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/table2(c)Properties of SDSS quasars detected by Chandra (1135 rows)
2.J/ApJ/690/644/table3(c)Properties of SDSS quasars with Chandra limits (347 rows)
Help Xmatch is

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortJoin tables
more join
Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (ALL)ObjID (char) SDSS-DR6 ObjID (meta.id)
   (ALL)imag mag SDSS i band PSF magnitude (dereddened) (phot.mag;em.opt.I)
   (ALL)zph  Photometric redshift (src.redshift.phot)
   (ALL)pr(zph)   [0,1] Photometric redshift probability (stat.fit.goodness)
   (ALL)zph0  Photometric redshift lower limit (src.redshift.phot)
   (ALL)zph1  Photometric redshift upper limit (src.redshift.phot)
   (ALL)zbest  Best redshift (src.redshift.phot)
   (ALL)r_zbest (char) Reference if spectroscopic redshift (Note G1)   (meta.ref;pos.frame)
  (1)CXOMP (char) ChaMP X-ray source name (JHHMMSS.s+DDMMSS) (meta.id;meta.main)
  (1)ChaMPid (char) Internal ChaMP source ID (Note 2)   (meta.id;obs)

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

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

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)NED (char) ask the NED data-base about this object
   (ALL)RAJ2000 deg (i) SDSS source right ascension (J2000) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 deg (i) SDSS source declination (J2000) (pos.eq.dec;meta.main)
  (2)ObsID  Chandra observation ID (meta.id;obs)
  (2)ccdid  ACIS CCD ID (meta.id;instr.det)
  (2)Xlim ct 90% Counts upper limit the 0.3-8keV range (Note 1)   (phot.count;em.X-ray)
  (2)SimbadName (char) Designation understandable by the Simbad data-base (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  
elapse time 1