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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:

  
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J/ApJ/577/738
  M31 Chandra X-ray point sources (Kong+, 2002)
Post annotation
img(gal)
1.J/ApJ/577/738/table2(c)CHANDRA ACIS catalog of the central region of M31 (204 rows)
2.J/ApJ/577/738/table4Optical IDs (39 rows)
3.J/ApJ/577/738/table5Cross-Correlation of Chandra and ROSAT Sources (77 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)[KGP2002] (char) (i) Object identification (meta.id;meta.main)
   (ALL)CXOM31 (char) Chandra name (JHHMMSS.s+DDMMSS) (meta.id)
  (1)RAJ2000 "h:m:s" (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
  (1)DEJ2000 "d:m:s" (i) Degree of Declination (J2000) (pos.eq.dec;meta.main)
  (1)PosErr arcsec Positional error (stat.error)
  (1)NCts ct The net counts (phot.count;em.X-ray)
  (1)CRate 10-2ct/s The count rate in units of 10–2ct/s (phot.count;em.X-ray)
  (1)e_CRate 10-2ct/s Error in CRate (stat.error)
  (1)HR1  The first hardness ratio (Note 1)   (phot.flux;arith.ratio)
  (1)e_HR1  The error in HR1 (stat.error)

ALL cols
    
 (i)indexed column
  (1)HR2  The second hardness ratio (Note 2)   (phot.flux;arith.ratio)
  (1)e_HR2  The error in HR2 (stat.error)
  (1)LXray 10+30W The 0.3-7keV luminosity in units of 1037erg/s (Note 3)   (phys.luminosity;em.X-ray)
  (1)Notes (char) Additional notes (Note 4)   (meta.note)
  (2)MType (char) Morphological type (src.morph.type)
  (2)Ident (char) Identification (Note 1)   (meta.id.cross)
  (2+3)Off arcsec Radial offset between the catalogued object and the ACIS source (pos.angDistance)
  (2)Ident2 (char) Second identification (Note 1)   (meta.id.cross)
  (2)Off2 arcsec (n) Radial offset between the catalogued object and the ACIS source (pos.angDistance)
  (3)[PFJ93]  (n) ROSAT HRI Identification (Primini et al., 1993ApJ...410..615P (meta.id)

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