Constraints on magnetic field and particle content in blazar jets through optical circular polarization-Reference-Cited by-同舟云学术

Constraints on magnetic field and particle content in blazar jets through optical circular polarization

Published:2021-10-22 Issue:1 Volume:509 Page:L21-L25
ISSN:1745-3925
Container-title:Monthly Notices of the Royal Astronomical Society: Letters
language:en
Short-container-title:

Author:

Liodakis I¹^ORCID,Blinov D²³⁴^ORCID,Potter S B⁵⁶^ORCID,Rieger F M⁷⁸

Affiliation:

1. Finnish Center for Astronomy with ESO, University of Turku, Quantum, Vesilinnantie 5, FI-20014, Finland

2. Institute of Astrophysics, FORTH, GR-71110 Heraklion, Greece

3. Department of Physics, University of Crete, 70013 Heraklion, Greece

4. Department of Astrophysics, St. Petersburg State University, Universitetsky pr. 28, Petrodvoretz, 198504 St. Petersburg, Russia

5. South African Astronomical Observatory, PO Box 9, Observatory, 7935 Cape Town, South Africa

6. Department of Physics, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa

7. Institute for Theoretical Physics (ITP), University of Heidelberg, Philosophenweg 12, 69120 Heidelberg, Germany

8. Max-Planck-Institut für Kernphysik, P.O. Box 103980, 69029 Heidelberg, Germany

Abstract

ABSTRACT Polarization offers a unique view in the physical processes of astrophysical jets. We report on optical circular polarization (CP) observations of two famous blazars, namely 3C 279 and PKS 1510−089, at high linearly polarized states. This is the first time PKS 1510−089 is observed in optical CP. While only upper limits can be extracted from our observing campaign, the non-detection of optical CP allows us to provide meaningful constraints on their magnetic field strength and jet composition. We find that high-energy emission models requiring high magnetic field strength and a low positron fraction can be excluded.

Funder

European Research Council

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

http://academic.oup.com/mnrasl/advance-article-pdf/doi/10.1093/mnrasl/slab118/40820703/slab118.pdf

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