VizieR

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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/A+A/615/A148
  Pre-main sequence stars in Scorpius OB1 (Damiani, 2018)
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img(gal)
1.J/A+A/615/A148/tableb1(c)Chandra ACIS-I X-ray sources in G345.45+1.50 (384 rows)
2.J/A+A/615/A148/tableb2(c)XMM-Newton EPIC X-ray sources in Trumpler 24 (195 rows)
3.J/A+A/615/A148/tableb3(c)Optical/NIR photometry for M stars and stars with UV/IR/Hα excess (12041 rows)
Help Xmatch is

 
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)Xray   [1/384] X-ray source number (meta.id)
  (1)CXOU (char) Chandra source standard Identifier (JHHMMSS.s+DDMMSS) (meta.id;meta.main)
   (ALL)RAJ2000 deg (i) Right ascension (J2000.0) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 deg (i) Declination (J2000.0) (pos.eq.dec;meta.main)
  (1+2)PosErr arcsec Position error (stat.error;pos)
  (1+2)CRate ct/ks X-ray count rate (phot.count;em.X-ray)
  (1+2)e_CRate ct/ks Error on X-ray count rate (stat.error)
   (ALL)VPHAS (char) VPHAS+ (Cat. II/341) identifier (JHHMMSS.s+DDMMSS.s) (meta.id)
   (ALL)rmag mag (n) VPHAS+ r magnitude (phot.mag;em.opt.R)
   (ALL)g-r mag (n) VPHAS+ g-r color (phot.color;em.opt.B;em.opt.R)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)r-i mag (n) VPHAS+ r-i color (phot.color;em.opt.R;em.opt.I)
   (ALL)Jmag mag (n) NIR J magnitude (phot.mag;em.IR.J)
   (ALL)J-H mag (n) NIR J-H color (phot.color;em.IR.J;em.IR.H)
   (ALL)H-K mag (n) NIR H-K color (phot.color;em.IR.H;em.IR.K)
  (2)XMMU (char) XMM source standard Identifier (JHHMMSS.s+DDMMSS) (meta.id;meta.main)
  (3)Seq   [1/12041] Sequential star number (meta.id;meta.main)
  (3)r-Ha mag (n) VPHAS+ r-Halpha color (phot.color;em.opt.R;em.line.Halpha)
  (3)u-g mag (n) VPHAS+ u-g color index (phot.color;em.opt.U;em.opt.B)
  (3)IRexc (char) [Y] IR-excess flag (meta.code)
  (3)Haem (char) [Y] H-alpha-emission flag (meta.code)
  (3)UVexc (char) [Y] UV-excess flag (meta.code)

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