Identification of blazar candidates behind Small and Large Magellanic
  Clouds
  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 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 mid-infrared properties. The newly
selected blazar candidates possess the long-term, multi-colour photometric data
from the Optical Gravitational Lensing Experiment, multi-colour mid-infrared
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 mid-infrared 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 $\gamma$-ray range with the newly
emerging Cherenkov Telescope Array.
