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arXiv 1208.2033astro-ph.HEastro-ph.IM
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用中子星的VHE辐射进行洛伦兹不变性检验的前景

Prospects of performing Lorentz invariance tests with VHE emission from pulsars

A. Nepomuk Otte

摘要:

伽马射线观测提供了洛伦兹不变性破坏(LIV)的敏感测试。目前,最敏感的测试来自对瞬变事件、伽马射线暴和活动星系核的观测。瞬变的缺点是通常不可能通过不同的实验进行独立的确认,并且不能通过更长的暴露来改善限值。脉冲星没有这些缺点。到目前为止,由于极限不具有竞争性,所以没有认真考虑用双光子来检验洛伦兹不变性。VERITAS合作最近报告了蟹状星云脉冲星100 GeV以上脉冲辐射的探测。该测量可用于限制LIV效应,其灵敏度可与一些最佳可用限制竞争。鉴于这一意想不到的结果,我们讨论的前景是什么做LIV测试的甚高能量的伽玛射线辐射的恒星。

英文摘要:

Gamma-ray observations provide sensitive tests of Lorentz invariance violation (LIV). At present the most sensitive tests come from observations of transient events, gamma-ray bursts and flaring AGN. Disadvantages of transients are that an independent confirmation by a different experiment is often not possible and that limits cannot be improved with a longer exposure. Pulsars do not have these disadvantages. Testing Lorentz invariance with pulsars was not considered seriously so far because limits were not competitive. The VERITAS collaboration has recently reported the detection of pulsed emission from the Crab pulsar above 100 GeV. This measurement can be used to constrain LIV effects with a sensitivity that is competitive with some of the best available limits. In view of this unexpected result we discuss what the prospects are of doing LIV tests with very-high energy gamma-ray emission from 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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