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/539/A74
  NGC1893 Chandra X-ray catalog (Caramazza+, 2012)
ReadMe+ftp
2012A&A...539A..74C
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/539/A74/catalogNGC1893 Chandra X-ray catalog: basic source properties (1021 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)
  Seq  Identification number (meta.id;meta.main)
  Name (char) IAU Designation (HHMMSS.ss+DDMMSS.s) (meta.id)
  RAJ2000 deg (i) X-ray Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) X-ray Declination (J2000) (pos.eq.dec;meta.main)
  e_pos arcsec Standard deviation of position (stat.error)
  OffAxis arcmin Off-axis angle (instr.offset)
  CTn ct Net counts extracted in the total energy band (phot.count;em.X-ray)
  e_CTn ct Average of the upper and lower 1 sigma errors (stat.error)
  CTbg ct Background counts expected in the source extraction region (total band) (instr.background;obs.field)
  PSFf   [0/1] Fraction of the PSF (at 1.497keV) enclosed within the extraction region (instr.det.psf)
  Signi  Photometric significance computed as net counts divided by the upper error on net counts (meta.note)
  PKS  (n) [0/1] Kolmogorov-Smirnov probability that the lightcurves of the sources are constant (stat.fit.goodness)
  t.exp ks Effective exposure time (time.duration;obs.exposure)
  Emed keV (n) Background-corrected median photon energy (total band) (em.energy)
  logLX [10-7W] (n) Absorption-corrected X-ray luminosities (phys.luminosity;em.X-ray)
  r_logLX (char) X-ray Luminosity origin (Note 1)   (meta.ref;pos.frame)

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