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arXiv 0906.3833astro-ph.HEastro-ph.COastro-ph.SR
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用引力波和中微子探测长伽马射线暴和超新星的中心引擎

Probing the central engine of long gamma-ray bursts and hypernovae with gravitational waves and neutrinos

Yudai Suwa, Kohta Murase

摘要:

作为长伽马射线暴(GRB)和超超新星(HNe)的核心引擎,有两种常见的可行能源候选者,中微子湮灭和磁场。我们研究了伴随这两种机制的引力波发射。特别是,我们专注于从一个巨大的黑洞周围的超吸积盘中微子产生的GW信号。我们表明,中微子诱导的GWs是可检测的$\sim$ 1 Mpc的事件由LISA和$\sim$ 100 Mpc的DECIGO/BBO,如果中央引擎是由中微子。GW信号依赖于视角,它们与中微子信号是反关联的。但是,同时中微子检测也是预期的,并有助于诊断爆炸机制时,后来的电磁观测使我们能够确定来源。GW和中微子观测对于探测不产生即时发射的阻塞喷流以及成功的喷流是潜在有用的。即使在没有探测到的情况下,对GWs和中微子的观测也可能对GRBs和HNe的核心引擎产生有益的影响。

英文摘要:

There are the two common candidates as the viable energy source for the central engine of long gamma-ray bursts (GRBs) and hypernovae (HNe), neutrino annihilation and magnetic fields. We investigate gravitational wave (GW) emission accompanied by these two mechanisms. Especially, we focus on GW signals produced by neutrinos from a hyper-accreting disk around a massive black hole. We show that neutrino-induced GWs are detectable for $\sim$1 Mpc events by LISA and $\sim$ 100 Mpc by DECIGO/BBO, if the central engine is powered by neutrinos. The GW signals depend on the viewing angle and they are anti-correlated with neutrino ones. But, simultaneous neutrino detections are also expected, and helpful for diagnosing the explosion mechanism when later electromagnetic observations enable us to identify the source. GW and neutrino observations are potentially useful for probing choked jets that do not produce prompt emission, as well as successful jets. Even in non-detection cases, observations of GWs and neutrinos could lead to profitable implications for the central engine of GRBs and HNe.

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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