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arXiv 0709.2432astro-ph
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PWN候选物HESS J1809-193的形态学研究

Morphological Studies of the PWN Candidate HESS J1809-193

Nu. Komin, S. Carrigan, A. Djannati-Ataï, Y. A. Gallant, K. Kosack, G. Puehlhofer, S. Schwemmer

摘要:

HESS J1809-193是在2006年银河平面巡天的数据中被发现的,随后又进行了几次重新观测。它显示了一个硬伽马射线谱,发射明显延长。它与PSR J1809-1917(一颗高自旋光度脉冲星,足以驱动观测到的伽马射线发射)的邻近,使其成为TeV脉冲星风星云(PWN)的合理候选者。另一方面,在这个区域的天空中,可以发现一些微弱的,放射性的超新星遗迹,使得很难对来源类型做出明确的结论。在这里,我们提出了一个详细的形态学研究最近H.E.S.S.数据,并将结果与钱德拉和无线电数据的X射线测量结果进行比较。与PWN的关联是可能的,但不能排除超新星遗迹的贡献。

英文摘要:

The source HESS J1809-193 was discovered in 2006 in data of the Galactic Plane survey, followed by several re-observations. It shows a hard gamma-ray spectrum and the emission is clearly extended. Its vicinity to PSR J1809-1917, a high spin-down luminosity pulsar powerful enough to drive the observed gamma-ray emission, makes it a plausible candidate for a TeV Pulsar Wind Nebula (PWN). On the other hand, in this region of the sky a number of faint, radio-emitting supernova remnants can be found, making a firm conclusion on the source type difficult. Here we present a detailed morphological study of recent H.E.S.S. data and compare the result with X-ray measurements taken with Chandra and radio data. The association with a PWN is likely, but contributions from supernova remnants cannot be ruled out.

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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