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J/ApJS/110/213 Morphological Types in 10 Distant Rich Clusters (Smail+ 1997)
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A Catalog of Morphological Types in 10 Distant Rich Clusters of Galaxies
Smail I., Dressler A., Couch W.J., Ellis R.S., Oemler A.Jr., Butcher H.,
Sharples R.M.
<Astrophys. J. Suppl. Ser. 110, 213 (1997)>
=1997ApJS..110..213S (SIMBAD/NED BibCode)
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ADC_Keywords: Clusters, galaxy ; Galaxy catalogs
Keywords: catalogs - galaxies: clusters : general - galaxies: structure
Mission_Name: HST
Abstract:
We present catalogs of objects detected in deep images of 11 fields in
10 distant clusters obtained using WFPC-2 on board the Hubble Space
Telescope. The clusters span the redshift range z=0.37-0.56 and are
the subject of a detailed ground- and space-based study to investigate
the evolution of galaxies as a function of environment and epoch. The
data presented here include positions, photometry and basic
morphological information on ~9000 objects in the fields of the 10
clusters. For a brighter subset of 1857 objects in these areas, we
provide more detailed morphological information.
Description:
The catalogs are presented in ASCII tables, along with FITS images of
the HST observations and Postscript versions of the plates from the
printed paper.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 100 11 Cluster parameters
table3.dat 174 8935 Object Catalog
table4.dat 108 1857 Morphology Catalog
imageva.fit 2880 3275 Reduced F555W WFPC-2 frame of A370 Field 2
imageia.fit 2880 3275 Reduced F814W WFPC-2 frame of A370 Field 2
imagerb.fit 2880 3220 Reduced F702W WFPC-2 frame of Cl 1447+23
imagebc.fit 2880 3442 Reduced F450W WFPC-2 frame of Cl 0024+16
imageic.fit 2880 3442 Reduced F814W WFPC-2 frame of Cl 0024+16
imagerd.fit 2880 3252 Reduced F702W WFPC-2 frame of Cl 0939+47
imageve.fit 2880 3189 Reduced F555W WFPC-2 frame of Cl 0939+47 F2
imageie.fit 2880 3189 Reduced F814W WFPC-2 frame of Cl 0939+47 F2
imagerf.fit 2880 3275 Reduced F702W WFPC-2 frame of Cl 0303+17
imagerg.fit 2880 3275 Reduced F702W WFPC-2 frame of 3C 295
imagevh.fit 2880 3274 Reduced F555W WFPC-2 frame of Cl 0412-65
imageih.fit 2880 3275 Reduced F814W WFPC-2 frame of Cl 0412-65
imageri.fit 2880 3260 Reduced F702W WFPC-2 frame of Cl 1601+42
imagevj.fit 2880 3275 Reduced F555W WFPC-2 frame of Cl 0016+16
imageij.fit 2880 3275 Reduced F814W WFPC-2 frame of Cl 0016+16
imagevk.fit 2880 3274 Reduced F555W WFPC-2 frame of Cl 0054-27
imageik.fit 2880 3275 Reduced F814W WFPC-2 frame of Cl 0054-27
plate1a.ps 132 118167 Postscript version of Plate 1a (A370 Field 2)
plate1b.ps 132 116652 Postscript version of Plate 1b (Cl 1447+23)
plate1c.ps 132 124677 Postscript version of Plate 1c (Cl 0024+16)
plate1d.ps 132 117838 Postscript version of Plate 1d (Cl 0939+47)
plate1e.ps 132 115067 Postscript version of Plate 1e (Cl 0939+47 F2)
plate1f.ps 132 118370 Postscript version of Plate 1f (Cl 0303+17)
plate1g.ps 132 118393 Postscript version of Plate 1g (3C 295)
plate1h.ps 132 118461 Postscript version of Plate 1h (Cl 0412-65)
plate1i.ps 132 117704 Postscript version of Plate 1i (Cl 1601+42)
plate1j.ps 132 118497 Postscript version of Plate 1j (Cl 0016+16)
plate1k.ps 132 118164 Postscript version of Plate 1k (Cl 0054-27)
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 A1 --- Cluster [a-k] Cluster (as in other tables)
3- 15 A13 --- Name Cluster designation
17- 18 I2 h RAh Right Ascension J2000 (hours)
20- 21 I2 min RAm Right Ascension J2000 (minutes)
23- 26 F4.1 s RAs Right Ascension J2000 (seconds)
28 A1 --- DE- Declination J2000 (sign)
29- 30 I2 deg DEd Declination J2000 (degrees)
32- 33 I2 arcmin DEm Declination J2000 (minutes)
35- 36 I2 arcsec DEs Declination J2000 (seconds)
39- 44 F6.2 deg PAV3 Position angle of field
47- 50 F4.2 --- z Cluster redshift
52- 55 F4.1 ks F450W ? Exposure time with F450W filter
57- 60 F4.1 ks F555W ? Exposure time with F555W filter
62- 65 F4.1 ks F702W ? Exposure time with F720W filter
67- 70 F4.1 ks F814W ? Exposure time with F814W filter
73- 76 F4.2 10+37W Lx ? X-ray luminosity (0.3-3.5keV)
79- 82 I4 km/s sVel ? Velocity dispersion
84- 85 I2 km/s e_sVel ? Mean error on sVel
87- 90 F4.2 kpc/arcsec Scale assuming Ho=100km/s/Mpc
92- 95 F4.2 mag E(B-V) Extinction
97-100 F4.1 mag/arcsec+2 mu1 Surface brightness limit
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1 A1 --- Cluster [a-k] Cluster field (see table1.dat)
2- 5 I4 --- ID *Object Number in cluster
8- 14 F7.2 pix Xpos X centroid on frame
17- 23 F7.2 pix Ypos Y centroid on frame
26- 31 F6.3 mag mag1.0 *1.0arcsec diameter red aperture magnitude
33- 38 F6.3 mag e_mag1.0 Mean error on mag1.0
41- 46 F6.3 mag isomag Isophotal magnitude above detection isophote
48- 53 F6.3 mag e_isomag Mean error on isomag
56- 61 F6.3 mag bestmag *Optimal measure of total magnitude
63- 68 F6.3 mag e_bestmag Mean error on bestmag
71- 74 I4 pix Area Isophotal area above detection isophote
77- 81 F5.2 pix rK Kron radius
84- 88 F5.2 pix a Second-order moment along major axis
91- 95 F5.2 pix b Second-order moment along minor axis
98-102 F5.1 deg theta *[-90,+90] Orientation of major axis
105-110 F6.3 mag/arcsec2 mu(thresh) Detection threshold
113-118 F6.3 mag/arcsec2 mu(max) Peak surface brightness
121-127 F7.2 --- Sky Background level (DN)
130-134 F5.2 pix FWHM from Gaussain fit
137-140 F4.2 --- P(star) *[0,1] Star-galaxy classification
142-147 F6.3 --- C1 *Concentration index
150-153 F4.2 --- C2 *[0,1] Constrast index
157-158 I2 --- Flags *Error flags
161-166 F6.3 mag ci1.0 *? Color measured in a 1.0" diameter aperture
169-174 F6.3 mag e_ci1.0 ? Mean error on ci1.0
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Note on ID:
IDs starting 2000 denote objects lying on the PC chip;
those starting 3000 are "additional" objects lying on the WFC
Note on mag1.0:
the parameter is F814W for clusters a,c,e,h,j,k,
and F702W for the clusters b,d,f,g,i
Note on bestmag:
variable-diameter aperture magnitude measured in an elliptical
aperture of major axis 2.5rK, unless Flags=1 occurred in which
case the "corrected" isophotal magnitude is used (Bertin &
Arnouts, 1996A&AS..117..393B)
Note on theta:
theta is defined counter-clockwise from the positive X-axis
Note on P(star):
classifier using neural-net weights: 0.0=galaxy, 1.0=star
Note on C1:
C1 represents the fraction of an object's light contained in the
central 30% of its area as measured in an ellipse aligned with the
object and having the same axial ratio (see Abraham et al.,
1994ApJ...432...75A). C1 is a measure of how centrally peaked an
object is.
Note on C2:
C2 measures the fraction of an object's light contained in the
brightest 30% of its pixels. C2 provides a measure similar to C1,
but without requiring the light to be centrally concentrated
Note on Flags:
1: bright neighbors may bias magnitude estimate;
2: originally a blend;
4: saturated;
8: object truncated by frame boundary;
16: incomplete aperture photometry;
32: incomplete isophotal photometry;
64: memory overflow during deblending;
128: memory overflow during extraction.
Note on ci1.0:
Only for those fields with color information:
F555W-F814W for clusters a,e,h,j,k ;
F450W-F814W for cluster c.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1 A1 --- Cluster [a-k] Cluster field (see table1.dat)
2- 5 I4 --- ID *Object Number in cluster
7- 11 A5 --- DG *Designation in Dressler (1992ApJS...78....1D)
14- 19 F6.3 mag bestmag *Optimal measure of total red magnitude
22- 26 F5.3 --- Asym *Asymetry parameter
28- 34 A7 --- MType *Hubble class
36- 38 I3 --- TType ?=-99 Numeric T-type
40- 42 I3 --- D *[0,4]?=-99 Disturbance index
44- 51 A8 --- Int *Interpretation of disturbance
52-113 A62 --- Comment Description of object morphology
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Note on ID:
IDs starting 2000 denote objects lying on the PC chip;
those starting 3000 are "additional" objects lying on the WFC
Note on DG: Nonexhaustive cross identification of objects against the
catalogs in Dressler & Gunn (1992ApJS...78....1D), for the clusters
Cl 0024+16, Cl 0939+47, Cl 0303+17, 3C 295, Cl 1601+42, and Cl 0016+16
Note on bestmag:
the parameter is F814W for clusters a,c,e,h,j,k,
and F702W for the clusters b,d,f,g,i
Note on Asym:
variable-diameter aperture magnitude measured in an elliptical
aperture of major axis 2.5rK, unless Flags=1 occurred in which
case the "corrected" isophotal magnitude is used (Bertin &
Arnouts, 1996A&AS..117..393B)
Note on MType:
The standard Hubble classification scheme (E, S0, Sa, Sb ) with the
addition of the following: D, cD, Morgan type D or cD galaxy; E/S0 or
S0/E, cannot distinguish E or S0; X, compact object (likely nonstellar
but too compact to see structure); *, stellar image; ?,
unclassifiable.
Note on D: Disturbance index:
0, normal;
1, moderate asymmetry;
2, strong asymmetry;
3, moderate distortion;
4, strong distortion;
-99, undefined.
Note on Int: Interpretation of disturbance classes:
M, merger;
I, tidal interaction with neighbor;
T, tidal feature;
C, chaotic;
!.remarkable.
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History:
* 07-May-1997: tabular data as a set of 22 FITS files on AAS CD-ROM series,
Volume 8, 1997, directory /volume8/apjs/inpress/smail (Lee Brotzman)
* 04-Jun-1998: tables reformatted and merged into 3 tables at CDS
(F. Ochsenbein)
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(End) Francois Ochsenbein [CDS] 04-Jun-1998