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arXiv 0912.3822astro-ph.HE
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来自拓扑电流的大脉冲星反冲

Large Pulsar Kicks from Topological Currents

James Charbonneau, Kelsey Hoffman, Jeremy Heyl

摘要:

我们表明,踢产生的拓扑电流可能是负责的大速度看到的一些duplex。大部分的反冲在恒星诞生的第一秒内形成,并产生比相同温度和磁场状态下的中微子反冲大两个数量级的力。由于拓扑电流的性质,恒星的冷却在达到10^9 K之前不会受到影响;此后,电流取代中微子发射成为主要的冷却过程。发生反冲的条件是恒星上有适当薄的地壳;这使我们推测反冲大的恒星是夸克星,反冲小的是中子星。如果这是真的,这将是一个区分夸克星和中子星的好方法。

英文摘要:

We show that kicks generated by topological currents may be responsible for the large velocities seen in a number of pulsars. The majority of the kick builds up within the first second of the star's birth and generates a force about two orders of magnitude larger than a neutrino kick in the same temperature and magnetic field regime. Because of the nature of the topological currents the star's cooling is not affected until it reaches 10^9 K; thereafter the current replaces neutrino emission as the dominant cooling process. A requirement for the kick to occur is a suitably thin crust on the star; this leads us to speculate that pulsars with large kicks are quark stars and those with small kicks are neutron stars. If true this would be an elegant way to distinguish quark stars from neutron stars.

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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