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Optical polarization of gamma-ray bright blazars

Published online by Cambridge University Press:  25 July 2014

Dmitry Blinov
Affiliation:
University of Crete, Greece E-mail: [email protected]
E. Angelakis
Affiliation:
University of Crete, Greece E-mail: [email protected]
M. Balokovic
Affiliation:
University of Crete, Greece E-mail: [email protected]
L. Fuhrmann
Affiliation:
University of Crete, Greece E-mail: [email protected]
T. Hovatta
Affiliation:
University of Crete, Greece E-mail: [email protected]
K. Katarzyski
Affiliation:
University of Crete, Greece E-mail: [email protected]
P. Khodade
Affiliation:
University of Crete, Greece E-mail: [email protected]
O. King
Affiliation:
University of Crete, Greece E-mail: [email protected]
A. Kus
Affiliation:
University of Crete, Greece E-mail: [email protected]
N. Kylafis
Affiliation:
University of Crete, Greece E-mail: [email protected]
I. Myserlis
Affiliation:
University of Crete, Greece E-mail: [email protected]
G. Panopoulou
Affiliation:
University of Crete, Greece E-mail: [email protected]
I. Papadakis
Affiliation:
University of Crete, Greece E-mail: [email protected]
I. Papamastorakis
Affiliation:
University of Crete, Greece E-mail: [email protected]
V. Pavlidou
Affiliation:
University of Crete, Greece E-mail: [email protected]
B. Pazderska
Affiliation:
University of Crete, Greece E-mail: [email protected]
E. Pazderski
Affiliation:
University of Crete, Greece E-mail: [email protected]
T. Pearson
Affiliation:
University of Crete, Greece E-mail: [email protected]
C. Rajarshi
Affiliation:
University of Crete, Greece E-mail: [email protected]
A. Ramaprakash
Affiliation:
University of Crete, Greece E-mail: [email protected]
A. Readhead
Affiliation:
University of Crete, Greece E-mail: [email protected]
P. Reig
Affiliation:
University of Crete, Greece E-mail: [email protected]
R. Rouneq
Affiliation:
University of Crete, Greece E-mail: [email protected]
K. Tassis
Affiliation:
University of Crete, Greece E-mail: [email protected]
A. Zensus
Affiliation:
University of Crete, Greece E-mail: [email protected]
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Abstract

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We report about first results of the RoboPol project. RoboPol is a large-sample, high-cadence, polarimetric monitoring program of blazars in optical wavelengths, using a camera specifically constructed for this project, mounted at the University of Crete's Skinakas Observatory 1.3 m telescope. The analysis of RoboPol data is conducted in conjunction with Fermi LAT gamma-ray data, and multifrequency radio data from the OVRO (Caltech), F-GAMMA (MPIfR), and Torun (NCU) monitoring programs. Using carefully selected samples of gamma-ray bright and weak blazars we investigate a connection between their optical polarization behaviour and variability properties in gamma. We examine a relationship of gamma flares with polarization angle rotations relying on robust statistical criteria. We analyse also the optical polarization variability itself in order to establish some restrictions on physical models of blazars jets.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2014