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J/ApJ/551/111       HDF early-type and spiral galaxies       (Ellis+, 2001)
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The relative star formation histories of spiral bulges and elliptical galaxies
 in the Hubble Deep Fields.
    Ellis R.S., Abraham R.G., Dickinson M.
   <Astrophys. J. 551, 111 (2001)>
   =2001ApJ...551..111E
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ADC_Keywords: Galaxies, photometry ; Redshifts ; Morphology ;
              Photometry, infrared
Keywords: galaxies: bulges - galaxies: elliptical and lenticular, cD -
          galaxies: evolution - galaxies: high-redshift - galaxies: structure
Mission_Name: HST

Description:
    We analyze the internal optical colors of a complete sample of
    I_814_<24mag early-type and spiral galaxies from the northern and
    southern Hubble Deep Fields (HDF). The subset of galaxies in the
    HDF-North are also investigated in the near-infrared using NICMOS
    photometry. We compare the central (inner 5% radius) colors of those
    spirals with clearly visible bulges with the integrated colors of
    ellipticals in our sample.

File Summary:
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 FileName      Lrecl  Records   Explanations
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ReadMe            80        .   This file
table1.dat       122      255   HDF North and South Sample
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See also:
   J/ApJ/513/34   : HDF photometric redshifts catalog (Fernandez-Soto+, 1999)
   J/AJ/120/2206  : NTT, HDF-S and HDF-N photometric redshifts (Fontana+, 2000)
   J/A+A/364/517  : HDF-N spiral and irregular galaxies (Rodighiero+, 2000)
   J/A+AS/145/111 : HDF-South catalogue of galaxies (Volonteri+, 2000)
   J/AJ/119/486   : HDF-S: STIS imaging (Gardner+, 2000)
   J/AJ/120/2747  : HDF-South WFPC2 observations (Casertano+, 2000)

Byte-by-byte Description of file: table1.dat
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   Bytes Format Units   Label     Explanations
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   1- 24  A24   ---    [EAD2001]  IAU designation from STScI SExtractor-based
                                   catalogs (1)
  26- 30  F5.2  mag     I814      I814 SExtractor mag_best_ from STScI catalogs
  32- 36  F5.2  mag     H160      ? H-band total magnitude
  38- 43  F6.3  ---     z         Redshift (-1.000 when spectroscopically
                                   confirmed star)
      44  A1    ---   n_z         [)] ): photometric redshift
  46- 50  F5.2  mag     V-I       V-I colour index for central 5% of galaxy
  53- 56  F4.2  mag     V-I2      V-I colour index of total galaxy based on
                                   elliptical apertures defined from I-band
                                   image moments.
  58- 61  F4.2  mag     J-H       ? J-H colour index for central 5% of galaxy
  63- 66  F4.2  mag     J-H2      ? J-H colour index of total galaxy
  68- 71  F4.2  ---     e         ? 1-axial ratio of galaxy
  73- 76  F4.2  ---     Conc      Central concentration
  78- 81  F4.2  ---     Asym      Asymmetry
  83- 89  A7    ---     Class     Automated classification
  91- 92  I2    ---     RSE       [-2/9] Ellis numerical classification (2)
  94-100  A7    ---     RGA       Abraham visual classification
 102-109  A8    ---     Bulge?    Flag indicating the presence of a well-defined
                                   bulge (based on visual inspection)
 111-118  A8    ---     Blend?    Flag indicating degree of object blending
                                   (based on visual inspection)
 120-126  A7    ---     Pec?      Flag indicating clear galaxy peculiarity aside
                                   from blending/superposition
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Note (1): The designations are in the form:
     HDFS_JHHMMSS.ss-DDMMSS.s ([EAD2001] HDFS JHHMMSS.ss+DDMMSS.s in Simbad)
  or HDFN_JHHMMSS.ss-DDMMSS.s ([EAD2001] HDFN JHHMMSS.ss+DDMMSS.s in Simbad)
Note (2): Classifications:
     -2 = star
     -1= compact
      0 = E
      1 = E/S0
      2 = S0
      3 = Sab
      4 = S
      5 = Scdm
      6 = Ir
      7 = peculiar
      8 = merger
      9 = defect
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History:
    From electronic version of the journal
================================================================================
(End)                         James Marcout, Patricia Bauer [CDS]    30-Aug-2001