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arXiv 0708.4345astro-ph
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核心坍缩超新星爆炸中核液体的沸腾

Boiling of nuclear liquid in core-collapse supernova explosions

Peter Fomin, Dmytro Iakubovskyi, Yuri Shtanov

摘要:

研究了II型超新星核塌缩过程中形成的原中子星内核中核液体沸腾不稳定性的可能性。我们导出了沸腾发生的一个简单判据。利用这一判据,我们发现在原中子星内部实现的条件下,沸腾是完全可能的。我们讨论了这个过程的后果,如在沸腾区的传热速率和压力的增加。我们期望,考虑到这种影响,在传统的中微子驱动的延迟冲击机制的II型超新星爆炸可以增加爆炸能量和减少质量的中子星遗迹。

英文摘要:

We investigate the possibility of boiling instability of nuclear liquid in the inner core of the proto-neutron star formed in the core collapse of a type II supernova. We derive a simple criterion for boiling to occur. Using this criterion for one of best described equations of state of supernova matter, we find that boiling is quite possible under the conditions realized inside the proto-neutron star. We discuss consequences of this process such as the increase of heat transfer rate and pressure in the boiling region. We expect that taking this effect into account in the conventional neutrino-driven delayed-shock mechanism of type II supernova explosions can increase the explosion energy and reduce the mass of the neutron-star remnant.

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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