Beamed and unbeamed emission of gamma-ray blazars Virtual Observatory Resource

Authors
  1. Pei Z.
  2. Fan J.
  3. Yang J.
  4. Bastieri D.
  5. Published by
    CDS
Abstract

A two-component model of radio emission has been used to explain some radio observational properties of Active Galactic Nuclei (AGNs) and, in particular, of blazars. In this work, we extend the two-component idea to the {gamma}-ray emission and assume that the total {gamma}-ray output of blazars consists of relativistically beamed and unbeamed components. The basic idea leverages the correlation between the radio core-dominance parameter and the {gamma}-ray beaming factor. To do so, we evaluate this correlation for a large sample of 584 blazars taken from the fourth source catalog of the Fermi Large Area Telescope (Fermi-LAT) and correlated their {gamma}-ray core-dominance parameters with radio core-dominance parameters. The {gamma}-ray beaming factor is then used to estimate the beamed and unbeamed components. Our analysis confirms that the {gamma}-ray emission in blazars is mainly from the beamed component.

Keywords
  1. Active galactic nuclei
  2. Quasars
  3. Redshifted
  4. Radio sources
Bibliographic source Bibcode
2020PASP..132k4102P
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASP/132/K4102
IVOA Identifier IVOID
ivo://CDS.VizieR/J/PASP/132/K4102

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASP/132/K4102
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PASP/132/K4102
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PASP/132/K4102
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/PASP/132/K4102/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/PASP/132/K4102/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PASP/132/K4102/table1?

History

2021-03-04T10:32:56Z
Resource record created
2021-03-04T10:32:56Z
Created
2021-09-06T12:49:32Z
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