太阳和恒星核反应中的动态屏蔽
Dynamic screening in solar and stellar nuclear reactions
摘要：
在太阳和恒星内部的热而致密的等离子体中，库仑相互作用被周围的等离子体屏蔽。虽然标准的静态屏蔽萨耳彼得近似被广泛接受，并用于恒星建模，动态屏蔽的问题已经重新审视。特别是，Sznov和Sznov将分子动力学的技术应用于太阳核心的条件，以数值方式确定动态屏蔽效应。通过直接计算库仑相互作用引起的离子和电子的运动，他们计算了屏蔽效应，而没有萨尔彼得近似中固有的平均场假设。在这里，我们重现他们的数值分析的屏蔽能量的等离子体的太阳能核心和得出的结论是，动态屏蔽的影响是相关的，并应包括在处理的等离子体，特别是在恒星核反应率的计算。
英文摘要：
In the hot, dense plasma of solar and stellar interiors, the Coulomb interaction is screened by the surrounding plasma. Although the standard Salpeter approximation for static screening is widely accepted and used in stellar modeling, the question of dynamic screening has been revisited. In particular, Shaviv and Shaviv apply the techniques of molecular dynamics to the conditions in the solar core in order to numerically determine the dynamic screening effect. By directly calculating the motion of ions and electrons due to Coulomb interactions, they compute the effect of screening without the mean-field assumption inherent in the Salpeter approximation. Here we reproduce their numerical analysis of the screening energy in the plasma of the solar core and conclude that the effects of dynamic screening are relevant and should be included in the treatment of the plasma, especially in the computation of stellar nuclear reaction rates.
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