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J/ApJS/183/17
 The SDSS DR5/XMM-Newton quasar survey (Young+, 2009)
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img(gal)
1.J/ApJS/183/17/XqsoXMM properties of SDSS quasars (tables 1 and 2 of paper) (792 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  SDSS (char) SDSS object name (HHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  DR5  Display the SDSS-DR5 data for this quasar (meta.ref.url)
  XMMid  XMM Observation ID (meta.id;obs)
  z  Redshift (src.redshift)
  NHgal 10+20/cm2Galactic hydrogen column density in the direction of the source (phys.columnDensity;pos.galactic)
  SNRX  X-ray signal-to-noise (stat.snr)
  ExpTime ks "Live" exposure time of X-ray observation (Note 1)   (time.duration;obs;em.X-ray)
  OAA arcmin Off-axis angle (instr.offset)
  Cnet ct Net source counts (phot.count;em.X-ray)
  Cbkg ct Background counts; scaled to source extraction region (instr.background)

ALL cols
    
   
  RL (char) [012] Radio-loud flag (Note 2)   (meta.code.error)
  BAL (char) [01] Broad absorption line (BAL) flag (Note 3)   (meta.code)
  Simbad  ask the Simbad data-base about this object
  NED  ask the NED data-base about this object
  FsoftO mW/m2 (n) Observed-frame flux in 0.5-2keV band (phot.flux;em.X-ray)
  FhardO mW/m2 (n) Observed-frame flux in 2-10keV band (phot.flux;em.X-ray)
  FsoftR mW/m2 (n) Rest-frame flux in 0.5-2keV band (phot.flux;em.X-ray)
  FhardR mW/m2 (n) Rest-frame flux in 2-10keV band (phot.flux;em.X-ray)
  LsoftR 10-7W (n) Rest-frame luminosity in 0.5-2keV band (Note 1)   (phys.luminosity;em.X-ray)
  LhardR 10-7W (n) Rest-frame luminosity in 2-10keV band (Note 1)   (phys.luminosity;em.X-ray)
  aox  (n) Optical-to-X-ray spectral index (Note 2)   (spect.index)
  Xfit  Flag indicating X-ray fit (Note 3)   (meta.code)
  Gam  (n) X-ray photon index for best-fit model (spect.index)
  Gam.l  (n) The 90% lower value of X-ray photon index interval (spect.index)
  Gam.u  (n) The 90% upper value of X-ray photon index interval (spect.index)
  NH 10+22/cm2(n) Intrinsic X-ray absorption (phys.absorption;em.X-ray)
  NH.l 10+22/cm2(n) The 90% lower value on intrinsic X-ray absorption interval (phys.columnDensity)
  NH.u 10+22/cm2(n) The 90% upper value of intrinsic X-ray absorption interval (phys.columnDensity)
  chi2  Chi-square value for best-fit model (stat.value)
  dof  Degrees of freedom for best-fit model (stat.fit.dof)
  _RA deg Position (from SDSS name) (right ascension part) (pos.eq.ra;meta.main)
  _DE deg Position (from SDSS name) (declination part) (pos.eq.dec;meta.main)

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(n) indicates a possible blank or NULL column  
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