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arXiv 1008.2891astro-ph.HE
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孤立中子星的X射线辐射

X-ray emission from isolated neutron stars

Sandro Mereghetti

摘要:

X射线辐射是各种孤立中子星(INS)的共同特征,由于具有良好光谱、计时和成像能力的灵敏仪器的出现,X射线观测已成为研究这些天体的重要工具。自X射线天文学诞生以来,人们就已经探测到了来自年轻的高能射电星的非热X射线,而人们长期以来一直在寻找的来自冷却中子星表面的热辐射,现在可以在许多不同年龄、磁场以及可能的表面成分的射电星中进行详细研究。此外,通过X射线观察还发现了INS的其他不同表现。这些新的高能源包括附近的X射线昏暗孤立中子星、超新星遗迹中的中心致密天体、异常X射线脉冲星和软伽马射线中继器,现在加起来已经有几十个被证实的成员,加上许多候选者,使我们能够研究各种在“标准”射电望远镜中无法观察到的现象。

英文摘要:

X-ray emission is a common feature of all varieties of isolated neutron stars (INS) and, thanks to the advent of sensitive instruments with good spectroscopic, timing, and imaging capabilities, X-ray observations have become an essential tool in the study of these objects. Non-thermal X-rays from young, energetic radio pulsars have been detected since the beginning of X-ray astronomy, and the long-sought thermal emission from cooling neutron star's surfaces can now be studied in detail in many pulsars spanning different ages, magnetic fields, and, possibly, surface compositions. In addition, other different manifestations of INS have been discovered with X-ray observations. These new classes of high-energy sources, comprising the nearby X-ray Dim Isolated Neutron Stars, the Central Compact Objects in supernova remnants, the Anomalous X-ray Pulsars, and the Soft Gamma-ray Repeaters, now add up to several tens of confirmed members, plus many candidates, and allow us to study a variety of phenomena unobservable in "standard'' radio pulsars.

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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