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arXiv 1105.2125gr-qcastro-ph.HE
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中子星并合产生的引力波和中微子辐射

Gravitational waves and neutrino emission from the merger of binary neutron stars

Yuichiro Sekiguchi, Kenta Kiuchi, Koutarou Kyutoku, Masaru Shibata

摘要:

首次在完全广义相对论下,结合有限温度状态方程和中微子冷却,对双中子星并合过程进行了数值模拟.结果表明,对于这个刚性状态方程,对于总质量为$\alt 3.0M_{\odot}$的中子星,其寿命($\gg 10$ ms)是长的.结果表明,HMNS的典型总中微子光度为$\sim 3$ ergs/s,在$f=2.1$-2.5 kHz处,HMNS的引力波有效振幅为4-$6 \times 10^{-22}$,源距为100 Mpc。我们还首次给出了黑洞形成时的中微子光度曲线。

英文摘要:

Numerical simulations for the merger of binary neutron stars are performed in full general relativity incorporating a finite-temperature (Shen's) equation of state (EOS) and neutrino cooling for the first time. It is found that for this stiff EOS, a hypermassive neutron star (HMNS) with a long lifetime ($\gg 10$ ms) is the outcome for the total mass $\alt 3.0M_{\odot}$. It is shown that the typical total neutrino luminosity of the HMNS is $\sim 3$--$8\times 10^{53}$ ergs/s and the effective amplitude of gravitational waves from the HMNS is 4--$6 \times 10^{-22}$ at $f=2.1$--2.5 kHz for a source distance of 100 Mpc. We also present the neutrino luminosity curve when a black hole is formed for the first time.

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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