The Galactic high mass X-ray binary population with Fermi-LAT

Harvey, Max; Rulten, Cameron B; Chadwick, Paula M

doi:10.1093/mnras/stac375

The Galactic high mass X-ray binary population with Fermi-LAT

Harvey, Max; Rulten, Cameron B; Chadwick, Paula M

Authors

Max Harvey max.harvey@durham.ac.uk
PGR Student Doctor of Philosophy

Dr Cameron Rulten cameron.b.rulten@durham.ac.uk
Post Doctoral Research Associate

Professor Paula Chadwick p.m.chadwick@durham.ac.uk
Head Of Department

Abstract

We search for γ-ray emission from 114 Galactic high-mass X-ray binaries, including four well studied catalogued sources, in 12.5 yr of Fermi-LAT data in conjunction with the 10-yr point source catalogue. Where a γ-ray excess appears to be spatially coincident with an X-ray binary, further investigation is performed to ascertain whether this excess is the product of physical processes within the binary system itself. We identify γ-ray excesses coincident with 20 high-mass X-ray binaries where there is little or no prior evidence for γ-ray emission. However, we find that many of these are false positives caused by source confusion or the γ-ray background. None the less, tentative but promising indicators of γ-ray emission are identified for several new systems, notably including 1A 0535+262, RX J2030.5+4751, and SAX J1324.4−6200.

Citation

Harvey, M., Rulten, C. B., & Chadwick, P. M. (2022). The Galactic high mass X-ray binary population with Fermi-LAT. Monthly Notices of the Royal Astronomical Society, 512(1), 1141-1168. https://doi.org/10.1093/mnras/stac375

Journal Article Type	Article
Acceptance Date	Feb 9, 2022
Online Publication Date	Feb 18, 2022
Publication Date	2022-05
Deposit Date	May 26, 2022
Publicly Available Date	May 26, 2022
Journal	Monthly Notices of the Royal Astronomical Society
Print ISSN	0035-8711
Electronic ISSN	1365-2966
Publisher	Royal Astronomical Society
Peer Reviewed	Peer Reviewed
Volume	512
Issue	1
Pages	1141-1168
DOI	https://doi.org/10.1093/mnras/stac375

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This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2022 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.