Blazar candidates behind the Magellanic Clouds Virtual Observatory Resource

Authors
  1. Zywucka N.
  2. Goyal A.
  3. Jamrozy M.
  4. Stawarz L.
  5. Ostrowski M.
  6. Kozlowski S.,Udalski A.
  7. Published by
    CDS
Abstract

We report the identification of blazar candidates behind the Magellanic Clouds. The objects were selected from the Magellanic Quasars Survey (MQS), which targeted the entire Large Magellanic Cloud (LMC) and 70% of the Small Magellanic Cloud (SMC). Among the 758 MQS quasars and 898 of the unidentified (featureless spectra) objects, we identified a sample of 44 blazar candidates, including 27 flat-spectrum radio quasars and 17 BL Lacertae objects, respectively. All the blazar candidates from our sample were identified with respect to their radio, optical, and midinfrared properties. The newly selected blazar candidates possess the long-term, multicolor photometric data from the Optical Gravitational Lensing Experiment, multicolor midinfrared observations, and archival radio data for one frequency at least. In addition, for nine of them, the radio polarization data are available. With such data, these objects can be used to study the physics behind the blazar variability detected in the optical and midinfrared bands, as a tool to investigate magnetic field geometry of the LMC and SMC, and as an exemplary sample of point-like sources most likely detectable in the {gamma}-ray range with the newly emerging Cherenkov Telescope Array.

Keywords
  1. BL Lacertae objects
  2. Active galactic nuclei
  3. Quasars
  4. Magellanic Clouds
  5. Infrared photometry
  6. Optical astronomy
  7. Photometry
  8. Radio astronomy
  9. Redshifted
  10. Surveys
Bibliographic source Bibcode
2018ApJ...867..131Z
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/867/131
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/867/131
Document Object Identifer DOI
doi:10.26093/cds/vizier.18670131

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/867/131
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/867/131
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/867/131
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/ApJ/867/131/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/867/131/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/867/131/table3?

History

2019-10-23T14:40:07Z
Resource record created
2019-10-23T14:40:07Z
Created
2021-02-23T11:07:06Z
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