标题： TeV超新星遗迹壳HESS J1731-347及其周围环境 显示英文标题

标题： The TeV supernova remnant shell HESS J1731-347 and its surroundings

摘要： HESS J1731-347是一个壳状超新星遗迹，同时发射TeV伽马射线和非热X射线光子，并且在空间上与无线电SNR G353.6-0.7一致。 文献中讨论了强子和轻子情景（或两者的混合）来解释该天体的TeV辐射。2011年，在源（HESS J1729-345）附近的区域也发现了一个$\gamma$射线过剩。 在这里我们展示了利用现已可用的额外H.E.S.S.数据获得的更新分析结果。 除了HESS J1731-347之外，分析还更详细地揭示了相邻的TeV源HESS J1729-345的辐射形态以及两个源之间的辐射。 这些结果使我们能够将超新星遗迹外部的TeV辐射与分子气体示踪剂相关联，并用宇宙射线逃逸的情景来验证数据。 显示英文摘要

摘要： HESS J1731-347 is a shell-type supernova remnant emitting both TeV gamma rays and non-thermal X-ray photons, spatially coincident with the radio SNR G353.6-0.7. Hadronic and leptonic scenarios (or a blend of both) are discussed in the literature to explain the TeV emission from the object. In 2011, a $\gamma$-ray excess was also found in the neighborhood of the source (HESS J1729-345). Here we present results of an updated analysis obtained with the meanwhile available additional H.E.S.S. data. Beyond HESS J1731-347, the analysis reveals the morphology of the emission of the adjacent TeV source HESS J1729-345 and the emission in between the two sources in greater detail. The results permit us to correlate the TeV emission outside of the SNR with molecular gas tracers, and to confront the data with scenarios in which the TeV emission outside the SNR is produced by escaping cosmic rays.