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:

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J/A+A/521/A45
  X-ray detections in the σ Ori cluster (Caballero+, 2010)
Post annotation
img(gal)
1.J/A+A/521/A45/tablec1(c)HRC-I/Chandra X-ray detections with significance over 5.1. (107 rows)
2.J/A+A/521/A45/tablec2Optical/near-infrared counterparts of X-ray sources in Table C1 (90 rows)
3.J/A+A/521/A45/tablec3(c)A reappraisal to the X-ray sources near σ Ori in Wolk (1996, Ph.D. Thesis) (63 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)
   (1+2)Seq  (i) [1/107] Sequential number (meta.id;meta.main)
  (1)n_Seq (char) O indicates optical/near-IR counterpart in tablec2 (meta.ref.url)
  (1)RAJ2000 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
  (1)DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  (1)e_Pos arcsec Position error (stat.error)
  (1)Signi  Significance of detection (stat.fit.goodness;instr.saturation)
  (1)Offaxis arcmin Angular separation to the centre of field of view (instr.offset;instr.fov)
  (1+3)CR ct/ks Count rate (phot.count;em.X-ray)
  (1+3)e_CR ct/ks rms uncertainty on CR (stat.error)
  (1)Flux 10-17W/m2Apparent X-ray flux (10–14erg/cm2/s) (phot.flux;em.X-ray)

ALL cols
    
 (i)indexed column
  (1+3)NX  (n) Source number in Franciosini et al, 2006, Cat. J/A+A/446/501, <[FPS2006] NX NNN> in Simbad (meta.id)
  (1)n_NX (char) [)<] Uncertain or non-detection (Note 1)   (meta.note)
  (1)CXO  (n) Source number in Skinner et al. 2008ApJ...683..796S, <[SSC2008] NN> in Simbad (meta.id)
  (2)2MASS (char) 2MASS name (HHMMSSss+DDMMSSs) (meta.id.cross)
  (2+3)Name (char) Name (meta.id.cross)
  (2)AName (char) Alternative name (meta.id)
  (2)Class (char) Classification (Note 2)   (src.class)
  (3)Source (char) Source name (Note 1)   (meta.id;meta.main)
  (3)RA1996 "h:m:s" (i) Wolk 1996 Right ascension (J2000) (pos.eq.ra;meta.main)
  (3)DE1996 "d:m:s" (i) Wolk 1996 Declination (J2000) (pos.eq.dec;meta.main)
  (3)SpT (char) MK spectral type (src.spType)
  (3)n_SpT (char) [x] when star spectroscopically investigated by Wolk (1996 PhD thesis) but spectral type not given (meta.note)
  (3)RA2 "h:m:s" (n) 2MASS Right ascension (J2000) (pos.eq.ra)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (3)DE2 "d:m:s" (n) 2MASS Declination (J2000) (pos.eq.dec)
  (3)2M (char) 2MASS data (Cutri et al. 2003, Cat. II/246) (meta.ref.url)
  (3)SimbadName (char) Designation understandable by the Simbad data-base (meta.id)
  (3)_RA.icrs "h:m:s" (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
  (3)_DE.icrs "d:m:s" (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)

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