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arXiv 2204.06147astro-ph.HE
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3 HWC J1954 +286区域的高能研究:可能探测到超新星遗迹G65 .1+0.6的Gamma-ray

High-energy studies of the 3HWC J1954+286 region: likely Gamma-ray detection of the supernova remnant G65.1+0.6

Y. Xing, D. Zheng, Z. Wang, X. Zhang, Y. Chen, G. Xiang

摘要:

我们对银河系TeV源3 HWC J1954+286区域进行了高能研究,它的位置与PSR~J1954+2836和超新星遗迹(SNR)G65.1+0.6的位置相吻合。通过分析由{ \it the Fermi Gamma-ray Space Telescope}上的LAT获得的GeV $γ$ -ray数据,我们能够将脉冲星的辐射与该区域的辐射分离。过量的幂律-在该地区的$\sim 6σ$显着水平的发射被发现,我们解释为所产生的SNR~G65.1+0.6。在低显著性检测的情况下,强子或轻子模型都可以提供对幂律谱的拟合。结合脉冲星的性质和信噪比,讨论了TeV源的可能来源,认为TeV源可能是与脉冲星有关的TeV晕。

英文摘要:

We carry out high-energy studies of the region of the Galactic TeV source 3HWC J1954+286, whose location coincides with those of PSR~J1954+2836 and supernova remnant (SNR) G65.1+0.6. Analyzing the GeV $γ$-ray data obtained with the Large Area Telescope (LAT) onboard {\it the Fermi Gamma-ray Space Telescope}, we are able to separate the pulsar's emission from that of the region. Excess power-law--like emission of a $\sim 6σ$ significance level at the region is found, for which we explain as arising from the SNR~G65.1+0.6. Given the low-significance detection, either a hadronic or a leptonic model can provide a fit to the power-law spectrum. Considering the properties of the pulsar and the SNR, we discuss the possible origin of the TeV source, and suggest that it is likely the TeV halo associated with the pulsar.

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