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/762/L19
  Quasar pairs spectroscopy (Prochaska+, 2013)
ReadMe+ftp
2013ApJ...762L..19P
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/762/L19/table1Sample quasar pairs (74 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)
  FName (char) Foreground QSO identifier (JHHMMSS.ss+DDMMSS.s) ((unassigned);(unassigned);(unassigned);spect.line.veloc;arith)
  zfg   [1.6/3.3] Foreground Quasar redshift estimate ((unassigned);(unassigned);(unassigned);pos.parallax;arith.diff;meta.main)
  e_zfg   [0.002/0.02] Uncertainty in zfg ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  BName (char) Background QSO identifier (JHHMMSS.ss+DDMMSS.s) ((unassigned);(unassigned);arith;src.class.color)
  zbg   [1.6/3.8] Background Quasar redshift estimate ((unassigned);obs.atmos.extinction;arith.factor;pos.parallax;arith.diff;meta.main)
  rho kpc [31/299] Impact parameter {rho} (phot.limbDark;instr.det.noise;stat.min;phys.polarization;meta.main)
  Sep arcsec Separation {theta} between the foreground and background quasars ((unassigned);(unassigned);(unassigned);em.radio.6-12GHz;instr.background)
  Inst (char) Spectrum instrument identifier (SDSS, BOSS, GMOS, LRISb or MagE) ((unassigned);(unassigned);(unassigned);spect.line.veloc;meta.code.qual)
  zLya   [1.6/3.3] Redshift characterizing Ly{alpha} absorption in the spectrum of the background QSO ((unassigned);meta.version;arith.diff;pos.parallax;arith.diff;meta.main)
  f_logNHI (char) Limit flag on logNHI ((unassigned);(unassigned);(unassigned);pos.eq.dec)

ALL cols		    
 (i)indexed column
  logNHI [cm-2] [18/21.2] Log H I column density ((unassigned);stat.error;arith.factor;(unassigned))
  e_logNHI [cm-2] (n) [0.2/0.4] Uncertainty in logNHI ((unassigned);meta.version;arith.diff;time.age;meta.main)
  f_W1334 (char) Limit flag on W1334 ((unassigned);(unassigned);(unassigned);pos.eq.dec)
  W1334 0.1nm (n) [0.04/2.8] Equivalent width of CII 1334Å line ((unassigned);meta.version;arith.diff;phys.at.moment.magnetic;meta.main)
  e_W1334 0.1nm (n) [0.02/0.3] Uncertainty in W1334 ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  f_W1548 (char) Limit flag on W1548 ((unassigned);spect.dopplerVeloc.opt;arith.factor;pos.eq.dec)
  W1548 0.1nm (n) [0.09/2.3] Equivalent width of CIV 1548Å line (stat.fit.residual;instr.beam;stat.min;phys.at.moment.magnetic;meta.main)
  e_W1548 0.1nm (n) [0.01/0.3] Uncertainty in W1548 ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  OT  (n) [-1/1] Optical thickness flag at Lyman limit: -1=thin, 1=thick, 0=ambiguous (time.epoch;pos.wcs.crpix;arith.grad;pos.eq.dec)
  Sloan  Display the online SDSS data for the foreground QSO (pos.cylindrical;stat.Fourier.amplitude;(unassigned);pos.geocentric)
  SimbadName (char) Designation understandable by the Simbad data-base ((unassigned);meta.version;arith.diff;spect.line.veloc)
  NED  ask the NED data-base about this object ((unassigned);(unassigned);(unassigned);pos.geocentric)
  _RA deg Positions from Foreground quasar name (right ascension part) ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  _DE deg Positions from Foreground quasar name (declination part) ((unassigned);(unassigned);(unassigned);(unassigned);arith)

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  

The following problems were encountered in this VizieR run:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846433404 Where phase=3 and catid=17629019
**** 
**** --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/VR63081.err (2026-10-27T16:23:23)
-3
-source=J/ApJ/762/L19
-ref=VIZ6ae0cffbf669
elapse time 1