VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .
CDS

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/831/145
  6Ms Chandra long-term analyses of AGNs (Yang+, 2016)
ReadMe+ftp
2016ApJ...831..145Y
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/831/145/table3Source properties (68 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. (meta.record)
  Name (char) Standard Chandra CDF-S source identifier (meta.id;meta.main)
  RAJ2000 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
  z   [0.1/3.8] Adopted redshift (Note 1)   (src.redshift)
  e_z  (n) [0.01/0.3] The 1σ error in z (Note 2)   (stat.error;src.redshift)
  OType (char) Optical spectral type (Note 3)   (src.class)
  Off arcmin [1.9/8] Off-axis angle (instr.offset)
  Cts ct [648/11284] Full band, 0.5-7keV, total net counts; not aperture corrected (phot.count;em.X-ray)
  pPF % [0/86] Photon-flux variability p-value (stat.fit.goodness;src.var)
  pHR % [0/100] Hardness-ratio variability p-value (stat.fit.goodness;src.var)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Epeg keV [0.5/2.7] Lower end of normalization band (Note 4)   (em.energy)
  Good % [0/44] Goodness of the spectral fitting (Note 5)   (stat.fit.goodness)
  Gamma   [1/3] Power-law photon index (meta.code;spect.index)
  Lx 10-7W Epoch-mean, intrinsic luminosity, rest-frame 2-10keV; erg/s (phys.luminosity;em.X-ray)
  NH cm-2 Epoch-mean, Hydrogen column density (phys.columnDensity)
  DelAICL   [-6/1060] Metric of Lx variability significance (Note 6)   (stat.fit.goodness)
  DelAICN   [-6/84] Metric of NH variability significance (Note 6)   (stat.fit.goodness)
  sigma2L   [-0.02/0.5] Normalized excess variance of LX variability (Note 6)   (stat.variance)
  e_sigma2L   [0.001/0.3] Uncertainty in sigma2L (stat.error)
  sigma2N  (n) [-0.05/0.2] Normalized excess variance of NH variability (Note 7)   (stat.variance)
  e_sigma2N  (n) [0.001/0.2] Uncertainty in sigma2N (stat.error)
  CCat  (n)Data within 1" from Treister+, 2009, J/ApJ/693/1713; Tozzi+, 2009, J/ApJ/698/740; Szokoly+, 2004, J/ApJS/155/271; Silverman+, 2010, J/ApJS/191/124; Mignoli+, 2005, J/A+A/437/883; Ravikumar+, 2007, J/A+A/465/1099 and Mao+, 2012, J/MNRAS/426/3334 (meta.ref.url)
  SimbadName (char) Designation understandable by the Simbad data-base (meta.id)
  NED  ask the NED data-base about this object (meta.ref.url)

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