VizieR

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VizieR

  
J/ApJ/450/51
  X-rays from large optical QSO sample (Green+ 1995)
ReadMe+ftp
1995ApJ...450...51G
Similar Catalogs
Post annotation 		  
1.J/ApJ/450/51/table1Raw data and luminosities of detected LBQS/RASS QSOs (908 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. ((unassigned);meta.version;arith.diff;phys.veloc)
  Name (char) Name of the LBQS QSO ((unassigned);meta.version;arith.diff;spect.line.veloc;arith)
  z  Redshift ((unassigned);meta.version;arith.diff;pos.parallax;meta.main)
  BJmag mag B_J magnitude ((unassigned);meta.version;arith.diff;stat.filling;(unassigned);(unassigned))
  A(B) mag Extinction (phot.limbDark;instr.det.qe;stat.min;phys.dust)
  NH 10+20cm-2Galactic hydrogen column density ((unassigned);(unassigned);(unassigned);(unassigned))
  Csrc  RASS source counts ((unassigned);meta.version;arith.diff;time.duration;(unassigned);(unassigned))
  e_Csrc  Csrc uncertainty ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  Cbkg  RASS source counts normalized to the source aperture area (src.class.starGalaxy;src.veloc.component;arith.factor;time.duration;(unassigned);(unassigned))
  e_Cbkg  CBkg uncertainty (pos.galactic.lon;spect;arith.grad;time.age;meta.main)
  ExpTime s RASS exposure time ((unassigned);meta.version;arith.diff;(unassigned);(unassigned);meta.main)
  l_log(LX) (char) Lx limiting character (src.class.starGalaxy;phys.atmol.crossSection;(unassigned);pos.galactic.lon)
  log(LX) [10-7W] Logarithm of X-ray luminosity ((unassigned);(unassigned);(unassigned);(unassigned);(unassigned);(unassigned))
  log(Lopt) [10-7W] Logarithm of optical luminosity ((unassigned);(unassigned);(unassigned);(unassigned))
  l_Alp(oX) (char) Alp(oX) limiting character ((unassigned);obs.atmos;arith.factor;pos.galactic.lon)
  Alp(oX)  Slope of a hypothetical power law connecting 250nm and 2 keV ((unassigned);(unassigned);(unassigned);pos.bodyrc.lon;meta.main)
  Notes (char) Notes (Note)   ((unassigned);(unassigned);(unassigned);phys.veloc.orbital)

ALL cols		    
 (i)indexed column
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usage  Display UCD1+    UCD1  

The following problems were encountered in this VizieR run:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846598095 Where phase=3 and catid=14500051
**** 
**** --POSTGRES MSG db=1
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****ERROR:  invalid page in block 0 of relation base/16403/6104
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR4177764.err (2026-10-29T14:08:14)
-3
-source=J/ApJ/450/51
-ref=VIZ6ae3534f3fbf64
elapse time 1