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J/MNRAS/312/442     UV-selected galaxy redshift survey. II.  (Sullivan+, 2000)
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An ultraviolet-selected galaxy redshift survey.
II. The physical nature of star formation in an enlarged sample.
    Sullivan M., Treyer M.A., Ellis R.S., Bridges T.J., Milliard B., Donas J.
   <Mon. Not. R. Astron. Soc. 312, 442 (2000)>
   =2000MNRAS.312..442S
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ADC_Keywords: Photometry, ultraviolet ; Redshifts ; Spectroscopy
Keywords: surveys - galaxies: evolution -
          galaxies: luminosity function, mass function - galaxies: starburst -
          cosmology: observations - ultraviolet: galaxies

Abstract:
    We present further spectroscopic observations for a sample of galaxies
    selected in the vacuum ultraviolet (UV) at 2000{AA} from the FOCA
    balloon-borne imaging camera of Milliard et al. (1992A&A...257...24M).
    This work represents an extension of the initial study by Treyer et
    al. (Cat. <J/MNRAS/300/303>). Our enlarged catalogue contains 433
    sources (~3 times as many as in our earlier study) across two FOCA
    fields. 273 of these are galaxies, nearly all with redshifts z~0-0.4.
    Nebular emission-line measurements are available for 216 galaxies,
    allowing us to address issues of excitation, reddening and
    metallicity. The UV and H{alpha} luminosity functions strengthen our
    earlier assertions that the local volume-averaged star formation rate
    is higher than indicated from earlier surveys. Moreover, internally
    within our sample, we do not find a steep rise in the UV luminosity
    density with redshift over 0<z<0.4. Our data are more consistent with
    a modest evolutionary trend, as suggested by recent redshift survey
    results. Investigating the emission-line properties, we find no
    evidence for a significant number of AGN in our sample; most
    UV-selected sources to z~0.4 are intense star-forming galaxies.

File Summary:
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 FileName      Lrecl  Records   Explanations
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ReadMe            80        .   This file
table7.dat       108      346   The updated UV-z catalogue
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See also:
   J/MNRAS/300/303 : UV-selected galaxy redshift survey (Treyer+, 1998)

Byte-by-byte Description of file: table7.dat
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   Bytes Format Units   Label     Explanations
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   1- 14  A14   ---     Sample    Sample name (1)
      16  I1    ---     OC        [1-3] Number of optical counterparts (2)
  18- 19  I2    h       RAh       Right ascension (1950) (3)
  21- 22  I2    min     RAm       Right ascension (1950) (3)
  24- 28  F5.2  s       RAs       Right ascension (1950) (3)
      30  A1    ---     DE-       Declination sign (1950) (3)
  31- 32  I2    deg     DEd       Declination (1950) (3)
  34- 35  I2    arcmin  DEm       Declination (1950) (3)
  37- 40  F4.1  arcsec  DEs       Declination (1950) (3)
  42- 46  F5.2  mag     UV        UV (around 200nm) magnitude
  48- 53  F6.4  ---     z         ? Redshift
  55- 59  F5.1  0.1nm   EW[OII]   ? [O II] rest-frame equivalent width
  61- 66  F6.2  0.1nm   EW(Ha)    ? H{alpha} rest-frame equivalent width
  68- 71  F4.1  0.1nm   EW(Hb)    ? H{beta} rest-frame equivalent width
      73  I1    ---     Type      ? Galaxy T type (4)
  75- 80  F6.2  mag     UVMag     ? Absolute UV magnitude
  82- 86  F5.2  mag     (UV-B)0   ? Rest-frame- and dust-corrected
                                     (UV-B) colour index
  88-117  A30   ---     Com       Comments
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Note (1): Abell 1367, Paper I (Cat. <J/MNRAS/300/303>), QSO/AGN, SA 57 and Stars
Note (2): Number of optical counterparts on the POSS plates within 10 arcsec.
Note (3): The position (1950) is that of the closest optical counterpart.
Note (4): Galaxy type, classified on the basis of UV-B colour;
          T=1-8 refers to types E, S0, Sa, Sb, Sc, Sd, SB1 and SB2.
          All colours are rest-frame- and dust-corrected.
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History: From MNRAS electronic version
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(End)                         James Marcout, Patricia Bauer [CDS]    31-May-2000