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Galaxies 2017, 5(4), 88; doi:10.3390/galaxies5040088

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

1
Astronomical Observatory, Jagiellonian University, ul. Orla 171, 30-244 Kraków, Poland
2
Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
*
Author to whom correspondence should be addressed.
Received: 30 October 2017 / Revised: 11 November 2017 / Accepted: 22 November 2017 / Published: 28 November 2017
(This article belongs to the Special Issue Polarised Emission from Astrophysical Jets)
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Abstract

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. View Full-Text
Keywords: galaxies: active; flat spectrum radio quasars and BL Lacertae blazars; individual: Small and Large Magellanic Clouds galaxies: active; flat spectrum radio quasars and BL Lacertae blazars; individual: Small and Large Magellanic Clouds
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Żywucka, N.; Goyal, A.; Jamrozy, M.; Stawarz, Ł.; Ostrowski, M.; Kozłowski, S.; Udalski, A. Identification of the OGLE Blazars behind the Large and Small Magellanic Clouds. Galaxies 2017, 5, 88.

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