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