VizieR

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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/776/136
  QPQ VI. HI absorption of z~2 quasars (Prochaska+, 2013)
ReadMe+ftp
2013ApJ...776..136P
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/776/136/qpq6Quasars Probing Quasars VI (QPQ6) redshifts and HI measurements (tables 1, 3 and 4) (646 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);(unassigned);(unassigned);phys.veloc)
  f/g-Q (char) Foreground quasar identifier ((unassigned);(unassigned);(unassigned);spect.line.veloc;arith)
  L912 [cW/m2/nm](n) [28/32] Log of 912Å luminosity; erg/s/cm2/Å (Note 2)   ((unassigned);(unassigned);(unassigned);(unassigned);(unassigned);(unassigned))
  Lbol [mW/m2] (n) [45/48] Log of bolometric luminosity; erg/s/cm2 (Note 2)   (stat.fit.residual;phys.atmol.qn.S;arith.grad;(unassigned))
  b/g-Q (char) Background quasar identifier ((unassigned);(unassigned);(unassigned);src.class.color)
  zbg   [1.7/4.9] Background redshift ((unassigned);(unassigned);(unassigned);pos.parallax;arith.diff;meta.main)
  Nq  (n)Number of foreground quasars associated in QPQ6 (phot.fluence;pos.parallax.trig;arith.grad;src.var)
  b kpc [31/999] Impact parameter R{perp} ((unassigned);(unassigned);(unassigned);phys.polarization;meta.main)
  gUV  (n) [2/17964] Enhancement in flux relative to the extragalactic UV background (Note 2)   ((unassigned);phys.luminosity.fun;arith.grad;meta.abstract;instr.offset)
  Inst (char) Source spectrum (Note G1)   ((unassigned);meta.version;arith.diff;spect.line.veloc;meta.code.qual)
  Lines (char) Emission lines used in zem ((unassigned);stat.error;arith.factor;spect.line.veloc;phys.angArea;meta.main)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  zfg   [1.6/4.5] Emission line derived redshift ((unassigned);stat.error;arith.factor;pos.parallax;arith.diff;meta.main)
  e_zfg km/s [272/794] Uncertainty in zfg ((unassigned);meta.version;arith.diff;time.age;meta.main)
  S/N   [6/205] Signal-to-noise per rest-frame Å (Note 3)   ((unassigned);(unassigned);(unassigned);meta.abstract;meta.main)
  <F2000>   [0/1.2] Average flux (Note 4)   (phot.limbDark;(unassigned);arith.grad;meta.abstract)
  DelF   [-0.5/1] Value defined in Equ. 4 (Note 5)   (stat.value;pos.phaseAng;arith.grad;meta.abstract;instr.offset)
  delv km/s (n) [-1733/1553] Velocity offset (Note 6)   ((unassigned);meta.version;arith.diff;spect.index;instr.bandpass)
  LWave 0.1nm (n) [3204/6615] Lower wavelength of Ly{alpha} analysis (Å) ((unassigned);meta.version;arith.diff;meta.bib.author)
  UWave 0.1nm (n) [3217/6634] Upper wavelength of Ly{alpha} analysis (Å) ((unassigned);(unassigned);(unassigned);meta.bib.author)
  l_WLya (char) Limit flag on WLya (spect.index;spect;arith.grad;pos.galactic.lon)
  WLya 0.1nm (n) [0.2/23.7] Rest equivalent width (Note 7)   ((unassigned);em.mm.200-400GHz;arith;phys.at.moment.magnetic;meta.main)
  e_WLya 0.1nm (n) [0.01/0.3] Uncertainty in WLya ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  l_logNH (char) Limit flag on logNH ((unassigned);meta.version;arith.diff;pos.galactic.lon)
  logNH [cm-2] (n) [14.3/21.3] Log of H I column density ((unassigned);(unassigned);arith.diff;(unassigned))
  e_logNH [cm-2] (n) [0.1/0.4] Uncertainty in logNH ((unassigned);meta.version;arith.diff;time.age;meta.main)
  OT  (n) [-1/1] Optical thick flag (Note 8)   ((unassigned);(unassigned);(unassigned);pos.eq.dec)
  Qfg (char) Name of the foreground quasar in SIMBAD (instr.dispersion;phys.atmol.collStrength;(unassigned);spect.line.veloc)
  Qbg (char) Name of the background quasar in SIMBAD ((unassigned);phys.atmol.qn.F;arith.factor;spect.line.veloc)
  DR9Q  (n)Sources from Paris+, 2012, VII/269, within 2" ((unassigned);(unassigned);(unassigned);pos.geocentric)
  Obs  (n)Display the observation log ((unassigned);(unassigned);(unassigned);pos.eq.dec)
  Sloan  Display the online SDSS data for the nearest object ((unassigned);(unassigned);(unassigned);pos.geocentric)
  Simbad  ask the Simbad data-base about this object ((unassigned);(unassigned);(unassigned);pos.geocentric)
  _RA deg Postion of foreground quasar (from f/g-Q identifier (right ascension part) ((unassigned);meta.version;arith.diff;(unassigned);arith)
  _DE deg Postion of foreground quasar (from f/g-Q identifier (declination part) ((unassigned);meta.version;arith.diff;(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=846446353 Where phase=3 and catid=17760136
**** 
**** --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/VR276017.err (2026-10-27T19:59:10)
-3
-source=J/ApJ/776/136/qpq6
-ref=VIZ6ae1029043631
elapse time 3