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arXiv · 1303.2018

Multiwavelength Observations of Gamma-ray Binary Candidates

M. Virginia McSwain·Masha Chernyakova·Denis Malishev·Michael De Becker·Stephen Williams
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Abstract

A rare group of high mass X-ray binaries (HMXBs) are known that also exhibit MeV, GeV, and/or TeV emission ("gamma-ray binaries"). Expanding the sample of gamma-ray binaries and identifying unknown Fermi sources are currently of great interest to the community. Based upon their positional coincidence with the unidentified Fermi sources 1FGL J1127.7-6244c and 1FGL J1808.5-1954c, the Be stars HD 99771 and HD 165783 have been proposed as gamma-ray binary candidates. During Fermi Cycle 4, we have performed multiwavelength observations of these sources using XMM-Newton and the CTIO 1.5m telescope. We do not confirm high energy emission from the Be stars. Here we examine other X-ray sources in the field of view that are potential counterparts to the Fermi sources.

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M. Virginia McSwain, Masha Chernyakova, Denis Malishev, Michael De Becker, Stephen Williams. 2013-03-08. Multiwavelength Observations of Gamma-ray Binary Candidates. https://arxiv.org/abs/1303.2018

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