VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
J/ApJ/690/644
  Properties of SDSS QSOs in the ChaMP (Green+, 2009)
ReadMe+ftp
2009ApJ...690..644G
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/690/644/table3Properties of SDSS quasars with Chandra limits (347 rows)

Simple ConstraintList Of Constraints
 
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)
  RAJ2000 deg (i) SDSS source right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) SDSS source declination (J2000) (pos.eq.dec;meta.main)
  imag mag SDSS i band PSF magnitude (dereddened) (phot.mag;em.opt.I)
  zph  Photometric redshift (src.redshift.phot)
  pr(zph)  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 (Note G1)   (src.redshift.phot)
  r_zbest (char) [S ] Reference if spectroscopic redshift (Note G1)   (meta.ref;pos.frame)

ALL cols		    
 (i)indexed column
  ObsID  Chandra observation ID (meta.id;obs)
  ccdid  ACIS CCD ID (meta.id;instr.det)
  OAA arcmin Chandra off-axis angle (instr.offset)
  Xlim ct 90% Counts upper limit the 0.3-8keV range (Note 1)   (phot.count;em.X-ray)
  Exp ks Vignetting-corrected exposure time (time.duration;obs.exposure)
  nHgal 10+20cm-2Galactic absorbing HI column density (Note G2)   (phys.columnDensity;pos.galactic)
  Fxb [mW/m2] Upper limit 0.5-8keV flux in erg/cm2/s (log10) (phot.flux;em.X-ray)
  logLx [10-7W] upper limit 2keV luminosity in erg/s (log10) (phys.luminosity;em.X-ray)
  logL2500 [10-7W] 2500Å luminosity in erg/s (log10) (phys.luminosity)
  aox  Lower limit to optical/X spectral index (Note G3)   (phys.luminosity;arith.ratio)
  F20cm mJy (n) 1.4GHz integrated flux density from FIRST (phot.flux.density;em.radio.750-1500MHz)
  RL mag Radio loudness (Note G4)   (phot.flux;arith.ratio)
  Cl   [0,3] Spectral classification (Note G5)   (src.class)
  Comm (char) Comments (meta.note)
  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)
  SimbadName (char) Designation understandable by the Simbad data-base (meta.id)
  NED  ask the NED data-base about this object

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  
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