题 目：Non-equilibrium Ionization Code and Its Applications

报告人： Dr. 纪丽

MIT Kavli Institute for Astrophysics & Space Research

摘 要:

Non-equilibrium ionization is an important phenomenon related to many astrophysical processes, such as rapid heating or cooling, in which gas may be under-ionized or over-ionized. Current modeling is limited by the equilibrium ionization assumption.

I will emphasize the important role of the non-equilibrium ionization in the theoretical modelings for various plasmas. The generalized NEI code will be introduced both for the collisional ionization and photoionization. In addition, I will review the updated atomic database and atomic processes which are important for the non-equilibrium plasma. The applications of our NEI code in accretion disk corona of HerX-1,line diagnostics in shock flows, warm-hot intergalactic medium will be presented.

时 间：2009年3月27日上午10:00

地 点：（北京西路2号）紫台大楼327教室

紫金山天文台学术委员会学术交流工作委员会

2009年3月25日