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/A+A/464/211
  Chandra and near-IR obs. of Cyg OB2 (Albacete Colombo+, 2007)
ReadMe+ftp
2007A&A...464..211A
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/464/211/catalogCygnus OB2 source catalog: X-ray sources and near-IR counterparts (tables 1 and 2 of paper) (1003 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);phys.veloc.orbital;arith.diff;phys.veloc)
  n_[AFM2007] (char) S indicates that X-ray spectroscopy is available in table3 ((unassigned);phys.veloc.orbital;arith.diff;pos.geocentric)
  [AFM2007]  (i) Sequential number ((unassigned);(unassigned);(unassigned);phys.veloc)
  CXOCYG (char) Name (HHMMSS.ss+DDMMSS.s) CXOCYG JHHMMSS.ss+DDMMSS.s in Simbad ((unassigned);(unassigned);(unassigned);spect.line.veloc)
  RAJ2000 "h:m:s" Right ascension (J2000) ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  DEJ2000 "d:m:s" Declination (J2000) ((unassigned);(unassigned);stat.min;(unassigned);arith)
  ePos arcsec rms uncertainty on position ((unassigned);(unassigned);arith.factor;time.age;meta.main)
  Theta arcmin Off-axis angle ((unassigned);phys.atmol.qn.J;arith.grad;spect.line.broad.Stark)
  Signi  Significance of detection ((unassigned);phys.veloc.orbital;arith.diff;pos.healpix;stat.param)
  Area pix Source extraction area ((unassigned);phys.veloc.orbital;arith.diff;(unassigned))
  fPSF   [0/1] PSF fraction of source events within the extraction area, assuming E=1.49keV ((unassigned);(unassigned);(unassigned);phys.atmol.level)

ALL cols		    
 (i)indexed column
  Counts ct Background-corrected extracted source counts in the 0.5-8.0keV band (in ct/photon) ((unassigned);phys.veloc.orbital;arith.diff;time.duration;(unassigned);(unassigned))
  ExpTime ks Exposure time ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);(unassigned);meta.main)
  CRtot ct/ks Total (0.5-8.0keV) band count rate (Note 1)   ((unassigned);(unassigned);(unassigned);time.duration;(unassigned);(unassigned))
  CRsoft ct/ks Soft (0.5-1.7keV) band count rate (Note 1)   ((unassigned);phys.veloc.orbital;arith.diff;time.duration;(unassigned);(unassigned))
  CRmed ct/ks Medium (1.7-2.8keV) band count rate (Note 1)   ((unassigned);(unassigned);(unassigned);time.duration;(unassigned);(unassigned))
  CRhard ct/ks Hard (2.8-8.0keV) band count rate (Note 1)   ((unassigned);(unassigned);(unassigned);time.duration;(unassigned);(unassigned))
  Ex keV Median photon energy ((unassigned);(unassigned);(unassigned);instr.sensitivity)
  Var  Logarithm of the KS-test significance, log(PKS) (Note 2)   ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);pos.satellite;meta.main)
  n_Var (char) [+] +: flare-like sources ((unassigned);phys.veloc.orbital;arith.diff;phys.veloc.orbital)
  CXOAC (char) CXOACJ name (HHMMSS.ss+DDMMSS.s) ((unassigned);phys.veloc.orbital;arith.diff;spect.line.veloc)
  2MASS (char) 2MASSJ name (HHMMSSss+DDMMSSs) ((unassigned);(unassigned);(unassigned);spect.line.veloc)
  Off arcsec (n) Offset ((unassigned);phys.veloc.orbital;arith.diff;em.mm.50-100GHz)
  Jmag mag (n) 2MASS J magnitude ((unassigned);(unassigned);(unassigned);stat.filling;(unassigned);(unassigned))

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  e_Jmag mag (n) rms uncertainty on Jmag ((unassigned);em.IR.15-30um;arith;time.age;stat.probability;(unassigned);(unassigned))
  Hmag mag (n) 2MASS H magnitude ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))
  e_Hmag mag (n) rms uncertainty on Hmag ((unassigned);phys.veloc.orbital;arith.diff;time.age;stat.probability;(unassigned);(unassigned))
  Ksmag mag (n) 2MASS Ks magnitude ((unassigned);(unassigned);(unassigned);stat.filling;(unassigned);(unassigned))
  e_Ksmag mag (n) rms uncertainty on Ksmag ((unassigned);(unassigned);(unassigned);time.age;stat.probability;(unassigned);(unassigned))
  q_Jmag (char) J band photometric quality flag (Note 1)   ((unassigned);phys.veloc.orbital;arith.diff;pos.cartesian)
  q_Hmag (char) H band photometric quality flag (Note 1)   (phot.fluence;em.IR.4-8um;arith.factor;pos.cartesian)
  q_Ksmag (char) Ks band photometric quality flag (Note 1)   (phot.fluence;em.IR.4-8um;arith.factor;pos.cartesian)
  AV mag (n) Absorption in V band (meta.code.mime;phys.mol;arith.grad;stat.filling;(unassigned);(unassigned))
  n_AV (char) [n] n indicates stars with unconstrained AV (pos.cylindrical;(unassigned);stat.min;phys.veloc.orbital)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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