Identification of the OGLE Blazars behind the Large and Small Magellanic Clouds

We report the selection of blazar candidates behind the Large and Small Magellanic Clouds. Both flat spectrum radio quasar and BL Lacreate objects were selected based on the long-term, multi-colour Optical Gravitational Lensing Experiment photometric data. We cross-correlated the Magellanic Quasar S...

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Bibliographic Details
Published in:Galaxies 2017-11, Vol.5 (4), p.88
Main Authors: Żywucka, Natalia, Goyal, Arti, Jamrozy, Marek, Stawarz, Łukasz, Ostrowski, Michał, Kozłowski, Szymon, Udalski, Andrzej
Format: Article
Language:English
Subjects:
Blazars
flat spectrum radio quasars and BL Lacertae blazars
galaxies: active
Gravitation
Gravitational lenses
individual: Small and Large Magellanic Clouds
Magellanic clouds
Optical properties
Photometry
Quasars
Radio
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Summary:We report the selection of blazar candidates behind the Large and Small Magellanic Clouds. Both flat spectrum radio quasar and BL Lacreate objects were selected based on the long-term, multi-colour Optical Gravitational Lensing Experiment photometric data. We cross-correlated the Magellanic Quasar Survey catalogue of spectroscopically confirmed quasars and quasar candidates located behind the Magellanic Clouds with the radio data at six frequencies from 0.8 to 20 GHz. Among the 1654 objects visible in optical range, we identified a sample of 44 newly selected blazar candidates, including 27 flat spectrum radio quasars and 17 BL Lacs. We examined selected objects with respect to their radio, optical, and mid-infrared properties.
ISSN:2075-4434
2075-4434
DOI:10.3390/galaxies5040088