Fermi detection of BL Lac objects Virtual Observatory Resource

Authors
  1. Wu Z.
  2. Jiang D.
  3. Gu M.
  4. Chen L.
  5. Published by
    CDS
Abstract

By cross-correlating an archival sample of 170 BL Lacs with a 2 year Fermi/LAT AGN sample, we have compiled a sample of 100 BL Lacs with Fermi detection (FBLs) and a sample of 70 non-Fermi BL Lacs (NFBLs). We compared various parameters of FBLs with those of NFBLs, including the redshift, the low-frequency radio luminosity at 408MHz (L_408MHz_), the absolute magnitude of host galaxies (M_host_), the polarization fraction from the NVSS survey (P_NVSS_), the observed arcsecond scale radio core flux at 5GHz (F_core_), and the jet Doppler factor. All these parameters are directly measured or derived from available data in the literature. We found that the Doppler factor is on average greater in FBLs than in NFBLs, and the Fermi {gamma}-ray detection rate is higher in sources with higher Doppler factor. In contrast, there are no significant differences in terms of the intrinsic parameters of redshift, L_408MHz_, M_host_, and P_NVSS_. FBLs seem to have a higher probability of exhibiting measurable proper motion.

Keywords
  1. bl-lacertae-objects
  2. radio-sources
  3. redshifted
  4. gamma-ray-astronomy
Bibliographic source Bibcode
2014A&A...562A..64W
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/562/A64
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/562/A64
Document Object Identifer DOI
doi:10.26093/cds/vizier.35620064

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/562/A64
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/562/A64
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/562/A64
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/562/A64/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/562/A64/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/562/A64/table3?

History

2014-05-09T15:19:43Z
Resource record created
2014-05-09T15:19:43Z
Created
2017-09-22T16:16:37Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr