温暖、致密和弱离子化氦的自由-自由不透明度
材料科学
2009-11-11 v1
摘要
我们研究了温暖、致密的氦在恒星大气条件下的离子化情况和不透明度。我们的研究重点是密度可达 ，温度范围为1000K至10000K。在这些物理条件下， various methods for modeling the ionization equilibrium predict ionization fractions that differ by orders of magnitudes. 此外，氦压力离子化的密度估计范围从 到 之间变化。在此背景下，电子-氦原子逆bremsstrahlung吸收的值高度不确定。我们 presented new results obtained from a non-ideal chemical model for the ionization equilibrium, from Quantum Molecular Dynamics (QMD) simulations, and from the analysis of experimental data to better understand the ionization fraction in fluid helium in the weak ionization limit.
引用
@article{arxiv.cond-mat/0511400,
title = {The Free-Free Opacity in Warm, Dense, and Weakly Ionized Helium},
author = {P. M. Kowalski and S. Mazevet and D. Saumon},
journal= {arXiv preprint arXiv:cond-mat/0511400},
year = {2009}
}
备注
4 pages, 3 figures, 1 table. Accepted for publication in the Proceedings of the 14th APS Topical Conference on Shock Compression of Condensed Matter, Baltimore, MD