Cross-match between Swift-BAT & Fermi-LAT 10yrs Virtual Observatory Resource

Authors
  1. Tsuji N.
  2. Yoneda H.
  3. Inoue Y.
  4. Aramaki T.
  5. Karagiorgi G.
  6. Mukherjee R.,Odaka H.
  7. Published by
    CDS
Abstract

We report the results of a cross-match study between the hard X-ray and GeV gamma-ray catalogs, by making use of the latest 105 month Swift-Burst Alert Telescope (BAT) and 10yr Fermi-Large Area Telescope (LAT) catalogs, respectively. The spatial cross-matching between the two catalogs results in the matching of 132 point-like sources, including 5% of false-match sources. Additionally, 24 sources that have been identified as the same identifications are matched. Among the 75 extended sources in the Fermi-LAT catalog, 31 sources have spatial coincidences with at least one Swift-BAT source inside their extent. All the matched sources consist of blazars (>60%), pulsars and pulsar wind nebulae (13%), radio galaxies (7%), binaries (5%), and others. Compared to the original catalogs, the matched sources are characterized by a double-peaked photon index distribution, higher flux, and larger gamma-ray variability index. This difference arises from the different populations of sources, particularly the large proportion of blazars (i.e., flat-spectrum radio quasar and BL Lac). We also report 13 cross-matched and unidentified sources. The matched sources in this study would be promising in the intermediate energy band between the hard X-ray and GeV gamma-ray observations, that is the unexplored MeV gamma-ray domain.

Keywords
  1. gamma-ray-astronomy
  2. x-ray-sources
  3. active-galactic-nuclei
  4. astronomical-object-identification
Bibliographic source Bibcode
2021ApJ...916...28T
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/916/28
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/916/28
Document Object Identifer DOI
doi:10.26093/cds/vizier.19160028

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https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/916/28
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/916/28
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/916/28
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https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/916/28/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/916/28/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/916/28/table1?
IVOA Cone Search SCS
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https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/916/28/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/916/28/table2?

History

2023-01-20T12:58:14Z
Resource record created
2023-01-20T12:58:14Z
Created
2023-02-02T11:00:46Z
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