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arXiv 1707.04024astro-ph.HE
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TeV脉冲星风星云演化的总体观点

The population point of view on the evolution of TeV pulsar wind nebulae

S. Klepser, Y. Gallant, M. Mayer, K. Valerius

摘要:

为了研究TeV脉冲星风星云的性质和演化,我们研究了H.E.S.S.银河平面巡天,连同文献中其他几个已知的探测,以及从H.E.S.S巡天中提取的上限。这些数据表现出TeV的表面亮度与脉冲星自旋下降功率的相关性。这似乎是由TeV扩展的增加和TeV光度随着自旋下降功率的降低而降低引起的。我们还发现,与风星云中心的年龄约10 kyr的脉冲星的偏移量往往大于可以解释的脉冲星自行,可能是由于一个不对称的环境。这些和其他结果将被提交,并把背景下的TeV脉冲星风星云演化的基本建模。

英文摘要:

To investigate the nature and evolution of TeV pulsar wind nebulae, we examine the firmly identified PWNe in the H.E.S.S. Galactic Plane Survey, along with the few other known detections from the literature, as well as the upper limits extracted from the H.E.S.S survey. These data exhibit a correlation of TeV surface brightness with pulsar spin-down power. It appears to be caused by both an increase of TeV extension and a decrease of TeV luminosity with decreasing spin-down power. We also find that the offsets of pulsars with ages around 10 kyr with respect to the wind nebula centres are frequently larger than can be plausibly explained by pulsar proper motion and could be due to an asymmetric environment. These and other results will be presented and put to context with a basic modelling of TeV pulsar wind nebula evolution.

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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