ADC/CDS Standard Document for Catalog:/catalogs/7/7051/
ADC/CDS Standard Document for Catalog:| 1. Use the ADC Data Viewer Suite to visualize the data. |
|
| 2. Get the data files via anonymous FTP. (See Note.) |
|
VII/51 Revised Shapley-Ames Catalog of Bright Galaxies (Sandage+, 1981)
================================================================================
Revised Shapley-Ames Catalog of Bright Galaxies
Sandage A., Tammann G.A.
<Carnegie Institution of Washington Publication 635 (1981)>
=1981QB857.S26......
================================================================================
ADC_Keywords: Galaxy catalog
Historical Note:
The machine-readable catalog was prepared by Dr. R. Kraan-Korteweg
of the Astronomisches Institut der Univ. Basel, who graciously
supplied it on magnetic tape to Ms. Lynn S. Fischer of the Jet
Propulsion Laboratory to be used for the IRAS project. Ms. Fischer
kindly supplied it to the Astronomical Data Center (ADC). The
machine version was supplied "as is" to Dr. Herbert J. Rood of the
Institute for Advanced Study, who checked certain data fields
against the published catalog and made suggestions for improvement
of the computer version.
Modifications made at the ADC include the correction of several
errors noted by Dr. Rood, the right justification and alignment of
all galaxy designations, the removal of decimal points from some
RA values to allow uniform computer processing, and the expansion
of the field containing the mean error of the observed velocities
to allow for fractional values (these had been rounded) plus the
insertion of the correct values. Zero values in the A(i) field
were changed to 0.00 so that the field can be read with an F
format (there are blank fields also) and the velocity field was
expanded so that signs could be moved to occur uniformly in byte
66; "+" signs were added to positive values.
A brief description of the data fields in the machine version of
the catalog follows. The description has been prepared at the ADC
using a handwritten description from Dr. Krann-Korteweg and the
data description given in the published catalog (see the latter
for more detailed descriptions and comments). This description is
brief and almost certainly not complete, since it was assembled
from available information without a thorough comparison of the
machine version with the published catalog. Any codes not
described in the table should be interpreted by comparison with
the published catalog. A few coding errors were found and
corrected at the ADC during the course of this work, but a
complete check has not been made; thus, the ADC takes no
responsibility for any errors found.
Original description prepared by:
Wayne H. Warren Jr.
Astronomical Data Center
National Space Science Data Center
Greenbelt, Maryland 20771 USA
1987 April
This "ReadMe" file was later standardized at CDS.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
catalog.dat 75 1246 The Catalogue
--------------------------------------------------------------------------------
Byte-by-byte Description of file: catalog.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 A7 --- Name Galaxy identification
9- 10 I2 h RAh Right Ascension 1950 (hours)
11- 12 I2 min RAm Right Ascension 1950 (minutes)
13- 14 I2 s RAs Right Ascension 1950 (seconds)
15 A1 --- DE- Declination 1950 (sign)
16- 17 I2 deg DEd Declination 1950 (degrees)
18- 21 F4.1 arcmin DEm Declination 1950 (minutes)
22- 32 A11 --- Type1 Codes for galaxy types (1)
33 A1 --- op For double descriptions (if second type
mentioned) 'R' (or) '+' (and)
34- 44 A11 --- Type2 Description of second type (1)
45 A1 --- Rem Remarks (2)
46 A1 --- u_Rem [?] '?' for ?
47- 49 F3.1 --- Lum ? Luminosity class (3)
50 A1 --- LumC Luminosity class code (4)
52 A1 --- left Left bracket
53- 57 F5.2 mag B(T) Apparent magnitude B(T)
58 A1 --- u_B(T) [)] Right bracket
59- 62 F4.2 mag A(i) ? Internal absorption A(i)
63 A1 --- n_A(i) '*' for special values of A(i)
64- 65 A2 --- Member Group or cluster membership (see Table 2,
p. 10 of published catalog)
Codes L, S, N, C, M, V, VR, F
66- 70 I5 km/s Vel ? Mean weighted velocity from all available
determinations (km/s)
71- 75 F5.1 km/s e_Vel ? error in velocity
--------------------------------------------------------------------------------
Note (1): The codes for galaxy types are made of the following bytes:
+0 (22) 'C' cD galaxy
'D' dwarf for E, S0, S and I
'M' merged
'P' pseudo outer ring
'R' outer ring
'?' ?
+1 (23) 'U' the preceding description is in parentheses (uncertain)
'?' ?
+2 (24) Code for main galaxy type:
'D' cD galaxy
'P' peculiar
'E' E
'F' E/S0
'K' S0/E
'L' S0
'S' S (S0/a-Sm)
'I' I (for Im or amorphous = I0)
'-' E-S0, amorphous
'+' S0/a-Im
+3 (25) Code for description of bar:
'A' no bar
'B' bar
'X' either S/SB or SAB
'Y' S(B)
+4 (26) Code for index that follows S0:
'1' 1
'2' 1-2
'3' 2
'4' 2-3
'5' 3
'6' 1-3
+5 (27) Ellipticity of S0 [in () following S0 and index, e.g. E/S0(2/3)(4)]
(for E/S0, S0/E, S0, S0/a)
'1' ( 1)
'2' ( 2)
'.' .
'9' ( 9)
'Z' (10)
+6 (28) Inner ring structure:
'S' (s)
'R' (r)
'T' (rs)
'Q' (sr)
+7 (29) Further description of main galaxy type, cases
(a) = ellipticity for E (e.g. E4, E5/S0, ...)
(b) = spirality for S (same as RC2) :
(a) (b)
'0' E0 S0/a
'1' E1 Sa
'2' E2 Sab
'3' E3 Sb
'4' E4 Sbc
'5' E5 Sc
'6' E6 Scd
'7' E7 Sd
'8' Sdm
'9' Sm (Im)
+8 (30) Code for further description (byte +7)
':' followed by :
'?' followed by ?
'U' in ()
+9 (31) ':' whole type is uncertain
'?' ? following whole type
'U' whole type in parentheses ()
'V' whole type in brackets []
+10 (32) 'P' pec
'B' (pec)
'F' pec:
'G' pec?
Note (2): the remarks are
'D' (dust)
'J' (jet)
'L' (late)
'M' (merged)
'N' (nearly on edge)
'O' (on edge)
'P' (prolate)
'R' (ring)
'T' (tides)
'V' (very early)
Note (3): the Luminosity class is coded as follows:
'1.0' I
'1.5' I-II
'2.0' II
'2.5' II-III
'3.0' III
'3.5' III-IV
'4.0' IV
'4.5' IV-V
'5.0' V
'2.2' II.2 (intermediate classes)
'3.2' III.2 etc.
Note (4): the Luminosity class code is defined as follows:
':' luminosity class followed by :
'U' luminosity class enclosed in ()
'V' luminosity class in form (LC):
'W' luminosity class in form (LC:)
================================================================================
(End) [CDS] 08-Feb-1995