arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0909.3843astro-ph.HE
收藏

磁星候选者AXP 1E1547.0-5408周围脉冲星风星云的发现

The discovery of a pulsar wind nebula around the magnetar candidate AXP 1E1547.0-5408

Jacco Vink, Aya Bamba

摘要:

我们报告的异常X射线脉冲星AXP 1E1547.0-5408使用钱德拉X射线卫星的档案数据的扩展发射的检测。扩展的辐射由一个45 arsec的内侧部分和一个2.9 arcmin的外侧部分组成,这与之前在射电中探测到的超新星遗迹壳层相吻合。我们认为,在内部的扩展发射是一个脉冲星风星云,这将是第一个检测到的脉冲星风星云周围的磁星候选人的结果。它的X射线光度与脉冲星自旋下降功率之比与其他年轻的脉冲星风星云相当,但它的X射线光谱比大多数脉冲星风星云陡峭。我们讨论的磁星演化的背景下,这个源的重要性。

英文摘要:

We report the detection of extended emission around the anomalous X-ray pulsar AXP 1E1547.0-5408 using archival data of the Chandra X-ray satellite. The extended emission consists of an inner part, with an extent of 45arsec and an outer part with an outer radius of 2.9arcmin, which coincides with a supernova remnant shell previously detected in the radio. We argue that the extended emission in the inner part is the result of a pulsar wind nebula, which would be the first detected pulsar wind nebula around a magnetar candidate. Its ratio of X-ray luminosity to pulsar spin-down power is comparable to that of other young pulsar wind nebulae, but its X-ray spectrum is steeper than most pulsar wind nebulae. We discuss the importance of this source in the context of magnetar 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。

↑