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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/ApJ/690/644
 Properties of SDSS QSOs in the ChaMP (Green+, 2009)
Post annotation
img(gal)
1.J/ApJ/690/644/table2Properties of SDSS quasars detected by Chandra (1135 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)
  ObjID (char) SDSS-DR6 ObjID (meta.id)
  imag mag SDSS i band PSF magnitude (dereddened) (phot.mag;em.opt.I)
  zph  Photometric redshift (src.redshift.phot)
  pr(zph)   [0,1] Photometric redshift probability (stat.fit.goodness)
  zph0  Photometric redshift lower limit (src.redshift.phot)
  zph1  Photometric redshift upper limit (src.redshift.phot)
  zbest  Best redshift (src.redshift.phot)
  r_zbest (char) Reference if spectroscopic redshift (Note G1)   (meta.ref;pos.frame)
  CXOMP (char) ChaMP X-ray source name (JHHMMSS.s+DDMMSS) (meta.id;meta.main)
  ChaMPid (char) Internal ChaMP source ID (Note 2)   (meta.id;obs)

ALL cols
    
   
  OAA arcmin Chandra off-axis angle (instr.offset)
  Xct ct Net counts in the 0.3-8keV range (phot.count;em.X-ray)
  e_Xct  RMS uncertainty on Xct (stat.error)
  Exp ks Vignetting-corrected exposure time (time.duration;obs.exposure)
  nHgal 10+20cm-2Galactic absorbing HI column density (phys.columnDensity)
  nHintr 10+22cm-2(n) Best fit intrinsic absorbing HI column density (phys.columnDensity)
  nHup 10+22cm-2(n) 90% upper error limit on nHintr (phys.columnDensity)
  nHlo 10+22cm-2(n) 90% lower error limit on nHintr (phys.columnDensity)
  Gam  X-ray photon energy index Γ (spect.index)
  Gam.up  90% lower error limit on Γ (spect.index)
  Gam.lo  90% lower error limit on Γ (spect.index)
  Fxb [mW/m2] 0.5-8keV flux in erg/cm2/s (log10) (phot.flux;em.X-ray)
  logLx [10-7W] 2keV luminosity in erg/s (log10) (phys.luminosity;em.X-ray)

ALL cols
    
(n) indicates a possible blank or NULL column  
  logL2500 [10-7W] 2500Å luminosity in erg/s (log10) (phys.luminosity)
  aox  Optical/X-ray Spectral index (Note G3)   (phys.luminosity;arith.ratio)
  F20cm mJy (n) 1.4GHz FIRST radio flux density (Note 3)   (phot.flux.density;em.radio.750-1500MHz)
  n_F20cm   [0/1] 1 if multiple/extended radio morphology (meta.note)
  RL mag Radio loudness (Note G4)   (phot.flux;arith.ratio)
  Cl   [0/3] Spectral classification (Note G5)   (src.class)
  Target   [0/1] is source a Chandra PI target? (meta.note)
  Comm (char) Comments (meta.note)
  ChaMP  Display the ChaMP X-ray point source catalog (Kim et al. 2007, Cat. J/ApJS/169/401) (meta.ref.url)
  DR7Q  Display the SDSS-DR7 quasar catalog (Schneider et al. 2010, Cat. VII/260) (meta.ref.url)
  DR6  Details from SDSS-DR6 (Adelman-McCarthy+, 2007, Cat. II/282 (meta.ref.url)
  Sloan  Display the SDSS data for this quasar (meta.ref.url)
  Simbad  ask the Simbad data-base about this object
  NED  ask the NED data-base about this object
  RAJ2000 deg SDSS source right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg SDSS source declination (J2000) (pos.eq.dec;meta.main)

ALL cols
    
(n) indicates a possible blank or NULL column  
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