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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/475/959
  X-ray properties of young stellar objects (Forbrich+, 2007)
Post annotation
img(gal)
1.J/A+A/475/959/tablea1(c)Complete source list with parameters determined by acis_extract for the energy range of 0.5-8keV (92 rows)
2.J/A+A/475/959/tablea2X-ray spectral fitting results for one- and two-temperature models (32 rows)
3.J/A+A/475/959/table2Identification of Chandra X-ray sources with optical or infrared counterparts in the CrA star-forming region (46 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (ALL)CXOJ (char) (i) CXOJ designation (HHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
   (ALL)n_CXOJ (char) [*] *: manually added source (meta.note)
  (1)Counts ct Net (background-subtracted) counts (phot.count;em.X-ray)
  (1)E_Counts ct Error on Counts (upper limit) (stat.error;stat.max)
  (1)e_Counts ct Error on Counts (lower limit) (stat.error;phot.count)
  (1)MedE keV Median photon energy (em.energy)
  (1)Signi  Source significance (photometric S/N ratio) (stat.likelihood;obs)
  (1)HR1  Hardness ratio HR1 (Note 1)   (phot.flux;arith.ratio)
  (1)E_HR1  Error on HR1 (upper limit) (stat.error;stat.max)
  (1)e_HR1  Error on HR1 (lower limit) (stat.error)

ALL cols
    
 (i)indexed column
  (1)HR2  Hardness ratio HR2 (Note 1)   (phot.flux;arith.ratio)
  (1)E_HR2  Error on HR2 (upper limit) (stat.error;stat.max)
  (1)e_HR2  Error on HR2 (lower limit) (stat.error)
  (1)HR3  Hardness ratio HR3 (Note 1)   (phot.flux;arith.ratio)
  (1)E_HR3  (n) Error on HR3 (upper limit) (stat.error;stat.max)
  (1)e_HR3  Error on HR3 (lower limit) (stat.error)
  (1)X (char) X indicates the existence of optical or IR counterparts in table2 and/or a 2-temperature plasma model in tablea2 (meta.ref.url)
  (1)Flux1 ct/cm2/s axis_extract estimate of the observed flux, which is done channel-wise (phot.flux;em.X-ray)
  (1)Flux2 ct/cm2/s axis_extract estimate of the observed flux, which is done using an averaged value (phot.flux;em.X-ray)
  (1)RelExp  Ratio of the summed exposure map values at the source position relative to the maximum value (Note 2)   (stat.fit.omc)
  (1)Nobs  Number of observations in which a source was detected (Note 3)   (meta.number)
  (1)_RA deg (i) Position (derived from CXO name (right ascension part) (pos.eq.ra;meta.main)
  (1)_DE deg (i) Position (derived from CXO name (declination part) (pos.eq.dec;meta.main)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)NH 10+22cm-2Hydrogen column density (phys.columnDensity)
  (2)E_NH 10+22cm-2Error on NH (upper limit) (stat.error;stat.max)
  (2)e_NH 10+22cm-2(n) Error on NH (lower limit) (stat.error)
  (2)l_T1 (char) Limit flag on T1 (meta.code.error)
  (2)T1 MK Plasma temperature T1 (phys.temperature)
  (2)E_T1 MK (n) Error on T1 (upper limit) (stat.error;stat.max)
  (2)e_T1 MK (n) Error on T1 (lower limit) (stat.error)
  (2)T2 MK (n) Second plasma temperature for two-temperature model (phys.temperature)
  (2)E_T2 MK (n) Error on T2 (upper limit) (stat.error;stat.max)
  (2)e_T2 MK (n) Error on T2 (lower limit) (stat.error)
  (2)Norm1  Normalization factor from XSPEC (Note 2)   (stat.fit.param)
  (2)E_Norm1  Error on Norm1 (upper limit) (stat.error;stat.max)
  (2)e_Norm1  Error on Norm1 (lower limit) (stat.error)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)Norm2  (n) Second normalization factor from XSPEC for two-temperature model (Note 2)   (stat.fit.param)
  (2)e_Norm2  (n) rms uncertainty on Norm2 (stat.error)
  (2)LX 10-7W Extinction-corrected (unabsorbed) X-ray luminosity integrated over the 0.2-8keV band) derived from the model parameters (phys.luminosity;em.X-ray)
  (2)chi2  Goodness-of-fit measure chi2red value (stat.fit.chi2)
  (2)DOF  Degree of freedom (stat.fit.dof)
  (3)Opt (char) [y/n] Counterparts to the X-ray source in the optical DSS images ? (Note 2)   (meta.code)
  (3)NIR (char) [y/n] Counterparts to the X-ray source in the infrared 2MASS images ? (Note 2)   (meta.code)
  (3)MIR (char) [y/n] Counterparts to the X-ray source in the infrared Spitzer images ? (Note 2)   (meta.code)
  (3)SED (char) SED class derived from the Spitzer photometry (meta.code.class)
  (3)Name (char) Name(s) (Note 3)   (meta.id)
  (3)SpType (char) MK spectral type(s) (src.spType)
  (3)Lbol solLum (n) Stellar bolometric luminosity (phys.luminosity)
  (3)u_Lbol (char) [?] Uncertain Lbol (Note 1)   (meta.code.error)

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