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/602/A86
  Blazar candidates among Fermi/LAT 3FGL catalog (Lefaucheur+, 2017)
ReadMe+ftp
2017A&A...602A..86L
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/602/A86/table7Type assignation of blazar candidates (903 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)
  3FGL (char) 3FGL source name, JHHMM.m+DDMM (Source_Name) (meta.id;meta.main)
  GLON deg Galactic longitude (pos.galactic.lon)
  GLAT deg Galactic latitude (pos.galactic.lat)
  Class (char) [BCU UnId] Classification (CLASS) (Note 1)   (meta.code)
  gamma  Spectral index of the power law hypothesis (PowerLaw_Index) (spect.index)
  logEp [-] Discriminant parameter pivot energy (which is somewhat correlated to the position of the high energy peak) (Pivot_Energy) (em.energy)
  logTS [-] Discriminant parameter normalised variability (NormalizedVariability) (Note G2)   (src.var.index)
  HR23  Discriminant parameter HR23 hardness ratio (Note G3)   (phot.flux;arith.ratio)
  HR34  Discriminant parameter HR34 hardness ratio (Note G3)   (phot.flux;arith.ratio)
  zetaBDT  Output parameter zeta from BDT decision (zeta_BDT) (Note G5)   (stat.fit.param)
  zetaMLP  Output parameter zeta from MLP decision (zeta_MLP) (Note G5)   (stat.fit.param)
  Type (char) Blazar type (BlazarType) (Note G6)   (src.class)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)
  _RA.icrs deg (n)(i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
  _DE.icrs deg (n)(i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)

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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