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arXiv 0811.2593nucl-thastro-ph
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超新星物质的统计方法

Statistical approach for supernova matter

A. S. Botvina, I. N. Mishustin

摘要:

我们制定了一个统计模型描述的核组成和状态方程的恒星物质的亚核密度和温度高达20兆电子伏,这是预计在大质量恒星的崩溃和爆炸。该模型在统计平衡条件下,考虑了核相互作用、电磁相互作用和各种粒子间的弱相互作用。我们强调的重要性,现实的描述的核组成的理解恒星动力学和核合成。结果表明,核多重碎裂反应研究中积累的经验可以用于更好地模拟恒星介质的性质。

英文摘要:

We formulate a statistical model for description of nuclear composition and equation of state of stellar matter at subnuclear densities and temperature up to 20 MeV, which are expected during the collapse and explosion of massive stars. The model includes nuclear, electromagnetic and weak interactions between all kinds of particles, under condition of statistical equilibrium. We emphasize importance of realistic description of the nuclear composition for understanding stellar dynamics and nucleosynthesis. It is demonstrated that the experience accumulated in studies of nuclear multifragmentation reactions can be used for better modelling properties of stellar medium.

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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