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/ApJ/923/75
  X-ray/UV/opt counterparts of 4FGL gamma-ray sources (Kerby+, 2021)
ReadMe+ftp
2021ApJ...923...75K
Similar Catalogs
Post annotation 		img(gal)
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)
Help Xmatch is

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortJoin tables
more join
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) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
   (ALL)_DE deg (i) Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)
  (2)f_SwXF4 (char) [*] Flag on SwXF4 (Note 1)   (meta.code)

ALL cols		    
 (i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  
elapse time 0