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/564/A120
  Chandra X-ray observation of Gum 31 (Preibisch+, 2014)
ReadMe+ftp
2014A&A...564A.120P
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/564/A120/sourcesCatalog of the Chandra X-ray sources in the Gum 31 region (table1), with near- and mid-infrared photometry (table3) (679 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  Seq  (i) [1/679] X-ray catalog sequence number, sorted by RA (meta.id)
  f_Seq (char) [g.] Source anomalies (Note 5)   (meta.code)
  Name (char) IAU designation of the X-ray source (HHMMSS.ss+DDMMSS.s, J2000) (meta.id)
  RAJ2000 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
  ePos arcsec [0/1.4] Position error (Note 1)   (stat.error;pos)
  theta arcmin Off-axis angle θ (instr.offset)
  Ctnet ct Net counts in the total energy band (0.5-8keV) (phot.count;em.X-ray)
  e_Ctnet ct 1-σ errors on net counts (stat.error)
  Bt ct Background counts expected in the source extraction region (total band) (instr.background;obs.field)
  CHnet ct Net counts in the hard energy band (2-8keV) (phot.count;em.X-ray)

ALL cols		    
 (i)indexed column
  fPSF   [0/1] Fraction of the PSF (at 1.497keV) enclosed within the extraction region (Note 2)   (instr.det.psf)
  Signi   [1/30] Photometric significance (Note 3)   (stat.fit.goodness;phot)
  l_logPB (char) Limit flag on logPB (meta.code.error)
  logPB   [-5/-2] Logarithmic probability PB that the extracted counts (total band) are solely from background (Note 4)   (stat.fit.goodness)
  Var (char) [abc] Variability characterization based on K-S statistic (total band) from the single ObsId showing the most variability (Note 6)   (meta.code;src.var)
  Emed keV Background-corrected median photon energy (total band) (em.energy)
  VISTA (char) IAU designation of the corresponding VISTA source (HHMMSS.ss+DDMMSS.s, J2000) (meta.id.assoc)
  Jmag mag (n) Near-infrared photometry in the J band (phot.mag;em.IR.J)
  Hmag mag (n) Near-infrared photometry in the H band (phot.mag;em.IR.H)
  Ksmag mag (n) Near-infrared photometry in the Ks band (phot.mag;em.IR.K)
  SNRJ  (n) Signal-to-noise ratio of the J band flux measurement (stat.snr)
  SNRH  (n) Signal-to-noise ratio of the H band flux measurement (stat.snr)
  SNRKs  (n) Signal-to-noise ratio of the Ks band flux measurement (stat.snr)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Src  (n) [1/2] Flag indicating the source of the JHK photometry: 1=VISTA, 2=2MASS (meta.note)
  Spitzer (char) IAU designation of the corresponding Spitzer source (HHMMSS.ss+DDMMSS.s, J2000) (meta.id.assoc)
  [3.4] mag (n) Mid-infrared photometry in the Spitzer IRAC 3.4µm (1) band (phot.flux.density;em.IR.4-8um)
  [4.5] mag (n) Mid-infrared photometry in the Spitzer IRAC 4.5µm (2) band (phot.mag;em.IR.4-8um)
  [5.8] mag (n) Mid-infrared photometry in the Spitzer IRAC 5.8µm (3) band (phot.flux.density;em.IR.4-8um)
  [8.0] mag (n) Mid-infrared photometry in the Spitzer IRAC 8.0µm (4) band (phot.flux.density;em.IR.8-15um)
  SNR1  (n) Signal-to-noise ratio of IRAC-1 flux (stat.snr)
  SNR2  (n) Signal-to-noise ratio of IRAC-2 flux (stat.snr)
  SNR3  (n) Signal-to-noise ratio of IRAC-3 flux (stat.snr)
  SNR4  (n) Signal-to-noise ratio of IRAC-4 flux (stat.snr)
  SimbadName (char) Designation understandable by the Simbad data-base (meta.id)

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