Access to Astronomical Catalogues

J/ApJS/110/213     Morphological Types in 10 Distant Rich Clusters (Smail+ 1997)
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)
ADC_Keywords: Clusters, galaxy ; Galaxy catalogs

Mission_Name: HST

Keywords: catalogs - galaxies: clusters : general - galaxies: structure


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:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat       100       11   Cluster parameters
table3.dat       174     8958   Object Catalog
table4.dat       113     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)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units     Label    Explanations

       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


Byte-by-byte Description of file: table3.dat

   Bytes Format Units   Label     Explanations

       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

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.


Byte-by-byte Description of file: table4.dat

   Bytes Format Units   Label     Explanations

       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

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.


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)
  * 18-Jul-2002: some records in table3 were missing (the number of records
    was 8935 instead of 8958), thanks to Bo Milvang-Jensen (Copenhague
    University) who reported the problem.
(End)                                     Francois Ochsenbein [CDS]  04-Jun-1998