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/A+A/474/495
  X-ray flares from Cygnus OB2 young stars (Albacete Colombo+, 2007)
ReadMe+ftp
2007A&A...474..495A
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/474/495/table1X-ray properties of flaring sources in the Cygnus OB2 region. (147 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)
  [AFM2007]  Source number according to Albacete Colombo et al. (2007, Cat. J/A+A/464/211) ((unassigned);meta.version;arith.diff;spect.line.veloc;arith)
  Mass solMass (n) Mass of star from Albacete Colombo et al. (2007, Cat. J/A+A/464/211) ((unassigned);meta.version;arith.diff;(unassigned))
  Phot ct Net detected photon from Albacete Colombo et al. (2007, Cat. J/A+A/464/211) ((unassigned);meta.version;arith.diff;time.duration;(unassigned);(unassigned))
  Ex keV Median photon energy from Albacete Colombo et al. (2007, Cat. J/A+A/464/211) ((unassigned);(unassigned);(unassigned);instr.sensitivity)
  logLX [10-7W] X-ray luminosity from Albacete Colombo et al. (2007, Cat. J/A+A/464/211) ((unassigned);(unassigned);(unassigned);(unassigned);(unassigned);(unassigned))
  logPKS [-] Logarithm of the KS-test significance (Note 1)   ((unassigned);(unassigned);(unassigned);phys.polarization.circular;meta.main)
  CR ct/ks Count rate of the characteristic level from MLB analysis ((unassigned);(unassigned);(unassigned);time.duration;(unassigned);(unassigned))
  Tflr s Flare duration from MLB analysis ((unassigned);(unassigned);(unassigned);phys.polarization.stokes.Q;meta.main)
  LXpeak [10-7W] Unabsorbed LX at the flare peak was computed using CF, from MLB analysis ((unassigned);(unassigned);(unassigned);(unassigned);(unassigned);(unassigned))
  Eflr keV Flare energy from MLB analysis (phot.color;instr.det.noise;arith.grad;instr.sensitivity)
  tau.m h Measure of the flare's decay time, Efit/Lmax, from MLB analysis ((unassigned);meta.version;arith.diff;phys.polarization.stokes.Q;meta.main)
  tau.f h (n) Fitted decay time of flare from MLB analysis ((unassigned);meta.version;arith.diff;phys.polarization.stokes.Q;meta.main)
  _RA deg Position from Albacete Colombo et al., Cat. J/A+A/464/211 (right ascension part) (phot.color;obs.atmos;arith.factor;(unassigned);arith)
  _DE deg Position from Albacete Colombo et al., Cat. J/A+A/464/211 (declination part) (time.equinox;(unassigned);arith.factor;(unassigned);arith)
  2MASSJ (char) Name of the 2MASS counterpart (HHMMSSss+DDMMSSs) ((unassigned);(unassigned);(unassigned);spect.line.veloc)

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=846499356 Where phase=3 and catid=34740495
**** 
**** --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/VR1190656.err (2026-10-28T10:42:35)
-3
-source=J/A+A/474/495
-ref=VIZ6ae1d19c122b00
elapse time 1