The intrinsic gamma-ray spectrum of TXS 0506+056: intergalactic propagation effects

Author:

Saveliev Andrey12ORCID,Alves Batista Rafael3ORCID

Affiliation:

1. Institute of Physics, Mathematics and Information Technology, Immanuel Kant Baltic Federal University, 236041 Kaliningrad, Russia

2. Faculty of Computational Mathematics and Cybernetics, Lomonosov Moscow State University, 119991 Moscow, Russia

3. Department of Astrophysics/IMAPP,Radboud University Nijmegen, NL-6500 GL Nijmegen, The Netherlands

Abstract

ABSTRACT The recent observation of high-energy neutrinos from the 2017 flare of the blazar TXS 0506+056, together with counterparts across the whole electromagnetic spectrum, opens up new possibilities for investigating the properties of this class of objects as well as the traversed medium. Propagation effects such as the attenuation of the very-high-energy gamma-ray component by the extragalactic background light are well known, and usually taken into account when fitting spectral energy distributions of objects. Other effects such as those of intergalactic magnetic fields are, however, often neglected. In this work, we present a comprehensive study of the influence of these fields and the extragalactic background light on the determination of the intrinsic gamma-ray spectrum of this blazar.

Funder

Russian Science Foundation

Fundação de Amparo à Pesquisa do Estado de São Paulo

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

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