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VII/198 Mark III Catalog of Galaxy Peculiar Velocities (Willick+ 1997)
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Mark III Catalog of Galaxy Peculiar Velocities: Distances for Groups and
Single Galaxies
Homogeneous Velocity-Distance Data for Peculiar Velocity Analysis. I.
Calibration of Cluster Samples
Willick J.A., Courteau S., Faber S.M., Burstein D., Dekel A.,
Kolatt T.
<Astrophys. J. 446, 12 (1995)>
=1995ApJ...446...12W
Homogeneous Velocity-Distance Data for Peculiar Velocity Analysis. II.
Calibration of Field Samples
Willick J.A., Courteau S., Faber S. M., Burstein D., Dekel A.,
Kolatt T.
<Astrophys. J. 457, 460 (1996)>
=1996ApJ...457..460W
Homogeneous Velocity-Distance Data for Peculiar Velocity Analysis. III.
The Mark III Catalog of Galaxy Peculiar Motions
Willick J.A., Courteau S., Faber S.M., Burstein D., Dekel A.,
Strauss M.A.
<Astrophys. J. Suppl. 109, 333 (1997)
=1997ApJS..109..333W
================================================================================
ADC_Keywords: Radial velocities ; Galaxy catalogs ; H I data
Keywords: galaxies: distances and redshifts - galaxies: peculiar
Abstract:
Tully-Fisher and Dn-sigma distances, radial velocities, and associated
catalog and observational data for the spiral, irregular, and
elliptical galaxies that comprise the Mark 3 catalog are given in
5 different kinds of tables for seven separate data sets. Users
interested only in the resulting distances need use only the files
listed in sections 3 (Grouped spiral distance files), 4 (Elliptical
galaxy distance files), and 5 (Comparison of galaxy distances).
Introduction:
The Mark III Catalog of Galaxy Peculiar Velocities comprises five
different types of data files.
1. Basic Observational and Catalog Data
2. Individual Galaxy TF and Dn-sigma Distances
3. Grouped Spiral Galaxy TF Distances
4. Elliptical Galaxy Distances as in the Mark II
5. Comparison of Spiral Galaxy Distances
1. The Basic Data files are:
a. Aaronson et al. Field, (359 galaxies; a82):
a82file1.dat, a82file2.dat, a82file3.dat
b. Mathewson et al. 1992 (1355 galaxies; mat):
matfile1.dat, matfile2.dat, matfile3.dat
c. Willick 1991, Perseus-Pisces sample (383 galaxies; w91pp):
d. Willick 1991, Cluster galaxy sample (156 galaxies; w91cl):
The basic data for all 539 objects in the w91 sample are given
in the following files: w91file1.dat, w91file2.dat, w91file3.dat
Some galaxies are duplicates; see below for details.
e. Courteau-Faber 1993 (326 galaxies; cf):
cffile1.dat, cffile2.dat, cffile3.dat
f. Han-Mould et al. 1992+, Cluster galaxy sample (433 galaxies; hmcl):
The basic data for all 433 galaxies the the hm sample are given
in the following files: hmfile1.dat, hmfile3.dat, hmfile2.dat
Some galaxies are duplicates; see below for details.
2. The Individual Spiral Galaxy Distances Files are:
(See notes for detailed descriptions of how the w91pp, w91cl,
hmcl and cf distance files correspond to the galaxies in the
w91file*, hmfile*, and cffile* Basic Data files.)
a. Aaronson et al. Field, (359 galaxies; a82): a82_s
b. Mathewson et al. 1992 (1355 galaxies; mat): mat_s
c. Willick 1991, Perseus-Pisces sample (326 galaxies; w91pp): w91pp_s.dat
d. Willick 1991, Cluster galaxy sample (156 galaxies; w91cl): w91cl_s.dat
e. Courteau-Faber 1993 (321 galaxies; cf): cf_s.dat
f. Han-Mould et al. 1992+, all cluster galaxies
(427 galaxies; hmcl): hmcl_s.dat
3. The Grouped Spiral Galaxy Distance Files are:
(Note: Group numbers in the wcf group (merged w91pp and cf) data
file correspond to those in the w91pp and cf individual galaxy
files. The hmw group file (merged w91cl and hmcl, 10 northern
clusters only, cf. Willick et al. 1995) does not correspond to
any individual galaxy distance file.)
a. Aaronson et al. Field, (67 groups; a82): a82_g
b. Mathewson et al. 1992 (277 groups; mat): mat_g
c. Willick 1991, Perseus-Pisces sample (63 groups; w91pp): w91pp_g
d. Willick 1991, Cluster galaxy sample (11 groups; w91cl): w91cl_g
e. Courteau-Faber 1993 jointly grouped with Willick 1991
(65 groups; wcf): wcf_g
f. Han-Mould et al. 1992+, all cluster galaxies
(36 groups; hmcl): hmcl_g
g. Combined hmcl and w91cl distances for the 10 northern clusters in
common between the two samples (10 groups; hmw): hmw_g
4. Elliptical Galaxy Distance Files are:
a. The Basic Data for the Mark II elliptical galaxy data: egalf1.dat
b. The grouped data for the Mark II elliptical galaxy data, normalized
in distance to the full spiral galaxy sample (a 3.5% revision in
distances, such that the new distances are 0.965 times the old):
egalf2.dat
5. Comparison of Galaxy Distances:
This gives a direct comparison of predicted distance, magnitude and
rotation velocity (eta) for 403 galaxies in common to two or more of
the six spiral galaxy data sets:
six data sets: match
Disclaimer Note:
IMPORTANT NOTE/DISCLAIMER
In all cases, the Basic data files try to give the data as either
published or otherwise given to us by the original author(s).
In contrast, the Spiral Galaxy distance files contain data as
homogenized by the authors' methodology. In many cases, value of
radial velocity may differ by up to 50 km/sec (in the case of Local
Group velocities), owing to both round-off errors in our computer
programs and to differences in how to transform from one velocity
reference frame to another. Similar, values of eta may differ
in the last decimal place by up to 0.004. Only if much larger
differences are found do the originators of these files wish
the user to contact them. As errors are inevitable in a
compendium of this size, notice of large errors found is much
appreciated.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
a82file1.dat 118 359 Mark 3 AHM field data_1 file
a82file2.dat 119 359 Mark 3 AHM field data_2 file
a82file3.dat 92 359 Mark 3 AHM field data_3 file
matfile1.dat 116 1355 Mark 3 1st Mathewson data file
matfile2.dat 121 1355 Mark 3 2nd Mathewson data file
matfile3.dat 93 1355 Mark 3 3rd Mathewson data file
w91file1.dat 111 539 Mark 3 Willick 1991 data_1 file
w91file2.dat 63 539 Mark 3 Willick 1991 data_2 file
w91file3.dat 53 539 Mark 3 Willick 1991 data_3 file
cffile1.dat 111 326 Mark 3 Courteau-Faber data_1 file
cffile2.dat 64 326 Mark 3 Courteau-Faber data_2 file
cffile3.dat 43 326 Mark 3 Courteau-Faber data_3 file
hmfile1.dat 111 433 Mark 3 1st Han-Mould data file
hmfile2.dat 93 433 Mark 3 2nd Han-Mould data file
hmfile3.dat 89 433 Mark 3 3rd Han-Mould data file
hmcl_s.dat 130 427 HM cluster (HMCL) ind dist file
w91cl_s.dat 130 156 W91 cluster (W91CL) ind dist file
w91pp_s.dat 130 326 W91 Per-Pis (W91PP) ind dist file
cf_s.dat 130 321 Courteau-Faber (CF) ind dist file
mat_s.dat 130 1355 Mathewson etal (MAT) ind dist file
a82_s.dat 130 359 Aaronson etal (A82) ind dist file
hmcl_g.dat 80 36 HM cluster (HMCL) gp dist file
w91cl_g.dat 80 11 W91 cluster (W91CL) gp dist file
wcf_g.dat 67 65 CF+W91 merged (WCF) gp dist file
mat_g.dat 67 277 Mathewson etal (MAT) gp dist file
a82_g.dat 67 67 Aaronson etal (A82) gp dist file
w91pp_g.dat 67 63 W91 PP (W91PP) gp dist file
hmw_g.dat 67 10 HM+W91 merged (HMW) gp dist
match.dat 128 403 Matched Spiral galaxy distances
egalf1.dat 128 717 Mark 3 E galaxy data_1 file
egalf2.dat 79 544 Mark 3 E galaxy data_2 file
--------------------------------------------------------------------------------
See also:
http://redshift.stanford.edu/MarkIII/ : detailed description
Byte-by-byte Description of file: a82file1.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- RC3num ?=0 Number in computer-readable RC3 file (1)
7- 11 I5 --- RC2num ?=0 Number in computer-readable RC2 file (1)
12- 17 I6 --- UGCnum ?=0 Number in computer-readable UGC file (1)
18- 23 I6 --- ESOnum ?=0 Number in computer-readable ESO file (1)
24- 28 I5 --- Catnum Unique number in Mark 3 AHM catalog (1)
29- 31 I3 --- Gp_code Group number code (2)
34- 37 F4.2 mag A-ext_1 4(E(B-V))_1, Burstein-Heiles method (3)
40- 43 F4.2 mag A-ext_2 4(E(B-V))_2, BH method, but from Mark II (3)
46- 49 F4.2 [.1arcmin] Log_D_g ?=9.99 Log D_g, units of 0.1 arcmin (4)
52- 55 F4.2 [.1arcmin] Log_D_1 ?=9.99 Aaronson publ Log D_1, 0.1 arcmin (4)
58- 61 F4.2 --- Log_a/b1 Log (axial ratio) RC3 or ESO (5)
64- 67 F4.2 --- Log_a/b2 Log (axial ratio) Aaronson original (5)
69- 70 I2 deg Inclin1 Inclination, RC3, no 3 deg corr (6)
72- 73 I2 deg Inclin2 Inclination, RC3, with 3 deg corr (6)
75- 76 I2 deg Inclin3 Inclination, original Aaronson (6)
78- 79 I2 deg InclinH ?=0 Han (1992) inclination (6)
81- 86 F6.2 deg GLON Galactic longitude
88- 93 F6.2 deg GLAT Galactic latitude
95-103 A9 --- Name Galaxy Name (7)
105-111 A7 --- RC3_type RC3 galaxy type code
115-116 I2 --- RC2typn Numerical Code for RC2 galaxy types (8)
118 I1 --- Phot_typ Photometric galaxy type, Tormen-Burstein (8)
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Note (1):
RC3num, RC2num, UGCnum and ESOnum are the record numbers for each galaxy
in the direct access versions of the following four catalogs, as stored
in Ultrix format by Burstein. RC2num and UGCnum galaxies have
Burstein-Heiles galaxy counts and HI measures, from which reddenings
can be calculated. RC3num and ESOnum have reddenings alone listed.
RC2 catalog also has Holmberg (1958) stored for galaxies in common.
A zero for any record number indicates galaxy not in that catalog.
RC3num - RC3 (de Vaucouleurs et al. 1991), as electronically distributed by
Harold Corwin (rc39.all version)
RC2num - RC2 (de Vaucouleurs et al. 1976); original version from
Ohio State, pre-1980.
UGCnum - Uppsala General Catalogue (Nilson 1973); original version from
Ohio State, pre-1980. This direct access catalog has
23 more objects than in original UGC, owing to inclusion of
some UGCA objects. Also, many errors in original computer version
have been corrected in this version.
ESOnum - European Southern Observatory catalog. Culled from the full
ESO catalog (Lauberts 1982) for only galaxy or galaxy(?) objects,
16,154 in all. Global ESO-LV (Lauberts-Valentijn 1989) data
added to catalog for 14,083 galaxies in common.
Likewise, Catnum is a record number uniquely assigned to each
Aaronson et al. galaxy in the Tormen and Burstein (1995, ApJS 96, 123)
analysis.
Note (2):
Galaxies were assigned to groups/clusters by original Aaronson et al.
papers. [Note that these groups do not correspond to the Mark III
groups formed as described by Willick et al. 1996.] Each group/cluster
is assigned a numerical code in this table.
The codes are:
-1: NOT CLASSIFIED 60: N5566 GROUP
0: NOT ASSIGNED 61: GRUS
1: PISCES 62: N24/45
2: A 400 63: N134
3: A 539 64: N701/755
4: CANCER 65: N2336
5: A1367 66: N2841
6: COMA 67: N3079/U5459
7: Z74-23 68: N3184
8: HERCULES 69: N3521
9: PEGASUS 70: LEO TRIPLET
10: A2634/66 71: Can Van I
12: HYDRA 72: N5033
13: N3557 73: M51
14: CEN30 74: N5371
15: CEN45 75: N5364
16: ANTLIA 76: N5676
17: ESO508 77: N5866
18: PAVO 78: N6070
51: LOCAL CALIBRATORS 79: N7320/7331
52: VIRGO, MAIN CLUSTER 80: N7537/7541
53: N1023
54: ERIDANUS
55: FORNAX
56: LEO
57: URSA MAJOR
58: COMA I
59: VIRGO, SOUTH
See note (1) for a82file1.dat
Note (3):
Two values of Burstein-Heiles E(B-V) are given for completeness.
The value labeled _1 is for the present data. The value labeled _2 is what
was used in the Mark II Catalog of Peculiar Velocities, as electronically
distributed by Burstein starting in 1989. Differences of 0.02 to 0.06 in
4(E(B-V)) are evident, owing to issues explained in Burstein and Heiles
(1984, ApJS 54, 33).
Note (4):
D_g is the fiducial diameter used in this analysis, based on the
inclination-corrected diameter taken from the RC3 but making the
following correction:
log D_g = log D_25(RC3) - log(1-EXT/3.35),
for Galactic extinction effects on diameter.
It is important to note that Log D_g is in RC3 units of 0.1 arcmin.
The Aaronson published value of log D_1 is given as Log_D_1
(bytes 52-55), 0.1 arcmin units. 9.99 is given if no value available.
Note (5):
Log_a/b1 is the log of the axial ratio as taken from the RC3 or,
if not available there, taken from the original ESO data if an ESO galaxy.
In the case where no independent axial ratio is in a catalog, an axial
ratio was derived from the given Aaronson et al. inclination by inverting
their formula.
Log_a/b2 is the log of the axial ratio taken from Aaronson et al.
Note (6):
Inclin1 is the inclination of galaxy as given by RC3 axial ratio
and the Aaronson et al. formulation (i.e., assuming q = 0.2), but
without assuming a 3 deg correction to inclinat as applied by Aaronson
et al. in their papers.
Inclin2 is the inclination listed in the Aaronson et al. papers.
Inclin3 is Inclin1 with 3 deg added to be in accord with Aaronson et al.
formulation.
InclinH comes from Han (1992) Ph. D. thesis on cluster galaxies. This
value is null (0) for the field data set.
Note (7):
N = NGC (first name preference)
I = IC (2nd preference)
U = UGC (Nilson 1973) (3rd preference)
E = ESO (Lauberts 1982) (3rd preference)
Z = Zwicky, field+number (4th preference)
A = Anonymous, RA (hr,min), Dec (deg) (4th preference)
Note (8):
RC2 galaxy types are given numerical codes in the RC2. The code
used here slightly revises that code, giving 0 for true S0/a galaxies, and
-7 for IO galaxies.
Photometric Galaxy Type is the galaxy type assigned each galaxy based
on the growth curve analysis of Tormen and Burstein.
1 = S0, Sa and Sab
2 = Sb and Sbc
3 = Sc and Scd
4 = Sd to Im
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Byte-by-byte Description of file: a82file2.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- RC3num ?=0 Number in computer-readable RC3 file (1)
7- 11 I5 --- RC2num ?=0 Number in computer-readable RC2 file (1)
12- 17 I6 --- UGCnum ?=0 Number in computer-readable UGC file (1)
18- 23 I6 --- ESOnum ?=0 Number in computer-readable ESO file (1)
24- 28 I5 --- Catnum Unique number in Mark 3 AHM catalog (1)
29- 31 I3 --- Gp_code Group number code (2)
34- 39 F6.2 deg GLON Galactic longitude
42- 47 F6.2 deg GLAT Galactic latitude
50 I1 --- q_Hmag_g Quality parameter for H_g (3)
52- 57 F6.3 mag Hmag_g H_g at the log (D/D_g) = -0.5 diameter (4)
59- 64 F6.3 mag HmagAHM Aaronson et al publ galaxy H mag (4)
67- 72 F6.3 mag diffHmag ?=99.999 Hmag_g minus HmagAHM
74- 79 I6 km/s HelioV Heliocentric radial velocity (5)
82- 86 F5.1 km/s DelV "Raw" HI rotation velocity width (6)
89- 93 F5.3 --- Lg_DelVA Aaronson publ log (Corr HI vel width) (7)
96-101 F6.1 Jy*km/s HI_flux ?=0 Aaronson publ HI flux (8)
103-111 A9 --- Name Galaxy Name (9)
113-119 A7 --- RC3_type RC3 galaxy type code
--------------------------------------------------------------------------------
Note (1):
See note (1) for a82file1.dat.
Note (2):
See note (2) for a82file1.dat.
Note (3):
Quality parameter for H_g:
1 = likely error less than 0.2 mag
2 = likely error 0.2 - 0.35 mag
3 = likely error in excess of 0.35 mag
Note (4):
H_g, the H magnitude at the log (D/D_g) = -0.5 diameter (see note (4)
for a82file1 for definition of D_g) corrected only for Galactic extinction.
The inclination correction dependence of H_g is determined in a separate
paper by Willick et al. (1996). The corresponding published H-0.5 mag of
Aaronson et al. is given as HmagAHM (bytes 59-64).
Note (5):
Heliocentric radial velocity taken primarily from original Aaronson
et al. paper. For 23 galaxies, HelioV taken from NASA Extragalactic
Database as of mid-1994. See Tormen and Burstein for details.
Note (6):
"Raw" HI rotation velocity width, km/sec. This is the value as
would be observed without any inclination correction. See Tormen and
Burstein for details.
Note (7):
Lg_DelVA is the original log (HI profile velocity width) as
published by Aaronson et al. Note that this does not, in general,
correspond to the value of eta in the file a82_s, because
galaxy inclinations were recomputed for the Mark III catalog.
See Willick et al. 1997.
Note (8):
The HI flux in the profile, expressed in units of Jy*km/s.
The AHM papers typically quote an error of around 0.002 - 0.0025 Jy,
which needs to be multiplied by the observed width to get an error
for the flux. Given a typical width of 400 km/s, this translates
to an observational error of 0.8 - 1 Jy*km/s.
Note (9):
N = NGC (first name preference)
I = IC (2nd preference)
U = UGC (Nilson 1973) (3rd preference)
E = ESO (Lauberts 1982) (3rd preference)
Z = Zwicky, field+number (4th preference)
A = Anonymous, RA (hr,min), Dec (deg) (4th preference)
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Byte-by-byte Description of file: a82file3.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- PGCnum ?=0 Principal Galaxy Catalog number
7- 12 I6 --- RC3num ?=0 Number in computer-readable RC3 file (1)
13- 17 I5 --- RC2num ?=0 Number in computer-readable RC2 file (1)
18- 23 I6 --- UGCnum ?=0 Number in computer-readable UGC file (1)
24- 29 I6 --- ESOnum ?=0 Number in computer-readable ESO file (1)
30- 34 I5 --- Catnum Unique number in Mark 3 AHM catalog (1)
35- 37 I3 --- Gp_code Group number code (2)
40- 44 F5.2 mag BT-RC3 ?=0.00 B_T from the RC3 (3)
47- 51 F5.2 mag BT-oth ?=0.00 B_T from other sources (3)
54- 58 F5.2 mag BT-RC3C ?=0.00 B_T_RC3, corrected (3)
61- 66 F6.2 deg GLON Galactic longitude
69- 74 F6.2 deg GLAT Galactic latitude
76- 84 A9 --- Name Galaxy Name (4)
86- 92 A7 --- RC3_type RC3 galaxy type code
--------------------------------------------------------------------------------
Note (1):
See note (1) for a82file1.dat
Note (2):
See note (2) for a82file1.dat
Note (3):
B galaxy magnitudes taken from the RC3. 0.00 = no data.
Bytes 40-44 - Observed B_T as given in the computer version of RC3
Bytes 47-51 - Observed m_B as given in computer version of RC3; these are
B mags other sources, including ESO catalog.
Bytes 54-58 - RC3 B_To, B_T corrected for Galactic extinction
(from Burstein-Heiles values), inclination and K-correction.
RC3 converts Burstein-Heiles values of E(B-V) to extinction
by a ratio of 4.3 (not 4.0 as assumed by Burstein-Heiles).
Note (4):
N = NGC (first name preference)
I = IC (2nd preference)
U = UGC (Nilson 1973) (3rd preference)
E = ESO (Lauberts 1982) (3rd preference)
Z = Zwicky, field+number (4th preference)
A = Anonymous, RA (hr,min), Dec (deg) (4th preference)
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Byte-by-byte Description of file: matfile1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 5 I4 --- Catnum Unique number in Mark 3 MAT catalog (1)
7- 11 I5 --- PGCnum Principal Galaxy Catalog number
13- 20 A8 --- Name Mathewson Name for Galaxy (2)
22- 23 I2 h RAh 1950 Right Ascension (hour)
25- 26 I2 min RAm 1950 Right Ascension (min)
28- 29 I2 s RAs 1950 Right Ascension (seconds)
31 A1 --- DE- Sign of declination
32- 33 I2 deg DEd 1950 Declination (degrees)
35- 36 I2 arcmin DEm 1950 Declination (arcmin)
38- 39 I2 arcsec DEs 1950 Declination (arcsec)
41- 46 F6.2 deg GLON Galactic longitude
48- 53 F6.2 deg GLAT Galactic latitude
55- 60 F6.0 km/s HelioV Heliocentric radial velocity (3)
62- 67 F6.0 km/s CMB_V Radial velocity w.r.t. CMB (3)
70- 73 F4.2 arcmin DMaj_MAT Mathewson I band major axis (4)
76- 79 F4.2 arcmin DMin_MAT Mathewson I band minor axis (4)
81- 82 I2 deg Incl_MAT Inclination of galaxy as quoted by MAT (4)
84- 86 I3 deg PA_MAT Mathewson position angle of DMaj_MAT (4)
89- 92 F4.2 --- Lg(a/b)M Mathewson value of log (a/b) (4)
95- 98 F4.2 [.1arcmin] LogD_Mat Log DMaj_MAT, as observed (4)
101-104 F4.2 [.1arcmin] LgD_Matc Log DMaj_MAT, fully-corrected, as publ (4)
107-110 F4.2 mag Extinc_I Galactic Extinction in I-band (5)
112-116 F5.2 mag I-T-MAT1 Observed MAT I mag, cor only for Extinc_1 (5)
--------------------------------------------------------------------------------
Note (1):
Catnum is a unique number assigned to each galaxy from a given data
source in the Mark 3 catalogs. Mathewson Catnum values go from 1 to 1355.
Note (2):
The name of the galaxy as given by Mathewson et al.
E = ESO catalog name, in a format e.g. E539-005
M = MCG catalog name, in a format e.g., M-1-2-14 = M0102014
A = Anonymous galaxy designation, with RA (hr,min) and Dec (deg) given
N = NGC number
U = UGC number
Note (3):
HelioV is the heliocentric radial velocity of the galaxy, as quoted
by Mathewson.
CMB_V is the radial velocity of the galaxy relative to the Cosmic
Microwave Background, as quoted by Mathewson. (This will not, in
general, be equal to the CMB velocities given in the individual
galaxy distance files, because Mathewson et al. used a different
conversion from heliocentric to CMB velocities.)
Note (4):
Bytes 70-73 (DMaj_MAT), 76-79 (DMin_MAT), 81-82 (Incl_MAT),
84-86 (PA_MAT), 89-92 (Lg(a/b)M), 95-98 (LogD_Mat) and 101-104 (LgD_Matc)
are all values taken directly from the Mathewson et al. paper for
the defined parameters. LogD_Mat is the I band diameter of the galaxy
as observed by Mathewson et al. (i.e., before any corrections are applied).
LogD_Matc is the I-band diameter as fully-corrected for Galactic extinction,
inclination and K-corrections by Mathewson et al., but not the diameter
used in the Mark 3 analysis.
Note (5):
Bytes 107-110 (Extinc_I) are I-band extinctions by the relation
A_I = 1.68(E(B-V). Values of E(B-V) come from Burstein-Heiles as quoted
in the RC3 (de Vaucouleurs et al. 1991, as electronically distributed by
Harold Corwin [rc39.all version]). If no RC3 reddening given, then
Mathewson value is used.
Bytes 112-116 (I_T_MAT1) are the Mathewson observed I band magnitudes
corrected only for the values of Extinc_I. In particular, these are
not the same corrected I band magnitudes as quoted by Mathewson et al.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: matfile2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 5 I4 --- Catnum Unique number in Mark 3 MAT catalog (1)
7- 11 I5 km/s Opt_helV ?=0 Optical Heliocentric radial vel (2)
13- 17 I5 km/s Rad_helV ?=0 21 cm Radio Heliocentric radial vel (2)
20- 22 I3 km/s DelV_20 ?=0 21 cm Delta(V/2), at 20% level (3)
25- 27 I3 km/s DelV_50 ?=0 21 cm Delta(V/2), at 50% level (3)
30- 32 I3 km/s Delv_opt ?=0 H-alpha Delta(V/2) (3)
35- 37 I3 km/s DelV_MAT Mathewson adopted Delta(V/2), incl-corr (3)
38 A1 --- u_DelV* [:]Indication if Delta(V/2) error large (3)
40- 45 F6.2 mJy*km/s HI_flux ?=0.00 HI flux, in units of milli-Jy-km/sec
47- 50 F4.1 mJy*km/s e_HI_flux ?=0.00 error in HI flux measurement
53- 56 F4.2 mag Extinc_B Galactic extinction, B-band (4)
59- 63 F5.2 mag Bc_RC3 ?=0.00 Extinction-corrected B_T magnitude
from RC3 (5)
66- 69 F4.2 [.1arcmin] LogD_RC3 ?=0.00 Log D_25 from RC3 (5)
71- 75 F5.2 --- RC3_axis ?=-0.99 Log (a/b) from RC3 (5)
77- 81 F5.2 arcmin DMaj_ESO ?=0.00 ESO eye-determ B band major axis (6)
83- 87 F5.2 arcmin DMin_ESO ?=0.00 ESO eye-determ B band minor axis (6)
89- 93 F5.2 mag Bmag_ELV ?=0.00 ESO-LV B-band magnitude (6)
95- 99 F5.2 mag Rmag_ELV ?=0.00 ESO-LV R-band magnitude (6)
101-105 F5.2 arcmin DMaj_ELV ?=0.00 ESO-LV B band major axis diameter (6)
108-112 F5.3 [km/s] LogDelV Log of DelV_MAT (3)
114-121 A8 --- Name Mathewson Name for Galaxy (7)
--------------------------------------------------------------------------------
Note (1):
Catnum is a unique number assigned to each galaxy from a given data
source in the Mark 3 catalogs. Mathewson Catnum values go from 1 to 1355.
Note (2):
Bytes 7-11 (Opt_helV) is the heliocentric velocity of the galaxy quoted
by Mathewson et al. from optical spectra.
Bytes 13-17 (Rad_helV) is the heliocentric velocity of the galaxy quoted
by Mathewson et al. from 21 cm HI radio observations.
Note (3):
Bytes 20-22 (DelV_20) is the HI velocity profile half-width measured at
20% of the maximum of HI flux in the profile, as quoted by Mathewson et al.
Bytes 25-27 (DelV_50) is the HI velocity profile half-width measured at
50% of the maximum of HI flux in the profile, as quoted by Mathewson et al.
Bytes 30-32 (Delv_opt) is the velocity profile half-width as measured
from H-alpha emission lines measured from optical spectra.
Bytes 35-37 (DelV_MAT) is the velocity profile half-width adopted by
Mathewson et al., corrected for THEIR quoted value of galaxy inclination.
Byte 38 is given a colon (:) if, in the judgement of Mathewson et al. the
quoted DelV_MAT is of lower quality.
Bytes 108-112 is the log of DelV_MAT.
Note (4):
Bytes 53-56 (Extinc_B) are values of 4E(B-V), with E(B-V) using the
Burstein-Heiles method as quoted in the RC3 (de Vaucouleurs et al. 1991,
as electronically distributed by Harold Corwin [rc39.all version]).
If no RC3 reddening given, then Mathewson value for Extinc_B is used.
Note (5):
Bytes 59-63 (B_RC3) is the Extinc_B-corrected RC3-quoted B_T magnitude
or, if unavailable, the corrected Harvard magnitude m_B. Note that
this magnitude is only corrected for Galactic extinction.
Bytes 66-69 (LogD_RC3) and 71-75 (RC3_axis) are the values of the B-band
Log D_25 (as observed) and log (a/b) from the RC3.
Note (6):
Bytes 77-81 (DMaj_ESO) and 83-87 (DMin_ESO) are the blue band eye-measured
B-band major axis and minor axis of the Galaxy as quoted in Lauberts (1982).
Bytes 89-93 (Bmag_ELV) is the B-band total magnitude of the galaxy taken
from the Lauberts-Valentijn Surface Photometry ESO Catalog (1989).
Bytes 95-99 (Rmag_ELV) is the R-band total magnitude of the galaxy taken
from the Lauberts-Valentijn Surface Photometry ESO Catalog (1989).
Bytes 101-105 (DMaj_ELV) is the B-band major axis diameter for the galaxy
taken from the Lauberts-Valentijn Surface Photometry ESO Catalog (1989).
Note (7):
The name of the galaxy as given by Mathewson et al.
E = ESO catalog name, in a format e.g. E539-005
M = MCG catalog name, in a format e.g., M-1-2-14 = M0102014
A = Anonymous galaxy designation, with RA (hr,min) and Dec (deg) given
N = NGC number
U = UGC number
--------------------------------------------------------------------------------
Byte-by-byte Description of file: matfile3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 5 I4 --- Catnum Unique number in Mark 3 MAT catalog (1)
7- 11 F5.2 mag B-I_cat1 ?=-9.99 B_RC3 minus I_MAT, extinc-corr (2)
13- 17 F5.2 mag B-I_cat2 ?=-9.99 B_ESO-LV minus I_MAT, extinc-corr (2)
19- 23 F5.2 mag R-I_cat2 ?=-9.99 R_ESO-LV minus I_MAT, extinc-corr (2)
26- 29 F4.2 [.1arcmin] LogD_ESO ?=0.00 Log Maj axis, ESO eye measures (3)
32- 35 F4.2 [.1arcmin] LogD_ELV ?=0.00 Log Maj axis, ESO_LV (3)
38- 41 F4.2 --- Lg(a/b)E ?=0.00 Log (a/b), ESO-LV measures (3)
44- 48 F5.2 --- D-a/b1 ?=0.99 Log(a/b)RC3 minus Log(a/b)MAT (4)
50- 54 F5.2 --- D-a/b2 ?=0.99 Log(a/b)ESO minus Log(a/b)MAT (4)
56- 60 F5.2 --- D-a/b3 ?=0.99 Log(a/b)ESO-LV minus Log(a/b)MAT (4)
63 I1 --- q_Incl [0,1] MAT inclination quality 1 (5)
65 I1 --- q_Incl2 [0,3] MAT inclination quality 2 (5)
67 I1 --- q_DelV [0,1] Indication of low Delta(V/2) (6)
69 I1 --- f_type [0,2] Indication of peculiar RC3_type (7)
71 I1 --- q_Incl_3 [0,1] MAT inclination quality 3 (5)
73- 75 I3 --- DB_type Burstein numerical morphological type (8)
77- 83 A7 --- RC3_type Morphological type from RC3
86- 93 A8 --- ESO_type Morphological type from ESO
--------------------------------------------------------------------------------
Note (1):
Catnum is a unique number assigned to each galaxy from a given data
source in the Mark 3 catalogs. Mathewson Catnum values go from 1 to 1355.
Note (2):
These parameters are galaxy colors determined by taking catalog values
of magnitudes and the Mathewson et al. I band magnitude. These values
are corrected for Galactic extinction only (i.e., no inclination
correction has been applied).
Bytes 7-11 (B-I_cat1) is the B-I total magnitude using RC3 B_T and MAT_I.
Bytes 13-17 (B-I_cat2) is the B-I total magnitude using ESO-LV B_T
and MAT_I.
Bytes 19-23 (R-I_cat1) is the R-I total magnitude using ESO-LV R_T
and MAT_I.
RC3 (de Vaucouleurs et al. 1991, as electronically distributed by
Harold Corwin [rc39.all version]).
ESO catalog (Lauberts 1982).
ESO-LV catalog - Surface Photometry Catalog of the ESO galaxies
(Lauberts and Valentijn 1989).
Note (3):
Bytes 26-29 (LogD_ESO) is the Log of the ESO (Lauberts 1982) eye-estimated
major axis diameter, in the usual 0.1 arcmin RC3 format.
Bytes 32-35 (LogD_ELV) is the Log of the ESO-LV B mag D_25 major axis
diameter, in the usual 0.1 arcmin RC3 format.
Bytes 38-41 (Lg(a/b)E) is the log (a/b) of the galaxy as determined
from the ESO-LV catalog.
Note (4):
These are differences between the various measures of axial ratios for
each galaxy.
Bytes 44-48 (D-a/b1) is the difference, log(a/b)_RC3 minus Log(a/b)_MAT.
Bytes 50-54 (D-a/b2) is the difference, log(a/b)_ESO minus Log(a/b)_MAT.
Bytes 56-60 (D-a/b3) is the difference, log(a/b)_ESO-LV minus
Log(a/b)_MAT.
Note (5):
Given the problems found with the published Mathewson et al. axial
ratios and inclinations, in the Mark3 catalog we have indicated those
galaxies which have serious differences in their quoted axial ratios
between Mathewson and the other galaxy catalogs.
Byte 63: (q_Incl_1) This indicator is 1 if the Mathewson adopted
inclination of the galaxy is less than 38 deg (the cutoff for the Mark3
sample). It is 0 otherwise.
Byte 65: (q_Incl_2) This parameter results from testing how the
quoted Mathewson et al. galaxy inclination compares with taking the
value of log(a/b) quoted for the galaxy and determining inclination from
that value. If the difference in inclination, abs(MAT minus a/b_inferred)
is 4 deg or less, this quality parameter is 0; if the difference is
5-9 deg, it is 1; if the difference is 10-14 deg it is 2; if the difference
is 15 deg or greater, it is 3.
Byte 71 (q_Incl_3) This parameter tests for consistency between the axial
ratio of the galaxy as given by the RC3 and that given by MAT. If
the value in Bytes 44-48 (Diff_a/b1) is 0.30 or greater, this means
strong disagreement in axial ratio measurements, and this parameter is
1. Otherwise, this parameter is zero.
Note (6):
Byte 67: (q_DelV) This parameter is zero if log (DeltaV/2) is 1.90 or
greater (that is, rotation velocity 79 km/sec or more); it is 1 if
log (DeltaV/2) is less than 1.90.
Note (7):
Byte 69 (f_type) This parameter is 1 if the Hubble type given in the
RC3 includes the parameter P in such a way that the galaxy is identified
as being peculiar. The parameter is two if there is no magnitude for
the galaxy in either the RC3 or ESO-LV catalogs. The parameter is zero
otherwise.
Note (8):
Bytes 73-75 (DB_type) Burstein developed a hierarchical numerical typing
system for Morphological types. The system for the RC3, ESO and UGC
catalogs is as follows:
Burstein Code Number Classification
10 Ellipticals - normal
11 E - cD or '+' in RC3
12 Compact E's in RC3
14 E? in RC3
15 E-S0
100 S0
101 SB0
110 S0/a
111 SB0/a
120 Sa
121 SBa
122 Sa/SBa
130 Sa/b
131 SBa/b
132 Sa/b/SBa/b
140 Sb
141 SBb
142 Sb/SBb
150 Sb/Sc
151 SBb/c
152 Sb/c/SBb/c
160 Sc
161 SBc
162 Sc/SBc
170 Sc/d
171 SBc/d
172 Sc/d/SBc/d
180 Sd
181 SBd
190 Sd/Irr
191 SBd/Irr
192 SABd/Irr
195 Im
196 IBm
197 IABm
200 Irr
201 Dwarf Irr
210 Irregular labeled 'P' in RC3 (3 galaxies)
300 'S'
305 'SB'
310 'I?','IB?"
350 'L?'
400 Dwarf
500 Compacts
510 N
600 Multiple galaxies
610 Compact groups
620 Clusters
650 Doubles (general)
651 Doubles: E+E, E+S0, S0+S0
652 Doubles: E+S, S0+S
700 Peculiar
900 No galaxy class given
If one takes the numerical type and divides by 10 and take the integer
result, one gets:
Code Number/10 General Classification
1 E and E/S0
10 All S0
11 All S0/a
12 All Sa
13 All Sa/b
14 All Sb
15 All Sb/Sc
16 All Sc
17 All Sc/Sd
18 All Sd
19 All Sd/Irr
20 All Irr
30 All non-divided classified types
40 Dwarf galaxies
50 Compact galaxies and N galaxies
60 Multiple systems
70 Peculiar galaxies
90 No galaxy class given
Separately, one can test for SB, and S/SB galaxies by an appropriate
manipulation of the code number. In this way, most of the detail
in the morphological classification can be used in a numerical manner.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: w91file1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 I6 --- RC3num ?=0 Number in computer-readable RC3 file (1)
7- 12 I6 --- UGCnum ?=0 Number in computer-readable UGC file (1)
13- 18 I6 --- ESOnum ?=0 Number in computer-readable ESO file (1)
19- 24 I6 --- PGCnum ?=0 Principal Galaxy Catalog number
25- 28 I4 --- Catnum Unique number in Mark 3 W91 catalog (2)
30- 36 A7 --- Name Name assigned galaxy by Willick (3)
38- 45 F8.4 h RAh ?=-99.000 1950 RA, in decimal hours (4)
46- 53 F8.3 deg DEd ?=-99.000 1950 Declination, decimal deg. (4)
55- 60 F6.2 deg GLON Galactic longitude
62- 67 F6.2 deg GLAT Galactic latitude
69- 74 F6.0 km/s HelioV ?Heliocentric radial velocity (5)
76- 81 F6.0 km/s CMB_V ?Radial velocity w.r.t. CMB (5)
83- 87 F5.2 deg Inclin ?Inclination of galaxy as quoted by W91
90- 93 F4.2 --- Log(a/b) ?Log of axial ratio, obs by W91
96- 99 F4.2 mag Extinc_r Galactic Extinction in r-band (6)
101-105 F5.2 mag w91_rmag ?Galaxy total r mag, as observed (7)
107-111 F5.2 mag w91rmagc ?w91_rmag corrected for Extinc_r only (7)
--------------------------------------------------------------------------------
Note (1):
RC3num, UGCnum and ESOnum are the record numbers for each galaxy
in the direct access versions of the following three catalogs, as stored
in Ultrix format by Burstein. UGCnum galaxies have Burstein-Heiles galaxy
counts and HI measures, from which reddenings can be calculated.
RC3num and ESOnum have reddenings alone listed.
RC3num - RC3 (de Vaucouleurs et al. 1991), as electronically distributed by
Harold Corwin (rc39.all version)
UGCnum - Uppsala General Catalogue (Nilson 1973); original version from
Ohio State, pre-1980. This direct access catalog has
23 more objects than original UGC, owing to inclusion of
some UGCA objects. Also, many typos in original computer version
have been corrected in this version. The actual UGC number can
differ from the storage number UGCnum, owing to the extra
galaxies in the computer-readable UGC catalog.
ESOnum - European Southern Observatory catalog. Culled from the full
ESO catalog (Lauberts 1982) for only galaxy or galaxy(?) objects,
16,154 in all. Global ESO-LV (Lauberts-Valentijn 1989) data
added to catalog for 14,083 galaxies in common. (There are no
ESO galaxies in the W91 sample.)
Note (2):
Bytes 25-28 (Catnum) is a record number uniquely assigned to each Willick
1991 galaxy in the Mark III analysis. Willick Catnum values from 1 to 383
are the Perseus-Pisces (W91PP) sample; Willick Catnum values 384 to 539 are
the Willick cluster (W91CL) galaxies. There are 26 galaxies in common
between these two Willick samples:
Catnum1 Catnum2 UGC Name
68 384 U00501
71 385 U00525
73 386 U00540
77 387 U00556
78 388 U00557
79 389 U00562
81 390 U00565
84 392 U00624
85 393 U00633
90 394 U00679
93 395 U00732
96 396 U00810
97 397 U00820
98 398 U00841
102 399 U00927
106 400 U00987
107 401 U01013
113 402 U01094
308 503 U12631
317 504 U12678
319 505 U12701
321 506 U12721
324 507 U12746
326 508 U12755
329 509 U12772
335 510 U12855
In addition, there are 57 Willick galaxies in the DATA (w91filex.lst) files
that are not given distances in the mark3_ind* files. 40 of these galaxies
are the Zwicky galaxies, which are not part of the UGC-diameter limited,
complete sample used in the Mark III analysis papers (see Willick et al.
1996). 17 UGC galaxies were also excluded based on excessively large
apparent peculiar velocities, indicating either bad magnitudes, bad
inclination or bad HI velocity profile width. The 17 UGC galaxies
excluded are given here:
Catnum UGC Name (Galaxy excluded from distance files)
31 U00208
80 U00564
86 U00645
124 U01277
135 U01456
141 U01550
179 U01935
183 U01963
195 U02079
199 U02183
233 U12025
237 U12059
294 U12546
315 U12672
330 U12780
341 U12914
342 U12915
Note (3):
N = NGC
I = IC
U = UGC (Nilson 1973)
E = ESO (Lauberts 1982)
C = Zwicky, field+number
A = Anonymous, RA (hr,min), Dec (deg)
Note (4):
Coordinates are expressed in decimal numbers. RA is in hour, declination
in degrees. To convert RA to standard hr,min,sec, one must successively
convert the decimal part of this number to min and sec. Similarly for
declination.
Note (5):
Bytes 69-74 (HelioV) is the heliocentric radial velocity of the galaxy,
from sources as quoted by Willick (1991, Ph.D. thesis)
Bytes 76-81 (CMB_V) is the radial velocity of the galaxy relative to the
Cosmic Microwave Background, using the COBE heliocentric-to-CMB correction
of 368.6 km/sec towards l=264.7deg, b=48.2deg.
Note (6):
Bytes 96-99 (Extinc_r): Burstein-Heiles reddenings E(B-V), converted to
r-band extinctions by the relation A_r = 2.24(E(B-V) as derived by
Courteau (1996, ApJ Suppl. 103, p. 363) for r band data.
Note (7):
Bytes 101-105 (w91_rmag) is the total extrapolated r magnitude for the
galaxy, as observed. w91rmagc (bytes 107-111) is the corrected total
magnitude obtained by subtracting the correction Extinc_r
(bytes 96-99) from w91_rmag.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: w91file2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 5 I4 --- Catnum Unique number in Mark 3 W91 catalog (1)
7- 12 F6.0 km/s Radial_V ?CMB frame radial velocity from W91
14- 17 I4 km/s DelV_cor ?21 cm Delta(V), inclination-corrected (2)
20- 22 I3 km/s DelV_obs ?21 cm Delta(V), as observed (2)
25- 28 F4.2 mag Extinc_B Galactic extinction, B-band (3)
31- 35 F5.2 mag Bc_RC3 ?=-9.99 Extinc-corr B_T mag from RC3 (4)
38- 41 F4.2 [.1arcmin] LogD_RC3 ?=0.00 Log D_25 from RC3 (4)
43- 47 F5.2 --- RC3_axis ?=-0.99 Log (a/b) from RC3 (4)
50- 54 F5.3 [km/s] LDelVw91 ?Log of DelV_cor (2)
56- 63 A8 --- Name UGC number or Zwicky (C) fld+numb for galaxy
--------------------------------------------------------------------------------
Note (1):
Catnum is a record number uniquely assigned to each Willick 1991 galaxy
in the Mark III analysis. Willick Catnum values from 1 to 383 are
the Perseus-Pisces (W91PP) sample; Willick Catnum values 384 to 539 are
the Willick cluster (W91CL) galaxies. See Note (2) for file w91file1.lst
for further information.
Note (2):
Bytes 15-17 (DelV_cor) is the HI velocity width profile, corrected for
internal velocity dispersion as given in the Han, Mould et al. paper.
Bytes 20-22 (DelV_obs) is the HI velocity width profile, as observed.
Bytes 50-54 (LDelVw91) is the logarithm of DelV_cor.
Note (3):
Bytes 25-28 (Extinc_B) are values of 4E(B-V), with E(B-V) using the
Burstein-Heiles method as quoted in the RC3 (de Vaucouleurs et al. 1991,
as electronically distributed by Harold Corwin [rc39.all version]).
If galaxy not in RC3, E(B-V) taken from either UGC or ESO computer
catalogs of Burstein having Burstein-Heiles reddenings, or calculated
directly from the Burstein-Heiles computer-readable reddening maps.
Note (4):
Bytes 31-35 (Bc_RC3) is the Extinc_B-corrected RC3-quoted B_T magnitude
or, if unavailable, the Extinc_B-corrected Harvard magnitude m_B. Note
that this magnitude is only corrected for Galactic extinction.
Bytes 38-41 (LogD_RC3) and 44-47 (RC3_axis) are the values of the B-band
Log D_25 (as observed) and log (a/b) from the RC3.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: w91file3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 5 I4 --- Catnum Unique number in Mark 3 W91 catalog (1)
7- 11 F5.2 mag B-r_cat1 ?=-9.99 B_RC3 minus r_W91, extinc-corr (2)
13- 17 F5.2 --- D-a/b1 ?=0.99 Log(a/b)RC3 minus Log(a/b)w91 (3)
19- 23 F5.2 --- D-a/b4 ?=0.99 Log(a/b)UGC minus Log(a/b)w91 (3)
25 I1 --- f_type [0,2] Indication of peculiar RC3_type (4)
27 I1 --- q_Incl_3 [0,1] W91 inclination quality 1 (5)
29- 31 I3 --- DB_type1 ?=0 Burstein numeral morph type from RC3 (6)
33- 35 I3 --- DB_type2 ?=0 Burstein numerical morph type, UGC (6)
37- 43 A7 --- RC3_type ? Morphological type from RC3
--------------------------------------------------------------------------------
Note (1):
Catnum is a record number uniquely assigned to each Willick 1991 galaxy
in the Mark III analysis. Willick Catnum values from 1 to 383 are
the Perseus-Pisces (W91PP) sample; Willick Catnum values 384 to 539 are
the Willick cluster (W91CL) galaxies. See Note (2) for file w91file1.lst
for further information.
Note (2):
Bytes 7-11 (B-r_cat1) is the B-r color using RC3 B_T and r_w91.
RC3 (de Vaucouleurs et al. 1991, as electronically distributed by
Harold Corwin [rc39.all version]).
Note (3):
These are differences between the various measures of axial ratios for
each galaxy.
Bytes 13-17 (D-a/b1) is the difference, log(a/b)_RC3 minus Log(a/b)_W91.
Bytes 19-23 (D-a/b4) is the difference, log(a/b)_UGC minus Log(a/b)_W91.
Note (4):
Byte 25 (f_type) This parameter is one if the Hubble type given in the
RC3 includes the parameter P in such a way that the galaxy is identified
as being peculiar, an S0 or an S0/a. The parameter is zero otherwise.
Note (5):
Byte 27 (q_Incl_3) This parameter tests for consistency between the axial
ratio of the galaxy as given by the RC3 and that given by W91. If
the value in Bytes 13-17 (D-a/b1) is 0.30 or greater, this means
strong disagreement in axial ratio measurements, and this parameter is
one. Otherwise, this parameter is zero.
Note (6):
Bytes 29-31 (DB_type1) and bytes 33-35 (DB_type2) Burstein developed a
hierarchical numerical typing system for Morphological types. The system
for the RC3, ESO and UGC catalogs follows. DB_type1 is the numerical
code given to the RC3 morphological type; DB_type2 is the numerical
code given to the morphological type from the UGC catalog (UGC types
are only given by numerical code.)
Burstein Code Number Classification
10 Ellipticals - normal
11 E - cD or '+' in RC3
12 Compact E's in RC3
14 E? in RC3
15 E-S0
100 S0
101 SB0
110 S0/a
111 SB0/a
120 Sa
121 SBa
122 Sa/SBa
130 Sa/b
131 SBa/b
132 Sa/b/SBa/b
140 Sb
141 SBb
142 Sb/SBb
150 Sb/Sc
151 SBb/c
152 Sb/c/SBb/c
160 Sc
161 SBc
162 Sc/SBc
170 Sc/d
171 SBc/d
172 Sc/d/SBc/d
180 Sd
181 SBd
190 Sd/Irr
191 SBd/Irr
192 SABd/Irr
195 Im
196 IBm
197 IABm
200 Irr
201 Dwarf Irr
210 Irregular labeled 'P' in RC3 (3 galaxies)
300 'S'
305 'SB'
310 'I?','IB?"
350 'L?'
400 Dwarf
500 Compacts
510 N
600 Multiple galaxies
610 Compact groups
620 Clusters
650 Doubles (general)
651 Doubles: E+E, E+S0, S0+S0
652 Doubles: E+S, S0+S
700 Peculiar
900 No galaxy class given
If one takes the numerical type and divides by 10 and take the integer
result, one gets:
Code Number/10 General Classification
1 E and E/S0
10 All S0
11 All S0/a
12 All Sa
13 All Sa/b
14 All Sb
15 All Sb/Sc
16 All Sc
17 All Sc/Sd
18 All Sd
19 All Sd/Irr
20 All Irr
30 All non-divided classified types
40 Dwarf galaxies
50 Compact galaxies and N galaxies
60 Multiple systems
70 Peculiar galaxies
90 No galaxy class given
Separately, one can test for SB, and S/SB galaxies by an appropriate
manipulation of the code number. In this way, most of the detail
in the morphological classification can be used in a numerical manner.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: cffile1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 I6 --- RC3num ?=0 Number in computer-readable RC3 file (1)
7- 12 I6 --- UGCnum ?=0 Number in computer-readable UGC file (1)
13- 18 I6 --- ESOnum ?=0 Number in computer-readable ESO file (1)
19- 24 I6 --- PGCnum ?=0 Principal Galaxy Catalog number
25- 28 I4 --- Catnum Unique number in Mark 3 CF catalog (1)
30- 36 A7 --- Name UGC Number or Zwicky number (1)
39- 45 F7.4 h RAhr 1950 Right Ascension, in decimal hours (2)
47- 53 F7.3 deg DEdeg 1950 Declination, in decimal degrees (2)
55- 60 F6.2 deg GLON Galactic longitude
62- 67 F6.2 deg GLAT Galactic latitude
68- 74 F7.0 km/s HelioV Heliocentric radial velocity (3)
75- 81 F7.0 km/s CMB_V Radial velocity w.r.t. CMB (3)
83- 87 F5.2 deg Inclin Inclination of galaxy as quoted by CF
90- 93 F4.2 --- Log(a/b) Log of axial ratio, obs by CF
96- 99 F4.2 mag Extinc_r Galactic Extinction in r-band (4)
101-105 F5.2 mag CF_rmag Galaxy total r mag, as observed (5)
107-111 F5.2 mag CF_rmagc CF_rmag corrected for Extinc_r only (5)
--------------------------------------------------------------------------------
Note (1):
RC3num, UGCnum and ESOnum are the record numbers for each galaxy
in the direct access versions of the following three catalogs, as stored
in Ultrix format by Burstein. UGCnum galaxies have Burstein-Heiles galaxy
counts and HI measures, from which reddenings can be calculated.
RC3num and ESOnum have reddenings alone listed.
RC3num - RC3 (de Vaucouleurs et al. 1991), as electronically distributed by
Harold Corwin (rc39.all version)
UGCnum - Uppsala General Catalogue (Nilson 1973); original version from
Ohio State, pre-1980. This direct access catalog has
23 more objects than in original UGC, owing to inclusion of
some UGCA objects. Also, many errors in original computer version
have been corrected in this version.
Name - Here the Name is the UGC number of the galaxy. The actual
UGC number can differ from the storage number UGCnum, owing
to the extra galaxies in the computer-readable UGC catalog.
ESOnum - European Southern Observatory catalog. Culled from the full
ESO catalog (Lauberts 1982) for only galaxy or galaxy(?) objects,
16,154 in all. Global ESO-LV (Lauberts-Valentijn 1989) data
added to catalog for 14,083 galaxies in common. (There are no
ESO galaxies in the CF sample.)
Likewise, Catnum is a record number uniquely assigned to each
Courteau-Faber galaxy in the Mark III analysis.
The five Zwicky-only galaxies in this list do not appear in the distance
file "mark3_cf_s".
These galaxies are:
Catnum Zwicky Number
322 C406031
323 C421011
324 C421030
325 C476112
326 C477024
Note (2):
Coordinates are expressed in decimal numbers. RA is in hour, declination
in degrees. To convert RA to standard hr,min,sec, one must successively
convert the decimal part of this number to min and sec. Similarly for
declination.
Note (3):
Bytes 68-74 (HelioV) is the heliocentric radial velocity of the galaxy,
from sources as quoted by Courteau (1996, ApJ Suppl. 103, p. 363).
Bytes 75-81 (CMB_V) is the radial velocity of the galaxy relative to the
Cosmic Microwave Background, using the COBE heliocentric-to-CMB correction
of 368.6 km/sec towards l=264.7deg, b=48.2deg.
Note (4):
Bytes 96-99 (Extinc_r): Burstein-Heiles reddenings E(B-V), converted to
r-band extinctions by the relation A_r = 2.24(E(B-V) as assumed by
Courteau (1996).
Note (5):
Bytes 101-105 (CF_rmag) is the total extrapolated r magnitude for the
galaxy, as observed. CF_rmagc (bytes 107-111) is the corrected total
magnitude obtained by subtracting the correction Extinc_r (bytes 96-99)
from CF_rmag.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: cffile2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 5 I4 --- Catnum Unique number in Mark 3 CF catalog (1)
7- 12 F6.0 km/s CMB_V Radial velocity w.r.t. CMB (2)
15- 17 I3 km/s DelV_cor optical Delta(V), inclination-corrected (3)
20- 22 I3 km/s DelV_obs optical Delta(V), as observed (3)
25- 28 F4.2 mag Extinc_B Galactic extinction, B-band (4)
31- 35 F5.2 mag Bc_RC3 ?=-9.99 Extinc-corr B_T mag from RC3 (5)
38- 41 F4.2 [.1arcmin] LogD_RC3 ?=0.00 Log D_25 from RC3 (5)
43- 47 F5.2 --- RC3_axis ?=-0.99 Log (a/b) from RC3 (5)
50- 54 F5.3 [km/s] LgDelVCF Log of DelV_cor (3)
57- 63 A7 --- Name UGC number or Zwicky (C) fld+numb for galaxy
--------------------------------------------------------------------------------
Note (1):
Catnum is a record number uniquely assigned to each CF galaxy.
Note (2):
Bytes 7-12 (CMB_V) is the radial velocity of the galaxy relative to the
Cosmic Microwave Background, using the COBE heliocentric-to-CMB correction
of 368.6 km/sec towards l=264.7deg, b=48.2deg.
Note (3):
Bytes 15-17 (DelV_cor) is the optical velocity width, obtained as
described by Courteau (1992, Ph.D. thesis, University of California,
Santa Cruz).
Bytes 20-22 (DelV_obs) Optical velocity width profile, as observed
(Courteau 1992).
Bytes 50-54 (LgDelVCF) is the logarithm of DelV_cor.
Note (4):
Bytes 25-28 (Extinc_B) are values of 4E(B-V), with E(B-V) using the
Burstein-Heiles method as quoted in the RC3 (de Vaucouleurs et al. 1991,
as electronically distributed by Harold Corwin [rc39.all version]).
If galaxy not in RC3, E(B-V) taken from either UGC or ESO computer
catalogs of Burstein having Burstein-Heiles reddenings, or calculated
directly from the Burstein-Heiles computer-readable reddening maps.
Note (5):
Bytes 31-35 (Bc_RC3) is the Extinc_B-corrected RC3-quoted B_T magnitude
or, if unavailable, the Extinc_B-corrected Harvard magnitude m_B. Note
that this magnitude is only corrected for Galactic extinction, not for
internal extinction.
Bytes 38-41 (LogD_RC3) and 44-47 (RC3_axis) are the values of the B-band
Log D_25 (as observed) and log (a/b) from the RC3.
The five Zwicky-only galaxies in this list do not appear in the distance
file "mark3_cf_s".
These galaxies are:
Catnum Zwicky Number
322 C406031
323 C421011
324 C421030
325 C476112
326 C477024
--------------------------------------------------------------------------------
Byte-by-byte Description of file: cffile3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 5 I4 --- Catnum Unique number in Mark 3 CF catalog (1)
7- 11 F5.2 mag B-r_cat1 ?=-9.99 B_RC3 minus r_CF, extinc-corr (2)
13- 17 F5.2 --- D-a/b1 ?=0.99 Log(a/b)RC3 minus Log(a/b)CF (3)
19- 23 F5.2 --- D-a/b4 ?=0.99 Log(a/b)UGC minus Log(a/b)CF (3)
25 I1 --- f_type [0,2] Indication of peculiar RC3_type (4)
27 I1 --- q_Incl_3 [0,1] CF inclination quality 1 (5)
29- 31 I3 --- DB_type1 Burstein numerical morph type from RC3 (6)
33- 35 I3 --- DB_type2 Burstein numerical morph type, UGC or ESO (6)
37- 43 A7 --- RC3_type Morphological type from RC3 (7)
--------------------------------------------------------------------------------
Note (1):
Catnum is a record number uniquely assigned to each CF galaxy.
Note (2):
Bytes 7-11 (B-r_cat1) is the B-r color using RC3 B_T and r_CF.
RC3 (de Vaucouleurs et al. 1991, as electronically distributed by
Harold Corwin [rc39.all version]).
Note (3):
These are differences between the various measures of axial ratios for
each galaxy.
Bytes 13-17 (D-a/b1) is the difference, log(a/b)_RC3 minus Log(a/b)_CF.
Bytes 19-23 (D-a/b4) is the difference, log(a/b)_UGC minus Log(a/b)_CF.
Note (4):
Byte 25 (f_type) This parameter is 1 if the Hubble type given in the
RC3 includes the parameter P in such a way that the galaxy is identified
as being peculiar, an S0 or an S0/a. The parameter is zero otherwise.
Note (5):
Byte 27 (q_Incl_3) This parameter tests for consistency between the axial
ratio of the galaxy as given by the RC3 and that given by CF. If
the value in Bytes 13-17 (D-a/b1) is 0.30 or greater, this means
strong disagreement in axial ratio measurements, and this parameter is
one. Otherwise, this parameter is zero.
Note (6):
Bytes 29-31 (DB_type1) and bytes 33-35 (DB_type2) Burstein developed a
hierarchical numerical typing system for Morphological types. The system
for the RC3, ESO and UGC catalogs follows. DB_type1 is the numerical
code given to the RC3 morphological type; DB_type2 is the numerical
code given to the morphological type from the ESO catalog (UGC types
are only given by numerical code.)
Burstein Code Number Classification
10 Ellipticals - normal
11 E - cD or '+' in RC3
12 Compact E's in RC3
14 E? in RC3
15 E-S0
100 S0
101 SB0
110 S0/a
111 SB0/a
120 Sa
121 SBa
122 Sa/SBa
130 Sa/b
131 SBa/b
132 Sa/b/SBa/b
140 Sb
141 SBb
142 Sb/SBb
150 Sb/Sc
151 SBb/c
152 Sb/c/SBb/c
160 Sc
161 SBc
162 Sc/SBc
170 Sc/d
171 SBc/d
172 Sc/d/SBc/d
180 Sd
181 SBd
190 Sd/Irr
191 SBd/Irr
192 SABd/Irr
195 Im
196 IBm
197 IABm
200 Irr
201 Dwarf Irr
210 Irregular labeled 'P' in RC3 (3 galaxies)
300 'S'
305 'SB'
310 'I?','IB?"
350 'L?'
400 Dwarf
500 Compacts
510 N
600 Multiple galaxies
610 Compact groups
620 Clusters
650 Doubles (general)
651 Doubles: E+E, E+S0, S0+S0
652 Doubles: E+S, S0+S
700 Peculiar
900 No galaxy class given
If one takes the numerical type and divides by 10 and take the integer
result, one gets:
Code Number/10 General Classification
1 E and E/S0
10 All S0
11 All S0/a
12 All Sa
13 All Sa/b
14 All Sb
15 All Sb/Sc
16 All Sc
17 All Sc/Sd
18 All Sd
19 All Sd/Irr
20 All Irr
30 All non-divided classified types
40 Dwarf galaxies
50 Compact galaxies and N galaxies
60 Multiple systems
70 Peculiar galaxies
90 No galaxy class given
Separately, one can test for SB, and S/SB galaxies by an appropriate
manipulation of the code number. In this way, most of the detail
in the morphological classification can be used in a numerical manner.
Note (7):
Bytes 37-43 (RC3_type) The alphanumeric morphological type from
the RC3.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: hmfile1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 I6 --- RC3num ?=0 Number in computer-readable RC3 file (1)
7- 12 I6 --- UGCnum ?=0 Number in computer-readable UGC file (1)
13- 18 I6 --- ESOnum ?=0 Number in computer-readable ESO file (1)
19- 24 I6 --- PGCnum ?=0 Principal Galaxy Catalog number
25- 28 I4 --- Catnum Unique number in Mark 3 HM catalog (2)
31- 38 A8 --- Name Name assigned by HM (3)
39- 45 F7.4 h RAhr 1950 Right Ascension, in decimal hours (4)
47- 53 F7.3 deg DEdeg 1950 Declination, in decimal degrees (4)
55- 60 F6.2 deg GLON Galactic longitude
62- 67 F6.2 deg GLAT Galactic latitude
68- 74 F7.0 km/s HelioV Heliocentric radial velocity (5)
75- 81 F7.0 km/s CMB_V Radial velocity w.r.t. CMB (5)
83- 87 F5.2 deg Inclin Inclination of galaxy as quoted by HM
90- 93 F4.2 --- Log(a/b) Log of axial ratio, obs by HM
96- 99 F4.2 mag Extinc_I Galactic Extinction in I-band (6)
101-105 F5.2 mag HM_Imag Galaxy total I mag, as observed (7)
107-111 F5.2 mag HM_Imagc HM_Imag corrected for Extinc_I only (7)
--------------------------------------------------------------------------------
Note (1):
See Note (1) for a82file1.dat.
Note (2):
Catnum is a record number uniquely assigned to each Han-Mould galaxy in
the Mark III analysis. The data for HM galaxies come from four different
papers:
Catnum 1 to 209: Han, M.-S. 1992, ApJS 81, 35.
210 to 316: Mould, J. et al. 1993, ApJ 409, 14
317 to 373: Mould, J. et al. 1991, ApJ 383, 467.
374 to 429: Han, M.-S and Mould, J 1992, ApJ 396, 453.
(Perseus-Pisces sample)
430 to 433: Field galaxies found in these surveys
Of these galaxies, six are not given distance predictions
for various reasons:
Catnum Name
186 E576-32
399 U1344
430 Z180059
431 N3989
432 N3987
433 N3993
There are also six galaxies observed twice, once by Han 1992,
again by Han and Mould 1992. Both sets of observations are
included in the distance file:
Catnum1 Catnum2 Name
3 414 N444
4 415 N452
5 417 N536
16 408 U841
17 409 U987
19 412 U1066
Separately, the 48 galaxies towards the Great Attractor region observed by
Bothun et al. (ApJ 388, 253) are not included in this survey
for a combination of two reasons: a) Only 48 galaxies in the sample
and b) almost complete overlap with better calibrated samples
(e.g. 33 galaxies in common with Mathewson et al.).
Note (3):
Name: The naming convention for galaxies follows the convention:
A = Anonymous, RA (hr,min), Dec (deg) in usual convention
N = NGC
I = IC
U = UGC
E = ESO number, but with or without preceding E in front of number
Z, C = Zwicky, field+number
Note (4):
Coordinates are expressed in decimal numbers. RA is in hour, declination
in degrees. To convert RA to standard hr,min,sec, one must successively
convert the decimal part of this number to min and sec. Similarly for
declination.
Note (5):
HelioV is the heliocentric radial velocity of the galaxy as quoted
from the HM papers.
CMB_V is the radial velocity of the galaxy relative to the Cosmic
Microwave Background, using the COBE heliocentric-to-CMB correction
of 368.6 km/sec towards l=264.7deg, b=48.2deg.
Note (6):
Burstein-Heiles reddenings E(B-V), converted to I-band extinctions
by the relation A_I = 1.68(E(B-V)).
Note (7):
HM_Imag is the I band magnitude for the galaxy, as observed.
For Catnum values 1 to 209, this magnitude is within the 23.5 mag/arcsecsq
surface brightness isophote. For Catnum values 210 to 433, this
magnitude is within the 24 mag/arcsecsq isophote level.
HM_Imagc is the corrected total magnitude obtained by subtracting
the correction Extinc_I (bytes 96-99) only from HM_Imag.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: hmfile2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 5 I4 --- Catnum Unique number in Mark 3 HM catalog (1)
7- 12 F6.0 km/s CMB_V Radial velocity w.r.t. CMB (2)
15- 17 I3 km/s DelV_cor 21 cm Delta(V), inclination-corrected (3)
20- 22 I3 km/s DelV_obs 21 cm Delta(V), as observed (3)
25- 28 F4.2 mag Extinc_B Galactic extinction, B-band (4)
30- 34 F5.2 mag Bc_RC3 ?=-9.99 Extinc-corr B_T mag from RC3 (5)
37- 40 F4.2 [.1arcmin] LogD_RC3 ?=0.00 Log D_25 from RC3 (5)
42- 46 F5.2 --- RC3_axis ?=-0.99 Log (a/b) from RC3 (5)
49- 52 F4.2 arcmin D-MajESO ?=0.00 ESO eye-determ B band major axis (6)
55- 58 F4.2 arcmin D-MinESO ?=0.00 ESO eye-determ B band minor axis (6)
60- 64 F5.2 mag B-magELV ?=0.00 ESO-LV B-band magnitude (6)
66- 70 F5.2 mag R-magELV ?=0.00 ESO-LV R-band magnitude (6)
73- 76 F4.2 arcmin D-MajELV ?=0.00 ESO-LV B band major axis diameter (6)
79- 83 F5.3 [km/s] LgDelVHM Log of DelV_cor (3)
86- 93 A8 --- Name Han, Mould et al. Name for Galaxy (7)
--------------------------------------------------------------------------------
Note (1):
See note (2) for hmfile1.dat
Note (2):
Bytes 7-12 (CMB_V) is the radial velocity of the galaxy relative to the
Cosmic Microwave Background, using the COBE heliocentric-to-CMB correction
of 368.6 km/sec towards l=264.7deg, b=48.2deg.
Note (3):
Bytes 15-17 (DelV_cor) is the HI velocity width profile, corrected for
internal velocity dispersion as given in the Han, Mould et al. paper.
Bytes 20-22 (DelV_obs) is the HI velocity width profile, as observed.
Bytes 79-83 (LgDelVHM) is the logarithm of DelV_cor.
Note (4):
Bytes 25-28 (Extinc_B) are values of 4E(B-V), with E(B-V) using the
Burstein-Heiles method as quoted in the RC3 (de Vaucouleurs et al. 1991,
as electronically distributed by Harold Corwin [rc39.all version]).
If galaxy not in RC3, E(B-V) taken from either UGC or ESO computer
catalogs of Burstein having Burstein-Heiles reddenings, or calculated
directly from the Burstein-Heiles computer-readable reddening maps.
Note (5):
Bytes 30-34 (B_RC3) is the Extinc_B-corrected RC3-quoted B_T magnitude
or, if unavailable, the Extinc_B-corrected Harvard magnitude m_B. Note
that this magnitude is only corrected for Galactic extinction.
Bytes 37-40 (LogD_RC3) and 43-46 (RC3_axis) are the values of the B-band
Log D_25 (as observed) and log (a/b) from the RC3.
Note (6):
Bytes 49-52 (D_MajESO) and 55-58 (D_Min_ESO) are the blue band eye-measured
B-band major axis and minor axis of the Galaxy as quoted in Lauberts (1982).
Bytes 61-64 (B_magELV) is the B-band total magnitude of the galaxy taken
from the Lauberts-Valentijn Surface Photometry ESO Catalog (1989).
Bytes 67-70 (R_magELV) is the R-band total magnitude of the galaxy taken
from the Lauberts-Valentijn Surface Photometry ESO Catalog (1989).
Bytes 73-76 (D_MajELV) is the B-band major axis diameter for the galaxy
taken from the Lauberts-Valentijn Surface Photometry ESO Catalog (1989).
Note (7):
Name: The naming convention for galaxies follows the convention:
A = Anonymous, RA (hr,min), Dec (deg) in usual convention
N = NGC
I = IC
U = UGC
E = ESO number, but with or without preceding E in front of number
Z, C = Zwicky, field+number
--------------------------------------------------------------------------------
Byte-by-byte Description of file: hmfile3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 5 I4 --- Catnum Unique number in Mark 3 HM catalog (1)
7- 11 F5.2 mag B-I_cat1 ?=-9.99 B_RC3 minus I_HM, extinc-corr (2)
13- 17 F5.2 mag B-I_cat2 ?=-9.99 B_ESO-LV minus I_HM, extinc-corr (2)
19- 23 F5.2 mag R-I_cat2 ?=-9.99 R_ESO-LV minus I_HM, extinc-corr (2)
26- 29 F4.2 --- Lg(a/b)E ?=0.00 Log (a/b), ESO eye measures (3)
32- 35 F4.2 --- (a/b)ELV ?=0.00 Log (a/b), ESO-LV measures (3)
37- 41 F5.2 --- D-a/b1 ?=0.99 Log(a/b)RC3 minus Log(a/b)HM (4)
43- 47 F5.2 --- D-a/b2 ?=0.99 Log(a/b)ESO minus Log(a/b)HM (4)
49- 53 F5.2 --- D-a/b3 ?=0.99 Log(a/b)ESO-LV minus Log(a/b)HM (4)
55- 59 F5.2 --- D-a/b4 ?=0.99 Log(a/b)UGC minus Log(a/b)HM (4)
61 I1 --- f_DB_type1 [0,2] Indication of peculiar RC3_type (5)
63 I1 --- f_Incl_3 [0,1] HM inclination quality 1 (6)
65- 67 I3 --- DB_type1 Burstein numerical morph type from RC3 (7)
69- 71 I3 --- DB_type2 Burstein numerical morph type, UGC or ESO (7)
73- 79 A7 --- RC3_type Morphological type from RC3 (8)
81- 89 A9 --- oth_type Morphological type from ESO or UGC (8)
--------------------------------------------------------------------------------
Note (1):
See Note (2) for hmfile1.dat
Note (2):
These parameters are galaxy colors determined by taking catalog values
of magnitudes and the Mathewson et al. I band magnitude. These values
are corrected for Galactic extinction only (i.e., no inclination
correction has been applied).
Bytes 7-11 (B-I_cat1) is the B-I total magnitude using RC3 B_T and I_HM.
Bytes 13-17 (B-I_cat2) is the B-I total magnitude using ESO-LV B_T
and I_HM.
Bytes 19-23 (R-I_cat1) is the R-I total magnitude using ESO-LV R_T
and I_HM.
RC3 (de Vaucouleurs et al. 1991, as electronically distributed by
Harold Corwin [rc39.all version]).
ESO catalog (Lauberts 1982).
ESO-LV catalog - Surface Photometry Catalog of the ESO galaxies
(Lauberts and Valentijn 1989).
Note (3):
Bytes 26-29 (Lg(a/b)E) is the log (a/b) of the galaxy as determined
from the ESO catalog.
Bytes 32-35 ((a/b)ELV) is the log (a/b) of the galaxy as determined
from the ESO-LV catalog.
Note (4):
These are differences between the various measures of axial ratios for
each galaxy.
Bytes 37-41 (D-a/b1) is the difference, log(a/b)_RC3 minus Log(a/b)_HM.
Bytes 43-47 (D-a/b2) is the difference, log(a/b)_ESO minus Log(a/b)_HM.
Bytes 49-53 (D-a/b3) is the difference, log(a/b)_ESO-LV minus
Log(a/b)_HM.
Bytes 55-59 (D-a/b4) is the difference, log(a/b)_UGC minus Log(a/b)_HM.
Note (5):
Byte 61 (f_type) This parameter is 1 if the Hubble type given in the
RC3 includes the parameter P in such a way that the galaxy is identified
as being peculiar, an S0 or an S0/a. The parameter is zero otherwise.
Note (6):
Byte 63 (q_Incl_3) This parameter tests for consistency between the axial
ratio of the galaxy as given by the RC3 and that given by HM. If
the value in Bytes 43-47 (D-a/b1) is 0.30 or greater, this means
strong disagreement in axial ratio measurements, and this parameter is
one. Otherwise, this parameter is zero.
Note (7):
See Note (9) for matfile3.dat
Note (8):
Bytes 73-79 (RC3_type) and bytes 81-89 (oth_type) These are the
alphanumeric galaxy morphological types as given by both the RC3
and by the other catalog (either ESO or UGC) in which the galaxy is
found. Either RC3_type or oth_type is blank if no morphological class
is given.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: *_s.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- Catnum Unique number in Mark 3 Sample catalog (1)
6- 10 I5 --- PGCnum ?=0 Principal Galaxy Catalog number (1)
12- 20 A9 --- Name Galaxy Name (2)
21- 23 I3 --- Gp_code ?=-1 Potent Group number code (3)
25- 30 F6.2 deg GLON Galactic longitude
32- 37 F6.2 deg GLAT Galactic latitude
39- 43 F5.3 [km/s] eta Log DelV - 2.5 (4)
45- 49 F5.2 mag GalMag Corrected Galaxy Magnitude, sample depend (5)
51- 54 F4.1 --- Select Parameter used for galaxy selection (6)
56- 59 F4.2 mag Mag_corr Corrections from raw to Corrected Mag (5)
61- 64 F4.2 mag A-ext 4(E(B-V))_2, BH method (7)
66- 70 F5.3 --- Log_a/b Log (axial ratio) use (8)
72- 74 I3 --- DB_type Burstein morphological code number (9)
76- 80 I5 km/s Dist_tfr Distance, forward TF, raw (10)
82- 86 I5 km/s Dist_tfc Distance, forward TF, IHM-corrected (10)
88- 92 I5 km/s Dist_tfi Distance, inverse TF, raw (10)
94- 98 I5 km/s HelioV Heliocentric radial velocity (11)
100-104 I5 km/s Locgp_V Local Group radial velocity (11)
106-110 I5 km/s CMB_V Cosmic Microwave Bkgd radial velocity (11)
112-116 I5 km/s Dist_iras IRAS-predicted distance (10)
118-123 F6.3 --- Dens_over Local galaxy over-density (12)
125-130 F6.3 mag TF_resid ?=-9.999 Tully-Fisher resid, groups only (10)
--------------------------------------------------------------------------------
Note (1):
Bytes 1-4 (Catnum) is a record number uniquely assigned to each
galaxy in each data sample. Use this number to correspond the
data in this file to the basic data files (i.e., ...filex.lst)
for this galaxy sample.
Bytes 6-10 (PGCnum) is the number of the galaxy in the
Principal Galaxy Catalog (Paturel et al. 1991).
Note (2):
N = NGC (first name preference)
I = IC (2nd preference)
U = UGC (Nilson 1973) (3rd preference)
E = ESO (Lauberts 1982) (3rd preference)
Z = Zwicky, field+number (4th preference)
A = Anonymous, RA (hr,min), Dec (deg) (4th preference)
Note (3):
Bytes 21-23 (Gp_code) is the number of the group assigned to each galaxy.
If a galaxy is not assigned to a group, -1 is entered here.
All galaxies in the cluster samples (hm and w91cl) are assigned to
a group unless they were explicitly excluded from the TF
calibration procedure (cf. Willick et al. 1995, ApJ 446, 12).
Galaxies in the field samples (w91pp, cf, mat, a82) are
placed into groups by the grouping algorithm of Willick et al.
(1996, ApJ 457, 460). Group number zero signifies that
the algorithm attempted to group the object but could not
because it did not have neighbors sufficiently close in
redshift space. Group number $-1$ signifies that the
object was excluded a priori from the grouping procedure.
For example, as explained in Willick et al. 1996 (Sec. 2 of
that paper), the grouping algorithm was not applied
to objects with ESO diameters smaller than 1.6 arcmin,
with eta less than -0.42 or with inclinations less than
35 degrees. In addition, a small number of objects were
excluded a priori for what were judged to be unreliable
axial ratios. CF galaxies that lie in the Perseus-Pisces
region, not otherwise in the w91PP sample, are combined
with the w91pp sample for the purpose of forming maximal groups
for later velocity analysis. The result is that
cf and w91pp group numbers correspond to the same grouped sample.
Note (4):
Bytes 39-43 (eta = Log DelV - 2.5), where delV is the velocity full
width, determined primarily from HI profiles, but in some cases
from optical H-alpha rotation curves (cf. Willick et al. 1997).
Note (5):
Bytes 45-49 (GalMag) is the galaxy magnitude that goes into the
Tully-Fisher distance calculation, fully corrected for Galactic
extinction, inclination and redshift/distance dependencies
(see Willick et al. 1997 for details).
Bytes 56-59 (Mag_corr) is the sum of all the the corrections
that are applied to the observed galaxy magnitude to produce GalMag.
Note (6):
Bytes 51-54 (Select) is the parameter on which the given galaxy
sample was initially selected, and it can be either a diameter
(in units or arcmin) or a magnitude. The actual diameter parameter can
be either the ESO diameter or the UGC diameter. The actual magnitude
parameter can be the Zwicky magnitude, or a raw RC3 magnitude (the last
applies to a82 data only). This column is meant to signify the quantity
that best approximates the sample selection criterion. E.g., for
MAT we assume d_eso >= 1.6, for W91PP d_ugc >= 1.0, etc, when putting
together "complete" samples. This column is not meant to be "good" data,
it's just what the parent catalog gives.
Note (7):
Bytes 61-64 (A_Ext) Burstein-Heiles (1984, ApJS 54, 33) and
unpublished maps) estimated B magnitude extinction, defined as 4.E(B-V).
Note (8):
Bytes 66-70 (Log_a/b) is the log of the axial ratio, major axis divided by
minor axis, used for the galaxy in making inclinations corrections
to observed maximum rotation velocities, magnitudes and diameters.
Note (9):
Bytes 72-74 (DB_type) is the hierarchical numerical morphological
code developed by David Burstein for use with computer-based
galaxy catalogs. The system for the RC3, ESO and UGC catalogs follows.
Burstein Code Number Classification
10 Ellipticals - normal
11 E - cD or '+' in RC3
12 Compact E's in RC3
14 E? in RC3
15 E-S0
100 S0
101 SB0
110 S0/a
111 SB0/a
120 Sa
121 SBa
122 Sa/SBa
130 Sa/b
131 SBa/b
132 Sa/b/SBa/b
140 Sb
141 SBb
142 Sb/SBb
150 Sb/Sc
151 SBb/c
152 Sb/c/SBb/c
160 Sc
161 SBc
162 Sc/SBc
170 Sc/d
171 SBc/d
172 Sc/d/SBc/d
180 Sd
181 SBd
190 Sd/Irr
191 SBd/Irr
192 SABd/Irr
195 Im
196 IBm
197 IABm
200 Irr
201 Dwarf Irr
210 Irregular labeled 'P' in RC3 (3 galaxies)
300 'S'
305 'SB'
310 'I?','IB?"
350 'L?'
400 Dwarf
500 Compacts
510 N
600 Multiple galaxies
610 Compact groups
620 Clusters
650 Doubles (general)
651 Doubles: E+E, E+S0, S0+S0
652 Doubles: E+S, S0+S
700 Peculiar
900 No galaxy class given
If one takes the numerical type and divides by 10 and take the integer
result, one gets:
Code Number/10 General Classification
1 E and E/S0
10 All S0
11 All S0/a
12 All Sa
13 All Sa/b
14 All Sb
15 All Sb/Sc
16 All Sc
17 All Sc/Sd
18 All Sd
19 All Sd/Irr
20 All Irr
30 All non-divided classified types
40 Dwarf galaxies
50 Compact galaxies and N galaxies
60 Multiple systems
70 Peculiar galaxies
90 No galaxy class given
Separately, one can test for SB, and S/SB galaxies by an appropriate
manipulation of the code number. In this way, most of the detail
in the morphological classification can be used in a numerical manner.
In the case of the a82 data set, the morphological code number is
that used by the 2nd Reference Catalog of Bright Galaxies (RC2;
de Vaucouleurs, de Vaucouleurs & Corwin 1976).
Note (10):
Bytes 76-80 (Dist_tfr) is raw forward TF distance, computed using the
forward TF parameters given in Willick et al. 1996, sample dependent.
The Forward TF relations use for each data sample, and the passband for
the quoted GMag are as follows (with errors given):
[mat] (I-band): M = -5.79 + 6.80(eta) sigma = 0.43
+_0.03 +_0.08
[w91cl] (r-band): M = -4.18 + 7.73(eta) sigma = 0.38
0.02 0.21
[w91pp] (r-band): M = -4.28 + 7.12(eta) sigma = 0.38
0.02 0.18
[cf] (r-band): M = -4.22 + 7.73(eta) sigma = 0.38
0.02 0.21
[hm] (I-band): M = -5.48 + 7.87(eta) sigma = 0.40
0.03 0.16
[a82] (H-band): M = -5.95 + 10.29(eta) sigma = 0.47
0.04 0.22
Bytes 82-86 (Dist_tfc) is the forward TF distance, fully corrected
for Inhomogeneous Malmquist Bias (IHM) (see Willick et al. 1997).
Bytes 88-92 (Dist_tfi) is the raw inverse TF distance, computed using
the inverse TF parameters given in Willick et al. 1997, sample dependent:
[mat]: eta = -5.96 + 0.1328(M_I) sigma = 0.059
+_0.03 +_0.0016
[w91cl]: eta = -4.23 + 0.1190(M_r) sigma = 0.047
0.02 0.0032
[w91pp]: eta = -4.32 + 0.1244(M_r) sigma = 0.049
0.02 0.0031
[cf]: eta = -4.27 + 0.1190(M_r) sigma = 0.047
0.02 0.0032
[hm]: eta = -5.58 + 0.1177(M_I) sigma = 0.048
0.03 0.0025
[a82]: eta = -5.98 + 0.0893(M_H) sigma = 0.043
0.04 0.0018
Bytes 112-116 (Dist_iras) is the expected distance derived from the
same IRAS reconstruction (beta=0.6) as was used in the Malmquist
correction procedure (see Willick et al. 1997, Sec. 5 for details).
This distance was computed as the expectation value of true distance,
given the observed radial velocity and the IRAS-predicted peculiar
velocity and density fields. A small-scale velocity dispersion of
150 km/s was assumed in the calculation. See Strauss \& Willick
(1995, Physics Reports, 261, 271; Sec. 8.1.3).
Bytes 123-130 (TF_resid) is the residual, in magnitudes, from the group
forward Tully-Fisher relation for galaxies defined to be in groups.
The value is -9.999 for galaxies not in groups.
Note (11):
Bytes 94-98 (HelioV) is the heliocentric radial velocity of the galaxy,
as quoted by the original source of data.
Bytes 100-104 (Loggp_V) is the radial velocity of the galaxy referred to
the Local Group velocity frame via the transformation given by
Yahil, Sandage and Tammann (1977, ApJ 217, 903), to be applied to
the heliocentric radial velocity:
V_corr = -79cos(l)cos(b) + 296sin(l)cos(b) - 36sin(b).
Bytes 106-110 (CMB_V) is the radial velocity of the galaxy referred to
the Cosmic Microwave Background motion of the Sun. Relative to the
heliocentric velocity frame, the CMB motion used is assumed to be
368.6 km/sec towards l = 264.7, b = 48.2.
Note (12):
Bytes 118-123 (Dens_over) is the local galaxy overdensity
defined as (n_g-n_0)/n_0 where n_g is the local number density
of galaxies and n_0 the mean number density, obtained from the
IRAS reconstruction of the galaxy density field. The IRAS
density was evaluated at the IHM-corrected forward TF distance
when Locgp_V is less than 1000 km/s; otherwise it is calculated
at the the IRAS-expected distance.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: *_g.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Gp_code Unique Group number in Mark 3 catalog (1)
4- 6 I3 --- num_gal Number of galaxies in group (1)
8- 13 F6.2 deg GLON Mean Galactic longitude of group
15- 20 F6.2 deg GLAT Mean Galactic latitude of group
22- 27 F6.3 [km/s] mean_eta Mean of (Log DelV - 2.5) for group (2)
29- 32 F4.2 mag tf_scatt Scatter in TF relation for group (3)
34- 38 I5 km/s Dist_tfc Forward TF distances for group (4)
40- 44 I5 km/s Dist_tfi Inverse TF distance for group (4)
46- 49 F4.2 mag e_Dist* Group distance modulus error (5)
51- 55 I5 km/s HelioV Mean Heliocentric radial velocity (6)
57- 61 I5 km/s Locgp_V Local Group radial velocity for grp (6)
63- 67 I5 km/s CMB_V Cosmic Microwave Bkgd radial vel, grp (6)
71- 80 A10 --- Name ? Name of Cluster for certain files (7)
--------------------------------------------------------------------------------
Note (1):
Bytes 1-3 (Gp_code) is a record number uniquely assigned to each
galaxy group within a given data sample. Each galaxy in the
Independent Distance files is given a Gp_code if it is placed into a group.
Bytes 4-6 (num_gal) is the number of galaxies in this group. In
corresponding the galaxies in the Independent Distance files to the
groups in these files, num_gal acts as a checksum on group identification.
IMPORTANT: Groups are, in general, defined separately for each data sample.
In most cases no attempt was made to place galaxies from different samples
into the same group, with two exceptions: In the file mark3_hmw_g, the
ten clusters common to the W91CL and HMCL samples have been merged and
the distances suitably averaged. However, the group numbers in the HMCL
and W91CL singles files correspond to hmcl_g and w91cl_g, not to wcf_g.
In the file mark3_wcf_g, 23 CF galaxies in the PP region, but not present
in the W91PP sample, were grouped along with the 326 W91PP galaxies.
The W91PP and CF singles files have group numbers that correspond to
WCF. See Willick et al. (1997) for further details.
Note (2):
Bytes 22-27 (mean_eta) is the mean value, <eta> = <Log DelV - 2.5> for
all the spiral galaxies of this particular sample in the group.
Note (3):
Bytes 29-32 (tf_scatt) is the observed scatter about the TF relation
for the galaxies in this group. This estimate is corrected for selection
bias and degrees of freedom (i.e., it is not just rms residual, because
the group distance modulus is a free parameter in the fit; cf. Willick
etal. 1996, 1997).
Note (4):
Bytes 34-38 (Dist_tfc) and Bytes 40-44 (Dist_tfi) are the distances
estimated for the group according to either a forward TF distance
relation (tfc) or an inverse TF distance relation (tfi). Both are
corrected for selection bias (however, this bias is small for tfi).
See Willick etal. (1996, 1997) for details.
The W91PP group file included for completeness only; WCF is suggested for
velocity analysis. The HMW group file contains only the 10 clusters
common to HMCL and W91CL (cf. Willick et al. 1995). These distances
are used by the POTENT algorithm for these clusters.
Note (5):
Bytes 46-49 (e_dist) is the Distance Modulus uncertainty for the
group, estimated from taking the observed scatter in the TF relation
for ALL galaxies in this sample (sigtf) and dividing by the square root
of num_gal. The values of sigtf assigned to each data set is as follows:
Data Sample sigtf
mark3_gp_hmcl 0.40 mag
mark3_gp_hmpp 0.40
mark3_gp_w91cl 0.38
mark3_gp_w91pp 0.38
mark3_gp_cf 0.38
mark3_gp_mat 0.43
mark3_gp_a82 0.47
Note (6):
Bytes 51-55 (HelioV) is the heliocentric radial velocity of the galaxy,
as quoted by the original source of data.
Bytes 57-61 (Loggp_V) is the radial velocity of the galaxy referred to
the Local Group velocity frame via the transformation given by
Yahil, Sandage and Tammann (1977, ApJ 217, 903), to be applied to
the heliocentric radial velocity:
V_corr = -79cos(l)cos(b) + 296sin(l)cos(b) - 36sin(b).
Bytes 63-67 (CMB_V) is the radial velocity of the galaxy referred to
the Cosmic Microwave Background motion of the Sun. Relative to the
heliocentric velocity frame, the CMB motion is assumed to be
368.6 km/sec towards l = 264.7, b = 48.2.
Note (7):
Bytes 69-77 (Name) is the cluster name for the w91cl and hmcl samples.
For the remaining samples, this entry is blank.
Five HMPP clusters have been included in the HMCL sample. These five
clusters (#s 32-36 in the hmcl file) were NOT included in the Paper I TF
calibration. However, it was found that their inclusion in the calibration
procedure has a negligible effect on the TF calibration parameters.
Distances and scatter resulting from the calibration algorithm with them
included are given here. No effort to modify them for the tiny differences
between the Paper I/II TF calibration and the calibration that results
with their inclusion was necessary.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: match.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- PGCnum Principal Galaxy Catalog number (1)
8- 12 I5 km/s HelioV Heliocentric radial velocity (2)
16- 21 F6.3 [km/s] eta_hm ?=0.000 Log DelV - 2.5 for HM data (3)
23- 27 F5.2 mag GMag_hm ?=0.00 Galaxy Magnitude, HM data (4)
29- 33 I5 km/s dist_hm ?=0 Forward raw TF distance for HM data (5)
35- 40 F6.3 [km/s] eta_w91c ?=0.000 Log DelV - 2.5 for W91CL data (3)
42- 46 F5.2 mag GMag_w91c ?=0.00 Galaxy Magnitude, W91CL data (4)
48- 52 I5 km/s dist_w91c ?=0 Forward raw TF dist for W91CL data (5)
54- 59 F6.3 [km/s] eta_w91p ?=0.000 Log DelV - 2.5 for W91PP data (3)
61- 65 F5.2 mag GMag_w91p ?=0.00 Galaxy Magnitude, W91PP data (4)
67- 71 I5 km/s dist_w91p ?=0 Forward raw TF dist for W91PP data (5)
73- 78 F6.3 [km/s] eta_cf ?=0.000 Log DelV - 2.5 for CF data (3)
80- 84 F5.2 mag GMag_cf ?=0.00 Galaxy Magnitude, CF data (4)
86- 90 I5 km/s dist_cf ?=0 Forward raw TF distance for CF data (5)
92- 97 F6.3 [km/s] eta_mat ?=0.000 Log DelV - 2.5 for MAT data (3)
99-103 F5.2 mag GMag_mat ?=0.00 Galaxy Magnitude, MAT data (4)
105-109 I5 km/s dist_mat ?=0 Forward raw TF distance for MAT data (5)
111-116 F6.3 [km/s] eta_a82 ?=0.000 Log DelV - 2.5 for A82 data (3)
118-122 F5.2 mag GMag_a82 ?=0.00 Galaxy Magnitude, A82 data (4)
124-128 I5 km/s dist_a82 ?=0 Forward raw TF distance for A82 data (5)
--------------------------------------------------------------------------------
Note (1):
Bytes 1-5 (PGCnum) is the number of the galaxy in the Principal Galaxy
Catalog (Paturel et al. 1991).
Note (2):
Bytes 24-28 (HelioV) is the mean heliocentric radial velocity of the
galaxy, averaged from the quoted values of the data samples being matched
for this galaxy. (Note: in the table that appears in Willick et al. (1997),
the Galactic longitude and latitude of these objects are indicated prior to
the radial velocity. The Galactic coordinates are also included in the
version of this table on the Web site maintained by Willick.)
Note (3):
Bytes 16-21 (eta_hm), Bytes 35-40 (eta_w91c), Bytes 54-59 (eta_w91p),
Bytes 73-78 (eta_cf), Bytes 92-97 (eta_mat), Bytes 111-116 (eta_a82):
This is the quoted values of Log DelV - 2.5 for the galaxy for the given
data sample.
Note (4):
Bytes 23-27 (GMag_hm), Bytes 42-46 (GMag_w91c), Bytes 61-65 (GMag_w91p),
Bytes 80-84 (GMag_cf), Bytes 99-103 (GMag_mat), Bytes 118-122 (GMag_a82):
This the quoted galaxy magnitude for the given data sample.
Note (5):
Bytes 29-33 (dist_hm), Bytes 48-52 (dist_w91c), Bytes 67-71 (dist_w91p),
Bytes 86-90 (dist_cf), Bytes 105-109 (dist_mat), Bytes 124-128 (dist_a82):
This is the quoted "raw" forward TF distance, computed using the forward
By "raw" we mean these distances are NOT corrected for Malmquist bias
or selection bias.
The Forward TF relations use for each data sample, and the passband for
the quoted GMag are as follows (cf. Willick et al. 1996c), with errors
given.
[mat] (I-band): M = -5.79 + 6.80(eta) sigma = 0.43
+_0.03 +_0.08
[w91cl] (r-band): M = -4.18 + 7.73(eta) sigma = 0.38
0.02 0.21
[w91pp] (r-band): M = -4.28 + 7.12(eta) sigma = 0.38
0.02 0.18
[cf] (r-band): M = -4.22 + 7.73(eta) sigma = 0.38
0.02 0.21
[hm] (I-band): M = -5.48 + 7.87(eta) sigma = 0.40
0.03 0.16
[a82] (H-band): M = -5.95 + 10.29(eta) sigma = 0.47
0.04 0.22
--------------------------------------------------------------------------------
Byte-by-byte Description of file: egalf1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- GINnum Galaxy identification number (1)
7- 16 A10 --- Name Galaxy name (2)
18- 23 F6.2 deg GLON Galactic longitude
25- 30 F6.2 deg GLAT Galactic latitude
32- 36 F5.2 mag A-ext_1 4(E(B-V)), Burstein-Heiles method (3)
37- 40 I4 --- GPnum Group/Cluster assignment number (4)
42- 47 F6.0 km/s HelioVI Heliocentric radial velocity of galaxy (5)
49- 54 F6.0 km/s HelioVG Heliocentric radial velocity of group (5)
56- 60 F5.2 mag (B-V)_0 ?=0.00 Reddening-corrected B-V color (6)
62- 66 F5.2 mag BT ?=0.00 Total B magnitude (7)
68- 72 F5.2 [.1arcmin] Log_A_e ?=0.00 Effective diameter (7)
74 I1 --- q_Log_A_e ?=0 quality parameter for Log_A_e (8)
75 I1 --- q_Log_D_n ?=0 quality parameter for Log_D_n (8)
76 I1 --- q_BT ?=0 quality parameter for B_T (8)
78- 82 F5.2 mag/arcsec2 SB_e ?=0.00 Mean effective B mag surface
brightness (7)
84- 89 F6.3 [km/s] Log_sig Log (velocity dispersion) (9)
92- 96 F5.3 [.1arcmin] Log_D_n ?=0.00 Log D_n parameter (0.1 arcmin) (7)
98-103 F6.3 mag Mg_2 ?=0.000 Mg_2 line index (10)
107-109 I3 --- data_src Source of data (11)
111-112 I2 h RAh 1950 Right Ascension, hours of time
114-115 I2 min RAm 1950 Right Ascension, minutes of time
117-118 I2 s RAs 1950 Right Ascension, seconds of time
120 A1 --- DE- Dec sign
121-122 I2 deg DEd 1950 Declination, degrees
124-125 I2 arcmin DEm 1950 Declination, arcmin
127-128 I2 arcsec DEs 1950 Declination, arcsec
--------------------------------------------------------------------------------
Note (1):
GINnum is the number uniquely assigned each galaxy for catalog work.
The value of the number corresponds to the source of data: 1-577
comes from the 7 Samurai survey. 581-655 comes from Lucey & Carter.
660-795 comes from the Dressler-Faber data. 800-872 are galaxies
for which the Log_sig and/or Log_D_n values are taken from more than
one source (listed by code as data_src; see Note (11)). There are
many more galaxies in this file than in egalf2.dat owing
to the fact that many galaxies do not have any, or complete, distance
related data.
Note (2):
The name of the galaxy as given by the original data source:
A = Abell cluster number and galaxy number; e.g. AXXXX-YYY
Ab = Abell cluster number plus letter designation for galaxy, e.g. Ab2199I
Anon = Anonymous galaxy designation, e.g. Anon1853 or Anon220+42
CR = Chincarini \& Rood (ApJ 1971, 168, 321) number
D = Dressler (1980, ApJS 42, 565) number for galaxy
E = ESO catalog name, in a format e.g. EXXX-G000 or EXXX-IG000
I = IC number
N = NGC number
PER = Dressler observations of Perseus galaxies
SPS = Dressler (1988, ApJ 329, 519) designation for redshift survey galaxy
U = UGC number
Note (3):
4 x E(B-V) taken from Burstein \& Heiles (1982 ApJS 54, 33) and
computerized reddening maps.
Note (4):
GPnum is the number given to the group or cluster to which the galaxy
has been assigned. See Faber et al. (1989) for details. In general
GPnum values of 0 are single galaxies (118 galaxies); GPnum between
20 and 110, and 274, 275 and 279 are galaxies in groups with more than
one member in this data set (370 galaxies); GPnum between 200 and 299,
not otherwise cited are galaxies known to be in a group or cluster, but
for which we only have one galaxy measured (56 galaxies).
Note (5):
HelioVI is the heliocentric radial velocity of the individual galaxy,
as given by the data source(s). When a galaxy has been measured more
than once, the value given in an average of the sources.
HelioVG is the heliocentric radial velocity of the group in which the
the galaxy is contained. This heliocentric velocity is the average
of all known galaxies in that group/cluster, not just those in the
Egal sample.
Note (6):
Photoelectric B-V color for the galaxy within a 67 arcsec diameter
aperture, as given by Burstein et al. (1987, ApJS 64, 601).
Note (7):
B_T, log_A_e, SB_e and Log D_n are the photometric parameters derived
either from photoelectric aperture growth curves (Burstein et al.
1987), or CCD images (Burstein et al. 1987; Lucey & Carter 1989;
Dressler & Faber 1990). All are either observed in, or transformed to,
the B mag passband. log A_e is the effective circular aperture for
the galaxy (the circular aperture containing 1/2 the galaxy light);
SB_e is the effective circular mean surface brightness. D_n is the
diameter within which the galaxy has a mean B mag surface brightness
of 20.75 mag/arcsec^2.
Note (8):
Quality parameters for the quoted values. See Burstein et al. (1987)
for the meaning of these parameters. q = 0, 3 or 4 for a parameter
means it is bad and not to be used for serious work.
Note (9):
Log_10 of velocity dispersion, in km/s, as quoted by the source(s).
If more than one source of velocity dispersion, the values are averaged.
Velocity dispersion used is the one corrected for distance-aperture
effect (see Davies et al. ApJS 64, 581).
Note (10):
The absorption line index Mg_2 for the galaxies, as quoted by the
source(s). If more than one source, the values are averaged.
Mg_2 values have been aperture-corrected as given in Davies et al. (1987).
Note (11):
Data Sources:
1 = 7 Samurai (Faber et al., Burstein et al., Davies et al.)
2 = Dressler & Faber
3 = Lucey and Carter
Combinations can be 12 (7S+DF), 13 (7S+LC); 23 (DF+LC) and 123 (all three).
--------------------------------------------------------------------------------
Byte-by-byte Description of file: egalf2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- GINnum Galaxy identification number (1)
6- 9 I4 --- GPnum Group/Cluster assignment number (2)
11- 17 F7.1 km/s HelioV Heliocentric radial velocity (3)
19- 25 F7.1 km/s LocGpV Local Group radial velocity (4)
27- 33 F7.1 km/s PecV1 Peculiar velocity, smooth Malmquist bias (5)
35- 41 F7.1 km/s DistMB1 Smooth Malmquist bias-corrected distance (5)
43- 49 F7.1 km/s Distraw Raw distance (5)
51- 56 F6.2 deg GLON Galactic longitude
58- 63 F6.2 deg GLAT Galactic latitude
67- 71 F5.3 [km/s] Log_sig Log (velocity dispersion) (6)
74- 79 F6.3 [.1arcmin] Log_D_n Log D_n parameter (0.1 arcmin units) (7)
--------------------------------------------------------------------------------
Note (1):
GINnum is the number uniquely assigned each galaxy for catalog work.
The value of the number corresponds to the source of data: 1-577
comes from the 7 Samurai survey. 581-655 comes from Lucey & Carter.
660-795 comes from the Dressler-Faber data. 800-872 are galaxies
for which the Log_sig and/or Log_D_n values are taken from more than
one source (see egalf1.dat or the sources).
Note (2):
GPnum is the number given to the group or cluster to which the galaxy
has been assigned. See Faber et al. (1989) for details. In general
GPnum values of 0 are single galaxies (118 galaxies); GPnum between
20 and 110, and 274, 275 and 279 are galaxies in groups with more than
one member in this data set (370 galaxies); GPnum between 200 and 299,
not otherwise cited are galaxies known to be in a group or cluster, but
for which we only have one galaxy measured (56 galaxies).
Note (3):
HelioV is the heliocentric radial velocity of the galaxy, as given
by the data sources. When a galaxy has been measured more than once,
the value given in an average of the sources.
Note (4):
LocGpV is the Local Group radial velocity of the galaxy, given by
the general prescription used in the Mark 2 catalog:
Note (5):
PecV1 is the predicted peculiar velocity assuming a smooth Malmquist bias
correction, and referred to the velocity of the galaxy with respect
to the Cosmic Microwave Background.
DistMB1 is the smooth Malmquist bias-corrected distance, in units of km/s.
To get the CMB velocity used here, simply add PecV1 to DistMB1.
Distraw is the predicted distance of the galaxy or group WITHOUT any
Malmquist bias correction added. To get the peculiar velocity predicted
without a Malmquist bias, simply take the difference between DistMB1
and Distraw and add this to PecV1.
Note: The peculiar velocities listed here are revised from the original
Mark II values, owing to a downward correction of predicted distance
by a factor of 0.965, to bring E galaxy distances into accord with
spiral galaxy distances. Hence, both DistMB1 and Distraw are 0.965
the value in the original Mark II, and PecV1 is the difference between
the CMB velocity and the new value of DistMB1.
Note (6):
Log_10 of velocity dispersion, in km/s, as quoted by the source(s).
If more than one source of velocity dispersion, the values are averaged.
Velocity dispersion used is the one corrected for distance-aperture
effect (see Davies et al. ApJS 64, 581).
Note (7):
D_n is the diameter within which the galaxy has a mean B mag surface
brightness of 20.75 mag/arcsec^2. Given in log units of 0.1 arcmin.
Acknowledgement:
The Astronomical Data Center thanks Dr. Burstein for not only providing
these data but also responding extensively and promptly to our many
questions.
================================================================================
(End) J.A. Willick & D. Burstein [Stanford/ASU] 31-Aug-1996