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J/A+A/319/413       ROSAT detected quasars. I. (Brinkmann+ 1997)
Broad-band energy distribution of ROSAT detected quasars. I. Radio-loud objects.
      Brinkmann W., Yuan W., and Siebert J.
     <Astron. Astrophys. 319, 413 (1997)>
     =1997A&A...319..413B      (SIMBAD/NED BibCode)
ADC_Keywords: QSOs ; X-ray sources

Mission_Name: ROSAT

Keywords: galaxies: active - quasars: general - radio sources: galaxies -
          X-rays: galaxies

Abstract:
    We have compiled a sample of all quasars with measured radio emission
    from the Veron-Cetty - Veron catalogue (1993, VV93 VII/166) detected
    by ROSAT in the ALL-SKY SURVEY (RASS, Voges 1992), as targets of
    pointed observations, or as serendipitous sources from pointed
    observations as publicly available from the ROSAT point source
    catalogue (ROSAT-SRC, Voges et al. 1995). The total number of ROSAT
    detected radio quasars from the above three sources is 654 objects. 69
    of the objects are classified as radio-quiet using the defining line
    at a radio-loudness of 1.0, and 10 objects have no classification. The
    5GHz data are from the 87GB radio survey, the NED database, or from
    the Veron-Cetty - Veron catalogue. The power law indices and their
    errors are estimated from the two hardness ratios given by the SASS
    assuming Galactic absorption. The X-ray flux densities in the ROSAT
    band (0.1-2.4keV) are calculated from the count rates using the energy
    to counts conversion factor for power law spectra and Galactic
    absorption. For the photon index we use the value obtained for a
    individual source if the estimated 1 sigma error is smaller than 0.5,
    otherwise we use the mean value 2.14.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1           109      654   654 ROSAT detected radio quasars


See also:
       VII/188 : Quasars and Active Galactic Nuclei (7th Ed.)  (Veron+ 1996)
       IX/10   : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1996)
       IX/11   : ROSAT Source Catalog (Voges+ 1994)
 J/A+A/330/108 : ROSAT detected quasars. II. (Yuan+ 1998)


Byte-by-byte Description of file: table1

   Bytes Format  Units     Label     Explanations

   1-  9  A9     ---       IAU       IAU name of the object
      11  A1     ---       n_IAU     [ *?!] A flag for classification
  12- 29  A18    ---       Name     *Alternative name from VV93 <VII/166>
  31- 32  I2     h         RAh       Right ascension J2000 (hours)
  34- 35  I2     min       RAm       Right ascension J2000 (minutes)
  37- 40  F4.1   s         RAs       Right ascension J2000 (seconds)
      42  A1     ---       DE-       Declination sign
  43- 44  I2     deg       DEd       Declination J2000 (degrees)
  46- 47  I2     arcmin    DEm       Declination J2000 (')
  49- 50  I2     arcsec    DEs       Declination J2000 (")
  52- 56  F5.3   ---       z        *[]? Redshift
  58- 62  F5.2   mag       Vmag     *[]? Magnitude from VV93 <VII/166>
  64- 69  F6.3   Jy        F6cm      []? 6cm radio flux density
  71- 75  F5.2   ---       alpha_r   []? Radio spectral index
  77- 82  F6.2  10-12mW/m2 Fx        [] Unabsorbed X-ray flux density
  84- 88  F5.2  10-12mW/m2 e_Fx     *[] Error of X-ray flux density
  90- 93  F4.2   ---       Gamma    *[]? X-ray spectral photon index
  95- 98  F4.2   ---       E_Gamma  *[]? Positive error of photon index
 100-103  F4.2   ---       e_Gamma  *[]? Negative error of photon index
 105-106  A2     ---       Com      *[SP ] Notes on the X-ray detection
 108-109  A2     ---       Ref      *? Reference for the quoted spectral index

Note on Name:
    A '*' denotes a radio-quiet object;  a '?' mark indicates that
    no 5GHz flux is available; and a '!' means that the X-ray flux
    is probably corrupted by another source.
Note on z:
    A '0' as the 3rd decimal is mostly an artifact of the machine
    readable form of the catalogue. See the printed version of VV93 VII/166
    for the appropriate values.
Note on Vmag and e_Fx:
    One sigma statistical errors from count rates only
Note on Gamma:
    Spectral photon index in the ROSAT energy band for a power law
    fit (S=C*E**(-Gamma)) with Galactic absorption
Note on E_Gamma and e_Gamma:
    One sigma errors. If no error is given, the value of the error
    is unphysically large.
Note on Com:
    S: detected in RASS; P: detected in Pointed observations
Note on Ref:
       BP: Buehler P., et al. (1995A&A...295..309B)
       BH: Brunner H., et al. (1994A&A...287..436B)
       BW: Brinkmann W. & Siebert J. (1995A&A...300L..33B)
       EM: Elvis M., et al. (1994ApJ...422...60E)
       LA: Laor A., et al. (1994ApJ...435..611L)
       NM: Neumann M., et al. J/A+AS/106/303
       SN: Schartel N., et al. (1996A&A...307...33)
       SJ: Siebert J., et al., (1996A&A...307....8S)
       ZY: Zhang Y.F. & Marscher A.P., 1994  AIP Conf. Proc. 313, p.406


Acknowledgements: Weimin Yuan 


References:
    Brinkmann W, Siebert J., 1995, A&A, 300, L33  =1995A&A...300L..33B
    Brunner H. et al., 1994, A&A 287, 436         =1994A&A...287..436B
    Buehler P. et al., 1995, A&A 295, 309         =1995A&A...295..309B
    Elvis M. et al., 1994, ApJ 422, 60            =1994ApJ...422...60E
    Laor A. et al., 1994, ApJ 435, 611            =1994ApJ...435..611L
    Neumann M. et al., 1994, A&AS 106, 303        =Cat. J/A+AS/106/303
    Schartel N. et al., 1996, A&A 307, 33         =1996A&A...307...33
    Siebert J. et al., 1996, A&A 307, 8           =1996A&A...307....8S
    Veron-Cetty, M.-P. & Veron, P., 1993 (VV93)   =Catalogue VII/166
    Voges W., 1992, In: Proc. of the ISY Conference ''Space Science'',
                 ESA ISY-3, ESA Publications, p.9 (See catalogue IX/10)
    Voges W., et al., 1995, ROSAT NEWS No. 32     =Catalogue IX/11
    Zhang Y. F., Marscher A. P., 1994, AIP Conf. Proc. 313, p.406
(End)                                         Patricia Bauer [CDS]   27-Sep-1996