J/MNRAS/251/482   A spectroscopic survey of faint QSOs  (Boyle+ 1991)
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A spectroscopic survey of faint QSOs
     BOYLE B.J., JONES L.R., SHANKS T.
    
    =1991MNRAS.251..482B
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Summary:
    Positions, magnitudes and identifications are presented for a complete
    sample of 236 faint (B<~22 mag) stellar objects based on spectroscopic
    observations of multicolour selected samples from deep photographic
    plates. Similar information is also provided for a further 98 objects
    not included in the complete sample. The survey covers an effective
    area of 0.85 square degrees and contains 66 newly identified QSOs. In
    total, 93 per cent of the complete sample has been identified and
    unambiguous redshifts have been obtained for 85 per cent of the QSOs.
    The integral surface density of low-redshift (z<2.2) QSOs at B<22 mag
    is estimated to be 67.6+/-8.8 per square degrees, confirming the
    strong flattening previously observed in the QSO number-magnitude
    relation at B>~19.5 mag. At the same magnitude limit, the integral
    surface density of QSOs in the range 2.2 35 kpc) blue
    horizontal branch stars are also identified.

See also : J/MNRAS/243/1


File Summary:
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 FileName    Lrecl    Records    Explanations
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ReadMe          80          .    This file
table6          96         66    The QSO catalogue
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Byte-by-byte Description of file: table6
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   Bytes Format  Units   Label    Explanations
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   1- 24  A24    ---     FC       Field Centre
      25  A1     ---     note     [*!]
                                  *: Not included in the complete sample
                                  !: Observed with both FORS and IPCS on the AAT
  26- 33  A8     ---     Name     QSO designation in this survey
  35- 36  I2     h       RAh      Right ascension 1950
  38- 39  I2     min     RAm      Right ascension 1950
  41- 44  F4.1   s       RAs      Right ascension 1950
      46  A1     ---     DE-      Declination sign
  47- 48  I2     deg     DEd      Declination 1950
  50- 51  I2     arcmin  DEm      Declination 1950
  53- 54  I2     arcsec  DEs      Declination 1950
  56- 60  F5.2   mag     bj       bj magnitude (bj = B-0.23(B-V))
  62- 66  F5.2   mag     U-bj     U-bj colour
  68- 71  F4.2   mag     bj-rf    bj-rf colour (rj = R- 0.06(B-R))
  73- 77  F5.3   ---     z        redshift
      80  A1     ---     q_z      [123] Estimate of the redshift quality (1)
  83- 85  I3     ---     Lyalpha  []? Rest equivalent width of the emission
                                      lines of Lyalpha + N V
  87- 89  I3     ---     CIV      []? Rest equivalent width of the emission
                                       lines of CIV
  91- 93  I3     ---     CIII]    []? Rest equivalent width of the emission
                                      lines of CIII]
  95- 96  I2     ---     MgII     []? Rest equivalent width of the emission
                                      lines of Mg II
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Note(1) Redshift quality:
      1: good redshift
      2: probable redshift
      3: uncertain redshift
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Courtesy: Brian Boyle 
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(End)                                  Patricia Bauer [CDS]   30-Jun-1994