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arXiv 0709.2550astro-ph
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麒麟座甚高能gamma-ray源

The Monoceros very-high-energy gamma-ray source

A. Fiasson, J. A. Hinton, Y. Gallant, A. Marcowith, O. Reimer, G. Rowell

摘要:

H.E.S.S.望远镜阵列观测到了复杂的麒麟座环形SNR/玫瑰星云区域,其中包含未识别的高能EGRET源和潜在的甚高能伽马射线源。我们宣布发现了一个新的点状VHE γ射线源HESS J 0632 +057。它位于Monoceros SNR的边缘附近,在其他波长处没有明确的对应物。NANTEN望远镜的数据已用于研究强子与附近分子云的相互作用。我们没有发现明显的关联。VHE伽马射线发射可能与低能伽马射线源3EG J 0634 +0521、弱X射线源1 RXS J063258.3+054857和Be星MWC 148有关。

英文摘要:

The H.E.S.S. telescope array has observed the complex Monoceros Loop SNR/Rosette Nebula region which contains unidentified high energy EGRET sources and potential very-high-energy (VHE) gamma-ray source. We announce the discovery of a new point-like VHE gamma-ray sources, HESS J0632+057. It is located close to the rim of the Monoceros SNR and has no clear counterpart at other wavelengths. Data from the NANTEN telescope have been used to investigate hadronic interactions with nearby molecular clouds. We found no evidence for a clear association. The VHE gamma-ray emission is possibly associated with the lower energy gamma-ray source 3EG J0634+0521, a weak X-ray source 1RXS J063258.3+054857 and the Be-star MWC 148.

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