J/AJ/112/359          Galaxies in the Hubble Deep Field    (van den Bergh+ 1996)
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A morphological catalog of galaxies in the Hubble Deep Field
     van den Bergh S., Abraham R.G., Ellis R.S., Tanvir N.R., 
     Santiago B.X., Glazebrook K.G.
    <Astron. J. 112, 359 (1996)>
    =1996AJ....112..359V
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ADC_Keywords: Galaxies, photometry ; Morphology ; Photometry, ultraviolet
Mission_Name: HST

Abstract:
    We present a catalog of morphological and color data for galaxies with
    21<I_814<25mag in the Hubble Deep Field (Williams et al. 1996, in
    Science with the Hubble Space Telescope II). Galaxies have been
    inspected and (when possible) independently visually classified on the
    MDS and DDO systems. Measurements of central concentration and
    asymmetry are also included in the catalog. The fraction of
    interacting and merging objects is seen to be significantly higher in
    the Hubble Deep Field than it is among nearby galaxies. Barred spirals
    are essentially absent from the deep sample. The fraction of
    early-type galaxies in the Hubble Deep Field is similar to the
    fraction of early-types in the Shapley-Ames Catalog, but the fraction
    of galaxies resembling archetypal grand-design late-type spiral
    galaxies is dramatically lower in the distant HDF sample.

File Summary:
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 FileName    Lrecl    Records   Explanations
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ReadMe          80          .   This file
table1.dat     123        271   Catalog of HDF classifications
table1.tex     192        324   Modified AASTeX version of table1.dat
aj_pt_ha.sty    77        411   Modified version of aj_pt.sty AASTeX style file
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See also:
    J/AJ/112/1335 : Hubble Deep Field observations (Williams+ 1996)
    J/ApJ/453/48  : VI photometry of HST faint field galaxies (Driver+ 1995)
    
Byte-by-byte Description of file: table1.dat
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   Bytes Format  Units   Label    Explanations
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   2-  6  A5     ---     [VAE96]  Galaxy identification number
       7  A1     ---   n_[VAE96] *[*] Notes presence of Lyman discontinuity
  10- 11  I2     h       RAh      Right ascension, J2000
  13- 14  I2     min     RAm      Right ascension, J2000
  16- 20  F5.2   s       RAs      Right ascension, J2000
      22  A1     ---     DE-      Declination sign
  23- 24  I2     deg     DEd      Declination, J2000
  26- 27  I2     arcmin  DEm      Declination, J2000
  29- 32  F4.1   arcsec  DEs      Declination, J2000
  34- 38  I5     pix     Xpos    *X pixel coord. on v.2 "drizzled" image
  40- 44  I5     pix     Ypos    *Y pixel coord. on v.2 "drizzled" image
  46- 51  F6.2   mag     Imag     I_814 magnitude
  53- 58  F6.2   mag     U-B      ?=99.99 U_300-B_450 color index
  60- 64  F5.2   mag     B-V      B_450-V_606 color index
  66- 70  F5.2   mag     V-I      V_606-I_814 color index
  72- 76  F5.2   ---     Asym     Asymmetry
  78- 82  F5.2   ---     Conc    *Central concentration measure
      85  A1     ---     RSE     *[EPS] Visual classification by RSE
  88- 89  A2     ---     vdB     *Visual classification by vdB
  92-115  A24    ---     Desc    *Galaxy class. by vbD on DDO system
 117-123  A7     ---     Note    *Notes on classification
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Note on n_[VAE96]:
  The 42 high-z candidates with red UV-optical colors (U_300-B_450>-0.2)
  and blue optical-near IR colors (V_606-I_814>-0.6), indicating the
  possible presence of the Lyman discontinuity in the U_300-band
  spectral energy distribution (Steidel et al., 1996ApJ...462L..17S),
  are indicated by an asterisk in this column.
Note on Xpos, Ypos:
  Pixel coordinates on the version 2 "drizzled" HDF frames released
  by STScI. The first digit in the ID numbers corresponds to the
  WF/PC2 chip on which the object lies. Note also that positions
  were originally measured on the version 1 drizzled images, and
  were converted to version 2 coordinates using (x,y)_v1=76+(x,y)+v2
  (M. Dickinson, private communication).
Note on Conc:
  Color concentration measure from Abraham et al., (1996MNRAS.279L..47A).
Note on RSE:
  Visual classification by RSE into three large bins
  (E = elliptical, S=spiral, P=irregular/peculiar/merger).
Note on vdB:
  Visual classification by vdB on the numerical "MDS system" used by
  RSE to classify the data in Glazebrook et al, (1995MNRAS.275L..19G)
  and described in detail in Abraham et al. (1996ApJS..107....1A).
Note on Desc:
  Galaxy classification by vdB on the DDO system. All uncertain
  classifications are followed by a colon.
Note on Note:
  Notes on the DDO classifications and remarks on the colors of individual
  galaxies are given:
  Notes on classifications:
     a: possibly a very distant Sc viewed in UV
     b: asymmetrical
     c: companion to 2-220
     d: has faint companions
     e: companion to 2-299
     f: good example of merger
     g: has companions
     h: has companion
     i: has bright companions
     j: companion to 3-267
     k: has bright bar-like core
     l: has bright companion
     m: part of spiral (?) arm of 3-296
     n: companion to 3-426
     o: star off center
     p: companion to 3-426
     q: companion to 3-517
     r: chain galaxy?
     s: interacting with 3-606
     t: companion to 4-105
     u: companion to 4-387
          v: gravitational lens?
     w: companion to 4-655
     x: red nucleus
     y: blue outer knots
     z: Ir? companion vR
    aa: "tadpole" with R head and B tail
    ab: Pec component vB
    ac: blue compact companion
    ad: has one blue arm
    ae: one component R
    af: triple merger, all components B
    ag: or tadpole galaxy
    ah: E1 galaxy is R, companion is B
  Notes on colors of individual galaxies:
    vB: very blue
     B: blue
     R: red
    vR: very red
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Origin: AAS CD-ROM series, Volume 7, 1996         Lee Brotzman [ADS] 03-Oct-1996
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(End)                                                         [CDS]  30-Jan-1997