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/ApJS/278/11
  4LAC FSRQs & BL Lac objects energy distributions (Liang+, 2025)
ReadMe+ftp
2025ApJS..278...11L
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/278/11/sampleLogarithmic parabola fitting results for BL Lacertae objects (LBLs; Table 1) and flat-spectrum radio quasars (FSRQs; Table 2) (1006 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)
  OT (char) BL Lacertae objects (LBLs; Table 1) or flat-spectrum radio quasars (FSRQs; Table 2) (src.class)
  4FGL (char) 4FGL name of sources (JHHMM.m+DDd) (meta.id;meta.main)
  Assoc (char) Associated source name (meta.id)
  z  (n) [-0.003/4.4] Redshift (Note 1)   (src.redshift)
  Gamma   [1.2/3.3] Gamma-ray photon spectral index, {Gamma}{gamma} (spect.index)
  lognupksLP [Hz] (n) [8.7/26] Log, Synchrotron radiation peak frequency; log{nu}peaksyn (em.freq)
  lognupkicLP [Hz] (n) [8/201.7] Log, Inverse Compton scattering peak frequency; log{nu}peakic (em.freq)
  lognufpksynLP [mW/m2] (n) [-14/-5.9] Log, Synchrotron radiation peak flow; log{nu}f{nu}peaksyn (phot.flux.density;em.gamma.hard)
  lognufpkicLP [mW/m2] (n) [-20.2/242.5] Log, Inverse Compton scattering peak flow; log{nu}f{nu}peakic (phot.flux.density;em.gamma.hard)
  CD  (n) [0/649.6] Compton dominant parameter (stat.fit.param)
  logLgamma [10-7W] (n) [36.6/50.9] Log, gamma-ray luminosity (phys.luminosity;em.gamma)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)
  NED  ask the NED data-base about this object (meta.ref.url)
  _RA deg (i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
  _DE deg (i) Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)

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