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arXiv 2202.04368astro-ph.HE
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银河系高质量费米- LAT X射线双星布居

The Galactic high mass X-ray binary population with Fermi -LAT

Max Harvey, Cameron B. Rulten, Paula M. Chadwick

摘要:

我们在12.5年的Fermi-LAT数据和10年的点源目录中搜索了114个银河系高质量X射线双星的γ射线发射,其中包括4个研究得很好的编目源。当伽玛射线过剩出现在空间上与X射线双星重合时,进行进一步的研究以确定这种过剩是否是双星系统本身物理过程的产物。我们确定的伽马射线过剩符合20个高质量的X射线双星,有很少或根本没有以前的伽马射线发射的证据。然而,我们发现其中许多是由于源混淆或伽马射线背景引起的假阳性。尽管如此,在几个新的系统中,特别是包括1A 0535+262,RX J2030.5+4751和SAX J1324.4-6200,确定了暂时但有希望的伽马射线发射指标。

英文摘要:

We search for gamma-ray emission from 114 Galactic high mass X-ray binaries, including 4 well studied catalogued sources, in 12.5 years of Fermi-LAT data in conjunction with the 10-year point source catalogue. Where a gamma-ray excess appears to be spatially coincident with an X-ray binary, further investigation is performed to ascertain whether this excess is the product of physical processes within the binary system itself. We identify gamma-ray excesses coincident with 20 high mass X-ray binaries where there is little or no prior evidence for gamma-ray emission. However, we find that many of these are false positives caused by source confusion or the gamma-ray background. Nonetheless, tentative but promising indicators of gamma-ray emission are identified for several new systems, notably including 1A 0535+262, RX J2030.5+4751 and SAX J1324.4-6200.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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