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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/356/445
  ROSAT-FIRST AGN correlation (Brinkmann+, 2000)
Post annotation
img(gal)
1.J/A+A/356/445/table1(c)ROSAT sources with single FIRST matches (843 rows)
2.J/A+A/356/445/table2(c)ROSAT sources with multiple FIRST matches (1469 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.
   (ALL)FIRST (char) find the FIRST original data
   (ALL)RXS (char) X-ray source ROSAT All Sky Survey designation
   (ALL)RAJ2000 "h:m:s" FIRST source right ascension (J2000)
   (ALL)DEJ2000 "d:m:s" FIRST source declination (J2000)
   (ALL)dRX arcsec Distance between radio and X-ray source
  (1)Name (char) Common name for source obtained from NED, truncated to the first 14 characters.
   (ALL)Type (char) Type of the object (Note G1)   
  (1)r_Type (char) Reference for classification (Note 2)   
   (ALL)z  (n) Redshift
   (ALL)Fr mJy FIRST 1.4 GHz peak flux

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)Fx 10-15W/m2X-ray flux in the 0.1-2.4 keV energy range
   (ALL)e_Fx 10-15W/m2rms uncertainty on Fx
  (1)Gamma  (n) Power-law photon index of X-ray source (Note 3)   
  (1)E_Gamma  (n) Error in Gamma (upper limit)
  (1)e_Gamma  (n) Error in Gamma (lower limit)
  (1)Emag mag (n) E-magnitude of the optical counterpart (from APM)
  (1)EType  (n) Value for the classification of the optical object in E-band (Note 3)   
  (1)Omag mag (n) O-magnitude of the optical counterpart (from APM)
  (1)Otype  (n) Value for the classification of the optical object in O-band (Note 4)   
  (1)A(E) mag (n) Extinction correction (Note 5)   
  (1)dRO arcsec (n) Angular distance between radio and optical position
  (2)l_z (char) Limit flag on z
  (2)z2  (n) Second estimated redshift

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)n_z2 (char) [?) ] Uncertainty flag on z2

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  
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