VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .
CDS

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/575/A42
  Optical counterparts of ROSAT X-ray in 2 fields (Greiner+, 2015)
ReadMe+ftp
2015A&A...575A..42G
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/575/A42/table1(c)Main X-ray data of the ROSAT sources in 26 Com (238 rows)
2.J/A+A/575/A42/table2(c)Main X-ray data of the ROSAT sources in γ Sge (132 rows)
3.J/A+A/575/A42/table8(c)Optical objects inside or near the error circles of the ROSAT positions in 26 Com (327 rows)
4.J/A+A/575/A42/table9(c)Optical objects inside or near the error circles of the ROSAT positions in γ Sge (415 rows)
Help Xmatch is

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
   (ALL)Xseq  (i) Running number of the X-ray source (meta.number)
   (ALL)RAJ2000 "h:m:s" (i) Right Ascension (J2000) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  (1+2)1RXS (char) ROSAT All-sky Survey Name (IX/10, IX/29) (meta.id;meta.main)
  (1+2)ePos arcsec (n) 90% confidence error circle (stat.error;stat.fit.param)
  (1+2)CR ct/s [0.008/5.7] ROSAT PSPC count rate (phot.count;em.X-ray)
  (1+2)HR1   [-1/1] Hardness ratio 1 (Note 1)   (phot.flux;arith.ratio)
  (1+2)e_HR1  Hardness ratio 1 error (stat.error)
  (1+2)HR2   [-1/1] Hardness ratio 2 (Note 1)   (phot.flux;arith.ratio)
  (1+2)e_HR2  Hardness ratio 2 error (stat.error)
  (1+2)Flux 10-16W/m2X-ray flux (in 10–13erg/cm2/s) (phot.flux;em.X-ray)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1+2)Nc  (n)Number of optical conterparts (meta.number)
  (1+2)ID (char) [a-h] Reference to counterpart in tables 8 and 9 (Note 2)   (meta.id.cross)
  (1+2)Comm (char) Comments for reference to counterpart in tables 8 and 9 (Note 2)   (meta.note)
  (1+2)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)
  (3,4)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (3+4)m_Xseq (char) [a-j] ID for multiple optical objects (meta.code.multip)
  (3+4)Sep arcsec (n) Distance between X-ray centroid and object (pos;arith.diff)
  (3+4)Name (char) Bright star name (meta.id;meta.main)
  (3+4)Var (char) C if constant or GCVS Name if variable (Note 2)   (meta.id)
  (3+4)Type (char) Source type (Note 3)   (meta.code;src.var)
  (3+4)SpType (char) Spectral Type from Simbad (Note 4)   (src.spType)
  (3+4)Bmag mag (n) USNO B magnitude (phot.mag;em.opt.B)
  (3+4)Vmag mag (n) USNO V magnitude (phot.mag;em.opt.V)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4)Rmag mag (n) USNO R magnitude (phot.mag;em.opt.R)
  (3+4)Ampl (char) Amplitude of optical variability (src.var.amplitude;em.opt)
  (3+4)X/opt [-] (n) log of X-ray to optical flux ratio (Note 5)   (phot.flux;arith.ratio)

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