RoboPol: do optical polarization rotations occur in all blazars?

D. Blinov; V. Pavlidou; I. Papadakis; S. Kiehlmann; I. Liodakis; G. V. Panopoulou; T. J. Pearson; E. Angelakis; M. Baloković; T. Hovatta; V. Joshi; O. G. King; A. Kus; N. Kylafis; A. Mahabal; A. Marecki; I. Myserlis; E. Paleologou; I. Papamastorakis; E. Pazderski; S. Prabhudesai; A. Ramaprakash; A. C. S. Readhead; P. Reig; K. Tassis; J. A. Zensus

doi:10.1093/mnras/stw1732

RoboPol: do optical polarization rotations occur in all blazars?

D. Blinov, V. Pavlidou, I. Papadakis, S. Kiehlmann, I. Liodakis, G. V. Panopoulou, T. J. Pearson, E. Angelakis, M. Baloković, T. Hovatta, V. Joshi, O. G. King, A. Kus, N. Kylafis, A. Mahabal, A. Marecki, I. Myserlis, E. Paleologou, I. Papamastorakis, E. PazderskiS. Prabhudesai, A. Ramaprakash, A. C. S. Readhead, P. Reig, K. Tassis, J. A. Zensus

Metsähovi Radio Observatory

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Abstract

We present a new set of optical polarization plane rotations in blazars, observed during the third year of operation of RoboPol. The entire set of rotation events discovered during three years of observations is analysed with the aim of determining whether these events are inherent in all blazars. It is found that the frequency of the polarization plane rotations varies widely among blazars. This variation cannot be explained either by a difference in the relativistic boosting or by selection effects caused by a difference in the average fractional polarization. We conclude that the rotations are characteristic of a subset of blazars and that they occur as a consequence of their intrinsic properties.

Original language	English
Pages (from-to)	1775-1785
Number of pages	11
Journal	Monthly Notices of the Royal Astronomical Society
Volume	462
Issue number	2
DOIs	https://doi.org/10.1093/mnras/stw1732
Publication status	Published - 21 Oct 2016
MoE publication type	A1 Journal article-refereed

Keywords

polarization
galaxies: active
galaxies: jets
galaxies: nuclei

Access to Document

10.1093/mnras/stw1732

stw1732
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society, 462(2), 1775-1785. DOI: 10.1093/mnras/stw1732 ©: 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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http://adsabs.harvard.edu/abs/2016MNRAS.462.1775B

Metsähovi Radio Observatory
Tammi, J. (Manager)
School of Electrical Engineering
Facility/equipment: Facility

Cite this

Blinov, D., Pavlidou, V., Papadakis, I., Kiehlmann, S., Liodakis, I., Panopoulou, G. V., Pearson, T. J., Angelakis, E., Baloković, M., Hovatta, T., Joshi, V., King, O. G., Kus, A., Kylafis, N., Mahabal, A., Marecki, A., Myserlis, I., Paleologou, E., Papamastorakis, I., ... Zensus, J. A. (2016). RoboPol: do optical polarization rotations occur in all blazars? Monthly Notices of the Royal Astronomical Society, 462(2), 1775-1785. https://doi.org/10.1093/mnras/stw1732

@article{45d3716519c74bbcbc77f0a70736a285,

title = "RoboPol: do optical polarization rotations occur in all blazars?",

abstract = "We present a new set of optical polarization plane rotations in blazars, observed during the third year of operation of RoboPol. The entire set of rotation events discovered during three years of observations is analysed with the aim of determining whether these events are inherent in all blazars. It is found that the frequency of the polarization plane rotations varies widely among blazars. This variation cannot be explained either by a difference in the relativistic boosting or by selection effects caused by a difference in the average fractional polarization. We conclude that the rotations are characteristic of a subset of blazars and that they occur as a consequence of their intrinsic properties.",

keywords = "polarization, galaxies: active, galaxies: jets, galaxies: nuclei",

author = "D. Blinov and V. Pavlidou and I. Papadakis and S. Kiehlmann and I. Liodakis and Panopoulou, {G. V.} and Pearson, {T. J.} and E. Angelakis and M. Balokovi{\'c} and T. Hovatta and V. Joshi and King, {O. G.} and A. Kus and N. Kylafis and A. Mahabal and A. Marecki and I. Myserlis and E. Paleologou and I. Papamastorakis and E. Pazderski and S. Prabhudesai and A. Ramaprakash and Readhead, {A. C. S.} and P. Reig and K. Tassis and Zensus, {J. A.}",

year = "2016",

month = oct,

day = "21",

doi = "10.1093/mnras/stw1732",

language = "English",

volume = "462",

pages = "1775--1785",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",