VizieR

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

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/704/A344
  eRASS1 counterparts and classification (Salvato+, 2025)
ReadMe+ftp
2025A&A...704A.344S
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/704/A344/4xmmcw20CatWISE2020 counterparts to 4XMM and field population used for training (1328859 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  XMM  X-ray source identifier (XMM_SRCID) (meta.id;meta.main)
  RAJ2000 deg (n)(i) X-ray source right ascension (J2000) at Ep=Epoch (XMM_RA) (pos.eq.ra;meta.main)
  DEJ2000 deg (n)(i) X-ray source declination (J2000) at Ep=Epoch (XMM_DEC) (pos.eq.dec;meta.main)
  ePos arcsec (n) Uncertainty on X-ray source coordinate, including systematic error (XMM_POSERR) (stat.error;pos.frame)
  Epoch yr (i) XMM epoch (XMM_epoch) (time.epoch)
  FX 10-18W/m2(n) X-ray source flux estimate, 0.5-2keV band (XMM_fx) (phot.flux;em.X-ray)
  e_FX 10-18W/m2(n) Uncertainty on X-ray source flux estimate, 0.5-2keV band (XMM_efx) (stat.error)
  CW2020 (char) CatWISE2020 source identifier (CW20sourceid) (meta.id)
  RACdeg deg Original CatWISE2020 source right ascension (J2000) (CW20raorig) (pos.eq.ra)
  DECdeg deg Original CatWISE2020 source declination (J2000) (CW20decorig) (pos.eq.dec)
  RApdeg deg CatWISE2020 right ascension propagated to epoch of X-ray detection (CW20raprop) (pos.eq.ra)
  DEpdeg deg CatWISE2020 declination propagated to epoch of X-ray detection (CW20decprop) (pos.eq.dec)
  SepX-OIR arcsec (n) Separation between X-ray and CatWISE2020 coordinates (SeparationXOIR) (pos.angDistance;src.orbital)
  pany  (n) NWAY p_any parameter for X-ray->OIR association (p_any) (stat.fit.goodness)
  pi  (n) NWAY p_i parameter for X-ray->OIR association (p_i) (stat.fit.goodness)
  FlagSubSamp   [0/2] 0=Field source, 1=Ok association, 2=Good association (SUBSAMPLE_FLAG) (meta.code.error)

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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