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arXiv · 1212.0350

VERITAS and H.E.S.S. observations of the gamma-ray binary HESS J0632+057

Pol Bordas·Gernot Maier
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Abstract

HESS J0632+057 has been recently identified as a new gamma-ray binary system. The source, located in the Monoceros region and associated with the massive Be star MWC 148, shows variability from radio to very high energy (VHE) gamma-rays, displaying a maximum of its non-thermal emission about 100 days after periastron passage (at orbital phases close to 0.3). We present here the results obtained with the VERITAS and H.E.S.S Cherenkov telescopes spanning a wide time interval from 2004 to 2012. The source is detected at TeV gamma-rays at a high significance level at orbital phase 0.3. We also report for the first time TeV observations belonging to orbital phases never explored so far. The VHE gamma-ray results are discussed in a multiwavelength context, focusing on contemporaneous observations obtained with the Swift-XRT.

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Pol Bordas, Gernot Maier. 2012-12-03. VERITAS and H.E.S.S. observations of the gamma-ray binary HESS J0632+057. https://doi.org/10.1063/1.4772273

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