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arXiv 1502.07062astro-ph.SRgr-qc
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脉冲星故障模型

Models of Pulsar Glitches

Brynmor Haskell, Andrew Melatos

摘要:

射电望远镜为我们提供了宇宙中最稳定的时钟。尽管如此,仍有几颗恒星会出现突然的自旋加速现象,即所谓的小故障。在它们首次被发现后的40多年里,这些现象的确切起源仍然存在争议。一般认为,它们是恒星内部超流体成分的观测表现,并提供了对极端密度下物质动力学的洞察。近年来,理论和观测方面都取得了一些进展,为我们了解中子星内部动力学和可能的故障机制迈出了重要一步。在这篇文章中,我们回顾了已经提出的主要故障模型,并根据当前的观察结果讨论了我们的理解。

英文摘要:

Radio pulsars provide us with some of the most stable clocks in the universe. Nevertheless several pulsars exhibit sudden spin-up events, known as glitches. More than forty years after their first discovery, the exact origin of these phenomena is still open to debate. It is generally thought that they an observational manifestation of a superfluid component in the stellar interior and provide an insight into the dynamics of matter at extreme densities. In recent years there have been several advances on both the theoretical and observational side, that have provided significant steps forward in our understanding of neutron star interior dynamics and possible glitch mechanisms. In this article we review the main glitch models that have been proposed and discuss our understanding, in the light of current observations.

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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