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J/ApJS/97/77                     Catalog of Coma Cluster Galaxies (Doi+ 1995)
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Automated Surface Photometry for the Coma Cluster Galaxies: The Catalog
     Doi M., Fukugita M., Okamura S., Tarusawa K.
    <Astrophys. J. Suppl. Ser. 97, 77 (1995)>
    =1995ApJS...97...77D
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ADC_Keywords: Clusters, galaxy; Galaxies, optical; Positional data; Magnitudes,
              photographic
Keywords: galaxies: clusters: individual (Coma) - galaxies: fundamental
  parameters - galaxies: photometry

Abstract:
       A homogeneous photometry catalog is presented for 450 galaxies with
    B25.5 <= 16 mag located in the 9.8 x 9.8 deg region centred on the
    Coma Cluster. The catalog is based on photographic photometry using an
    automated surface photometry software for data reduction applied to
    B-band Schmidt plates. The catalog provides accurate positions,
    isophotal and total magnitudes, major and minor axes, and a few other
    photometric parameters including rudimentary morphology (early or late
    type).



File Summary:
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 FileName    Lrecl    Records    Explanations
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ReadMe          80          .    This file
table1.dat     103        479    Catalog
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Byte-by-byte Description of file: table1.dat
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   Bytes  Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1-  3   I3     ---     Num      [1/450]+= Internal number [DFO95]
   5- 12   A8     ---     CGCG     Identification from CGCG <VII/4A>
  13- 18   A6     ---     NGC_IC   Identification from NGC/IC catalogs
  19- 24   A6     ---     UGC      Identification from UGC <VII/26D>
  25- 32   I8     ---     cz       []? Redshift from CfA redshift survey
  34- 35   I2     h       RAh     *Right ascension (1950.0)
  36- 37   I2     min     RAm      R.A.
  38- 42   F5.2   s       RAs      R.A.
      44   A1     ---     DE-      Declination sign, always blank
  45- 46   I2     deg     DEd     *Declination (1950.0)
  47- 48   I2     arcmin  DEm      Dec.
  49- 52   F4.1   arcsec  DEs      Dec.
      54   A1     ---     Blend   *[AM] Deblending flag
  55- 60   F6.2   mag     B25.5   *Isophotal magnitude B25.5.
  61- 66   F6.2   mag     Bt      *[]? Total magnitude Bt
  67- 72   F6.1   arcsec  a       *Semimajor axis at 25.5 mag/arcsec2
  73- 78   F6.1   arcsec  b       *Semiminor axis at 25.5 mag/arcsec2
  79- 82   I4     deg     PA       Position angle of major axis
  83- 88   F6.2   mag     SB25.5  *Mean surface brightness
  89- 94   F6.3   ---     cIndex   Concentration index defined by Eq.2 in paper
  95- 99   F5.1   arcsec  re25.5  *Effective radius
     101   A1     ---     Type    *[ELU] E=early, L=late, U=unclassified
     103   A1     ---     Star    *[*] Objects found to be blended stars
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Note on RAh, DEd:
  Accuracy of equatorial coordinates are 0.6 arcsec (rms).
Note on Blend:
  'A' and 'M' denote that these galaxies are deblended either
  automatically or manually. Manual deblending was done, when topology
  of the overlapping objects does not allow a unique solution, or when
  blended images are so large or complex that the deblending procedure
  requires too much computer memory.  Photometric parameters may not
  be accurate for galaxies with these flags.
Note on B25.5:
  The mean error is estimated to be 0.1 mag.
Note on Bt:
  The total magnitude is obtained by fitting the growth curve at the
  three faintest isophotal levels (dividing the intensity range
  between the peak and the threshold, 25.5 mag/s, into 20 levels) to
  the fiducial growth curves expected for the de Vaucouleurs profile
  (for E-type galaxies) and the exponential profile (for L-type
  galaxies), and then by reading the magnitude at 5 times the
  effective radius.  For U-type galaxies, we average the two values
  obtained from the two profiles.  Note that the definition of this
  total magnitude differs from that of BT (defined by RC2) commonly
  used in the literature; the offset between the two total magnitudes
  is found to be ~0.03 mag (Bt is brighter).  When a good fit is not
  obtained for the three points, Bt is not listed.
Note on a, b:
  Semimajor and semiminor axes at a surface brightness level of 25.5
  mag/arcsec^2.  7-10% errors are expected for both parameters.
Note on SB25.5:
  Mean surface brightness defined by equation (3) in the printed paper
  with muL = 25.5 mag/arcsec^2.
Note on re25.5:
  Effective radius that contains half the flux of B25.5.
Note on Type:
  Morphology: 'E' (early, E-S0) or 'L' (late, Sa-Im), according to the
  criterion discussed in section 2 of the printed paper. The
  confidence level of the coincidence with RC3 morphology (early or
  late) is 87.5%.  'U' denotes a galaxy which is unclassified.
Note on Star:
  The objects are marked by asterisks when they are classified as
  galaxies by the automated software, but turned out to be blended
  stars ("double" stars) upon visual inspection.
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Origin: AAS CD-ROM series, Volume 4, 1995           Lee Brotzman [ADS] 08-May-95

Modifications at CDS:
    The blank internal numbers in table1 (col. "Num") have been replaced
    by the actual number.
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(End)                                                         [CDS]  12-Jul-1995