论文标题

Vela Pulsar在2016年故障中闪烁

Flickering of the Vela pulsar during its 2016 glitch

论文作者

Ashton, Gregory, Lasky, Paul D., Nathan, Rowina, Palfreyman, Jim

论文摘要

Vela Pulsar中的中子星故障的第一个脉冲对脉冲观察发现了一个无效的脉搏,暗示了中子恒星的磁层突然中断。连接故障和无效脉冲的唯一物理模型取决于触发或被毛发本身触发的星形脉冲。到目前为止,这是观察Vela Pulsar的50多年来发现的唯一无效脉冲。我们识别出其他五个无效的脉冲,即我们在小故障之前和之后称准杀性数百秒。我们验证在远离故障的数据中找不到此类零。我们推测,准无效与前高地震之前并遵循主地震相关,类似于陆地地震。这意味着在小故障之间建立的能量储层并没有突然释放,而是在小故障时期的几分钟到几小时。

The first pulse-to-pulse observations of a neutron star glitch in the Vela pulsar identified a null pulse hinting at the sudden disruption of the neutron star's magnetosphere. The only physical model connecting the glitch and the null pulse relies on a starquake either triggering, or being triggered by, the glitch itself. Until now, this was the only null pulse identified from over 50 years of observing the Vela pulsar. We identify five other null-like pulses, that we term quasi-nulls, before and after the glitch, separated by hundreds of seconds. We verify that such nulls are not found in data away from the glitch. We speculate that the quasi-nulls are associated with foreshocks and aftershocks preceding and following the main quake, analogously with terrestrial quakes. This implies the energy reservoir built up between glitches is not released suddenly, but over a period of minutes to hours around the time of the glitch.

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