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

Author(s)

Saveliev, Andrey ^{[1, 2]} ; Batista, Rafael Alves ^[3]

Affiliation

^[1] Immanuel Kant Baltic Fed Univ, Inst Phys Math & Informat Technol, Kaliningrad 236041 - Russia

^[2] Lomonosov Moscow State Univ, Fac Computat Math & Cybernet, Moscow 119991 - Russia

^[3] Radboud Univ Nijmegen, Dept Astrophys IMAPP, NL-6500 GL Nijmegen - Netherlands

• Document type: Journal article
• Source: Monthly Notices of the Royal Astronomical Society; v. 500, n. 2, p. 2188-2195, JAN 2021.
• Web of Science Citations: 1

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. (AU)

• FAPESP's process: 13/10559-5 - Investigation of high energy and plasma astrophysics phenomena: theory, numerical simulations, observations, and instrument development for the Cherenkov Telescope Array (CTA)
• Grantee: Elisabete Maria de Gouveia Dal Pino
• Support Opportunities: Special Projects
• FAPESP's process: 17/12828-4 - Diffusion, acceleration and propagation of cosmic rays in turbulent astrophysical environments
• Grantee: Rafael Alves Batista
• Support Opportunities: Scholarships in Brazil - Post-Doctoral