论文标题
跟踪谷物凝血和电离的快速方法。 ii。延伸到热电离
Fast methods to track grain coagulation and ionization. II. Extension to thermal ionization
论文作者
论文摘要
热电离是温度t> 10 3 K的关键过程，尤其是在恒星形成期间。电离的增加会导致非理想的磁流失动力学（MHD）的电阻率降低，这对原始磁盘和原恒星形成产生了重大影响。我们开发了在最近的论文中提出的快速计算电离方法的扩展，其中包括热电离。该模型可用于廉价地计算离子和电子的密度以及晶粒每个尺寸的电荷以进行任意尺寸分布。该工具对于多维模拟中的非理想MHD电阻率的自洽计算特别有用，尤其是Protostellar崩溃和原行星磁盘。
Thermal ionization is a critical process at temperatures T > 10 3 K, particularly during star formation. An increase in ionization leads to a decrease in nonideal magnetohydrodynamics (MHD) resistivities, which has a significant impact on protoplanetary disks and protostar formation. We developed an extension of the fast computational ionization method presented in our recent paper to include thermal ionization. The model can be used to inexpensively calculate the density of ions and electrons and the electric charge of each size of grains for an arbitrary size distribution. This tool should be particularly useful for the self-consistent calculation of nonideal MHD resistivities in multidimensional simulations, especially of protostellar collapse and protoplanetary disks.
