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The RoboPol Program: Optical Polarimetric Monitoring of Blazars

1,2,3,* and 1,2,*
1
Physics Department & Institute of Theoretical & Computational Physics, University of Crete, 71003 Heraklion, Crete, Greece
2
IESL & Institute of Astrophysics, Foundation for Research and Technology-Hellas, 71110 Heraklion, Crete, Greece
3
Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
*
Authors to whom correspondence should be addressed.
Galaxies 2019, 7(2), 46; https://doi.org/10.3390/galaxies7020046
Received: 28 February 2019 / Revised: 4 April 2019 / Accepted: 8 April 2019 / Published: 10 April 2019
(This article belongs to the Special Issue Monitoring the Non-Thermal Universe)
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Abstract

After three years of polarimetric monitoring of blazars, the RoboPol project has uncovered several key characteristics of polarimetric rotations in the optical for these most variable sources. The most important of these is that polarization properties of the synchrotron emission in the optical appear to be directly linked with gamma-ray activity. In this paper, we discuss the evidence for this connection, as well as the broader features of polarimetric behavior in blazars that are key in making progress with theoretical modeling of blazar emission. View Full-Text
Keywords: active galaxies; blazars; polarization; gamma rays; high energy; monitoring active galaxies; blazars; polarization; gamma rays; high energy; monitoring
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Blinov, D.; Pavlidou, V. The RoboPol Program: Optical Polarimetric Monitoring of Blazars. Galaxies 2019, 7, 46.

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