Overview of non-transient gamma-ray binaries and prospects for the Cherenkov Telescope Array

We simulate the spectral behaviour of the non-transient gamma-ray binaries using archival observations as a reference. With this we test the CTA capability to measure the sources' spectral parameters and detect variability on various time scales. We review the known properties of gamma-ray bina...

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Bibliographic Details
Published in:arXiv.org 2019-09
Main Authors: Chernyakova, M, Malyshev, D, Paizis, A, La Palombara, N, Balbo, M, Walter, R, Hnatyk, B, B van Soelen, Romano, P, Munar-Adrover, P, Vovk, Ie, Piano, G, Capitanio, F, Falceta-Goncalves, D, Landoni, M, Luque-Escamilla, P L, Marti, J, Paredes, J M, Ribo, M, Safi-Harb, S, Saha, L, Sidoli, L, Vercellone, S
Format: Article
Language:English
Subjects:
Computer simulation
Gamma rays
Spectra
Time
Online Access:Get full text
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Summary:We simulate the spectral behaviour of the non-transient gamma-ray binaries using archival observations as a reference. With this we test the CTA capability to measure the sources' spectral parameters and detect variability on various time scales. We review the known properties of gamma-ray binaries and the theoretical models that have been used to describe their spectral and timing characteristics. We show that CTA is capable of studying these sources on time scales comparable to their characteristic variability time scales. For most of the binaries, the unprecedented sensitivity of CTA will allow the spectral evolution to be studied on a time scale as short as 30 min. This will enable a direct comparison of the TeV and lower energy (radio to GeV) properties of these sources from simultaneous observations. We also review the source-specific questions that can be addressed with such high-accuracy CTA measurements.
ISSN:2331-8422
DOI:10.48550/arxiv.1909.11018