VizieR

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

VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/ApJ/923/75
  X-ray/UV/opt counterparts of 4FGL gamma-ray sources (Kerby+, 2021)
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2021ApJ...923...75K
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1.J/ApJ/923/75/table3(c)*Fermi-LAT features for the unassociated sample investigated in this work, along with Swift-XRT and -UVOT parameters for all possible X-ray/UV/optical counterparts (single counterpart) (Note) (174 rows)
2.J/ApJ/923/75/table4(c)*Fermi-LAT features for the unassociated sample investigated in this work, along with Swift-XRT and -UVOT parameters for all possible X-ray/UV/optical counterparts (multiple X-ray counterparts) (Note) (31 rows)
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Simple ConstraintList Of Constraints
 
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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)Type (char) Source type code (Note 1)   (meta.code.class)
   (ALL)4FGL (char) Target 4FGL identifier (JHHMM.m+DDMMc) (Note 2)   (meta.id;meta.main)
   (ALL)logFG [10-7W/cm2] [-12.1/-10.2] Log γ-ray flux; erg/s/cm2 (phot.flux.density;em.gamma.hard)
   (ALL)GammaG   [1.25/3.01] The γ-ray photon index (spect.index)
   (ALL)VarInd   [1.23/59.61] Year-over-year γ-ray variability index (meta.code;src.var.index)
   (ALL)CurvInd   [0/14.3] The γ-ray curvature index (spect.index)
   (ALL)SwXF4 (char) Target SwXF4 identifier (JHHMMSS.s+DDMMSS) (meta.id.cross)
   (ALL)logFX [10-7W/cm2] [-13.11/-7.39] Log X-ray 0.3-10keV flux; erg/s/cm2 (phot.flux;em.X-ray)
   (ALL)GammaX   [-1.6/10] X-ray photon index (spect.index)
   (ALL)UVOT (char) Swift/UVOT filter used (meta.code;instr.filter)

ALL cols		    
 (i)indexed column
   (ALL)Vmag mag [14.68/22.7] Apparent V band Vega magnitude (Note G1)   (phot.mag;em.opt.V)
   (ALL)Pbzr   [0.0015/1] The blazar probability (stat.fit.goodness)
   (ALL)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)
   (ALL)_RA deg (i) Positions from X-ray source name (SwXF4) (right ascension part) (pos.eq.ra;meta.main)
   (ALL)_DE deg (i) Positions from X-ray source name (SwXF4) (declination part) (pos.eq.dec;meta.main)
  (2)m_4FGL  (n)Number of X-ray possible counterparts to the Fermi source (meta.number)
  (2)f_SwXF4 (char) [*] Flag on SwXF4 (Note 1)   (meta.code)

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