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J/A+A/340/371       Quasar polarization                      (Hutsemekers+ 1998)
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Polarization properties of a sample of broad absorption line and
gravitationally lensed quasars
       Hutsemekers D., Lamy H., Remy M.
      <Astron. Astrophys. 340, 371 (1998)>
      =1998A&A...340..371H      (SIMBAD/NED BibCode)
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ADC_Keywords: QSOs ; Polarization
Keywords: polarization - galaxies: quasars: absorption lines -
         galaxies: quasars: general - cosmology: gravitational lensing

Description:
    Table 2 contains optical (V) polarimetric measurements for 42
    optically selected QSOs including 29 broad absorption line QSOs.
    Table 3 contains a series of spectral indices characterizing the broad
    absorption line QSOs.

File Summary:
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  FileName   Lrecl  Records   Explanations
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ReadMe          80        .   This file
table2.dat      67       42   Polarimetric results
table3.dat      68       29   BAL QSO spectral characteristics
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See also:
   J/A+A/332/410 : Quasar polarization (Hutsemekers 1998)
   J/A+AS/142/451 : Optical Polarization of 47 QSOs (Lamy+, 2000)

Byte-by-byte Description of file: table2.dat
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   Bytes Format Units   Label     Explanations
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   1-  9  A9    ---     Name      Quasar name (from 1950 position)
  11- 15  F5.3  ---     z         Redshift
      17  I1    ---     Type          [1/6] Object type (1)
      18  I1    ---     Note          [0/1] 1: objects identified as true or
                                            possible gravitationally lensed QSOs
  20- 24  F5.2  %       Q         Normalized Stokes parameter Q
  26- 29  F4.2  %     e_Q         Uncertainty of Normalized Stokes parameter Q
  31- 35  F5.2  %       U         Normalized Stokes parameter U
  37- 40  F4.2  %     e_U         Uncertainty of Normalized Stokes parameter U
  42- 45  F4.2  %       Pol       Polarization degree
  47- 50  F4.2  %     e_Pol       Uncertainty of polarization degree
  52- 55  F4.2  %       Pold      Debiased polarization degree
  57- 60  F4.2  %       Poli      Interstellar polarization
  62- 64  I3    deg     PA        Polarization position angle
  66- 67  I2    deg   e_PA        ? Uncertainty of polarization position angle
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Note (1): Object Type:
           1: non-BAL QSOs + one intermediate object
           2: HIBAL QSOs
           3: Strong LIBAL QSOs
           4: Weak LIBAL QSOs
           5: Marginal LIBAL QSOs
           6: unclassified BAL QSOs
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Byte-by-byte Description of file: table3.dat
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   Bytes Format Units   Label         Explanations
--------------------------------------------------------------------------------
   1-  9  A9    ---     Name          Quasar name (from 1950 position)
      11  I1    ---     Type          [1/6] Object type (1)
      12  I1    ---     Note          [0/1] 1: objects identified as true or
                                            possible gravitationally lensed QSOs
  14- 18  I5    km/s    BI            Balnicity index (2)
  20- 24  F5.2  ---     DI            Detachment index (3)
  26- 29  I4    km/s    HWHM(CIV)     ? CIV Half Width at Half Maximum
  31- 34  I4    km/s    HWHM(CIII)    ? CIII] Half Width at Half Maximum
  36- 39  F4.1  0.1nm   EW(CIV)       ? CIV equivalent width
  41- 44  F4.1  0.1nm   EW(CIII)      ? CIII] equivalent width
  46- 50  F5.2  0.1nm   EW(FeII2400)  ? FeII 2400 equivalent width
  52- 56  F5.2  0.1nm   EW(FeII2070)  ? FeII 2070 equivalent width
  58- 62  F5.2  ---     Bcont         Continuum slope B
  64- 67  F4.2  ---     Rcont         Continuum slope R
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Note (1): Object Type:
           1: non-BAL QSOs + one intermediate object
           2: HIBAL QSOs
           3: Strong LIBAL QSOs
           4: Weak LIBAL QSOs
           5: Marginal LIBAL QSOs
           6: unclassified BAL QSOs
Note (2): The balnicity index is a modified velocity equivalent width of the
           C IV broad absorption line. See Weymann et al., 1991ApJ...373...23W.
Note (3): The detachment index is the degree of detachment of the absorption
           line relative to the emission one.
           See Weymann et al., 1991ApJ...373...23W.
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Acknowledgements: Damien Hutsemekers <hutsemek@astro.ulg.ac.be>
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(End)        Hutsemekers [Liege University], Patricia Bauer [CDS]    13-Oct-1998