NSF East Asia and Pacific Summer Institute (EAPSI) for FY 2013 in China

这一行动资助了佐治亚大学的Renata Cumbee于2013年夏天在北京的中国科学院大学材料科学与光电技术学院开展了一个数学和物理科学领域的研究项目，中国。该项目的标题是“高电荷态离子与原子的碰撞：应用于太阳系中的X射线发射。”为了提高天体物理学中现有X射线模型的质量，该项目使用了屈教授团队提出的关于重要太阳风离子的电荷交换碰撞过程的显式量子力学截面计算，以及与日球层中性原子碰撞的速度，这使得利用当前的X射线观测所需的详细光谱建模成为可能。该项目对重要的太阳风离子Ne~(9+)和Mg~(11+)与中性氢碰撞的重要碰撞系统进行了计算。计算范围从10 eV/u到50keV/u，并包括了所有重要的n，L，S分辨态的态选择截面。特别是，这项工作着重于在量子分辨n，L，S态中产生的非平衡分布。这个项目将对促进我们对原子碰撞和太阳风与日光层相互作用的理解产生直接影响。EAPSI奖学金的广泛影响包括为研究员提供美国以外的第一手研究经验；介绍各自所在地区的科学、科学政策和科学基础设施；以及对社会、文化和语言的定位。这些活动符合NSF的目标，即在其科学家、工程师和教育工作者的职业生涯早期为国际合作进行教育，从而确保拥有一支具有全球意识的美国科学队伍。此外，当EAPSI奖学金完成后，该研究员将有机会在她的研究领域培训其他研究生，并通过研讨会，她将能够在未来几年招募学生申请该奖学金。

This action funds Renata Cumbee of the University of Georgia to conduct a research project in the Mathematical and Physical Sciences area during the summer of 2013 at the College of Material Sciences and Optoelectronic Technology at the University of the Chinese Academy of Sciences in Beijing, China. The project title is "Highly-Charged Ion Collisions with Atoms: Applications to X-ray Emission in the Solar System." The host scientist is Prof. Yizhi Qu.To improve the quality of current x-ray models in astrophysics, this project uses explicit quantum-mechanical cross section calculations produced by Prof. Qu's group for the collisional process of charge exchange for important solar wind ions and velocities colliding with heliospheric neutral atoms which enables detailed spectral modeling needed to exploit current X-ray observations. The project performs the calculations for the important collision systems of important solar wind ions Ne9+ and Mg11+ colliding with neutral H. The calculations are performed over the relevant collision energies, 10 eV/u to 50 keV/u, and include state selective cross sections to all important n, l, S-resolved states. In particular, this work focuses on the resulting nonequilibrium distributions created in the quantum-resolved n, l, S states. This project will have a direct impact on advancing our understanding of atomic collisions and the solar wind interaction with the heliosphere.Broader impacts of an EAPSI fellowship include providing the Fellow a first-hand research experience outside the U.S.; an introduction to the science, science policy, and scientific infrastructure of the respective location; and an orientation to the society, culture and language. These activities meet the NSF goal to educate for international collaborations early in the career of its scientists, engineers, and educators, thus ensuring a globally aware U.S. scientific workforce. Furthermore, when the EAPSI fellowship is complete, the Fellow will have the opportunity to train other graduate students in her field of research and through seminars, she will be able to recruit students to apply to this fellowship in future years.