arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1606.04895astro-ph.HE
收藏

霍尔波雪崩引起的磁星爆发与地壳破裂

Magnetar Outbursts from Avalanches of Hall Waves and Crustal Failures

Xinyu Li, Yuri Levin, Andrei M. Beloborodov

摘要:

我们探讨霍尔波和磁星地壳内的机械故障之间的相互作用,使用详细的一维模型,考虑温度敏感的塑性流动,热传输和冷却中微子发射,以及地壳运动的磁层的耦合。我们发现,动力学是丰富和加速的快速,短波长的霍尔波是由每个故障发出。波传播并在其他地方造成故障,引发雪崩。我们认为,这些雪崩是在瞬态磁星爆发的可能来源。

英文摘要:

We explore the interaction between Hall waves and mechanical failures inside a magnetar crust, using detailed one-dimentional models that consider temperature-sensitive plastic flow, heat transport and cooling by neutrino emission, as well as the coupling of the crustal motion to the magnetosphere. We find that the dynamics is enriched and accelerated by the fast, short-wavelength Hall waves that are emitted by each failure. The waves propagate and cause failures elsewhere, triggering avalanches. We argue that these avalanches are the likely sources of outbursts in transient magnetars.

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。

↑