VizieR

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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/262/18
  Spectral energy distributions for 4FGL blazars (Yang+, 2022)
ReadMe+ftp
2022ApJS..262...18Y
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/262/18/table1Blazars sample and the SEDs fitting results for 2709 blazars (2709 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. ((unassigned);meta.version;arith.diff;phys.veloc)
  4FGL (char) 4FGL blazar name (JHHMM.m+DDMMa) ((unassigned);phys.veloc.microTurb;arith;spect.line.veloc;arith)
  C1 (char) Classification, 4FGL-DR3 catalog (Note 1)   ((unassigned);meta.version;arith.diff;pos.galactic)
  C2 (char) Classification, peak frequency (Note 2)   ((unassigned);meta.version;arith.diff;pos.galactic)
  z  (n) [0/4.32] Redshift ((unassigned);meta.version;arith.diff;pos.parallax;meta.main)
  r_z (char) References for z (see refs.dat file) ((unassigned);(unassigned);(unassigned);phys.veloc.dispersion;€?**ucdid=0**?)
  P1   [-0.3/-0.04] Parabolic fit, spectral curvature (Note 3)   ((unassigned);meta.version;arith.diff;pos.bodyrc.lon;meta.main)
  P2 [Hz] [12/18.7] Parabolic fit, synchrotron peak frequency, log({nu}p) (Note 3)   ((unassigned);meta.version;arith.diff;instr.spect;pos.lsr;meta.main)
  P3 [mW/m2] [-13.4/-9.6] Parabolic fit, peak flux, log({nu}pf{nu}p), in log(erg/s/cm2) units (Note 3)   (time.expo;(unassigned);arith.factor;meta.abstract;pos.lsr;meta.main)
  logLp [10-7W] [34.6/47.8] Peak luminosity in log(erg/s) units ((unassigned);(unassigned);(unassigned);(unassigned);pos.lsr;meta.main)
  logLR [10-7W] (n) [31.6/45.4] 1.4GHz radio luminosity in log(erg/s) units ((unassigned);meta.version;arith.diff;(unassigned);stat.interval;(unassigned))
  logLO [10-7W] (n) [34.8/47.4] 2.43+1014Hz optical luminosity in log(erg/s) units ((unassigned);(unassigned);(unassigned);(unassigned);(unassigned);(unassigned))
  logLX [10-7W] (n) [39.9/47.8] 1keV X-ray luminosity in log(erg/s) units ((unassigned);(unassigned);(unassigned);(unassigned);(unassigned);(unassigned))
  logLg [10-7W] [34.5/48.8] 1GeV {gamma}-ray luminosity in log(erg/s) units ((unassigned);(unassigned);(unassigned);(unassigned);(unassigned);(unassigned))
  alpha-RO  (n) [0.01/0.9] Radio to optical effective spectral index ((unassigned);meta.version;arith.diff;phys.abund.Y;meta.main)
  alpha-OX  (n) [0.48/2.1] Optical to X-ray effective spectral index ((unassigned);meta.version;arith.diff;phys.abund.Y;meta.main)
  Simbad  ask the Simbad data-base about this object ((unassigned);(unassigned);(unassigned);pos.geocentric)
  NED  ask the NED data-base about this object ((unassigned);meta.version;arith.diff;pos.geocentric)
  _RA deg Positions from the 4FGL-DR3 catalog (IX/67) or from 4FGL (Abdollahi+ 2020, J/ApJS/247/33) for 7 sources or from 4FGL-DR2 for 4FGL J1242.4-2948 (right ascension part) ((unassigned);meta.version;arith.diff;(unassigned);arith)
  _DE deg Positions from the 4FGL-DR3 catalog (IX/67) or from 4FGL (Abdollahi+ 2020, J/ApJS/247/33) for 7 sources or from 4FGL-DR2 for 4FGL J1242.4-2948 (declination part) ((unassigned);meta.version;arith.diff;(unassigned);arith)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  

The following problems were encountered in this VizieR run:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846436813 Where phase=3 and catid=22620018
**** 
**** --POSTGRES MSG db=1
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****ERROR:  invalid page in block 0 of relation base/16403/6104
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR110407.err (2026-10-27T17:20:10)
-3
-source=J/ApJS/262/18/table1
-ref=VIZ6ae0dd4c1af47
elapse time 3