报告题目：Ecosystem of Nearby Disk Galaxies 

 　 报 告 人：王青德教授（Daniel Wang，University of Massachusetts）

　　报告摘要：Disk galaxies are the dynamic ecosystem of many species. I will review recent X-ray observations that reveal an otherwise hidden species and its energetic interplay with other components of such galaxies. I will focus on answering four questions: 1. How do X-ray properties vary among galaxies? 2. Does the X-ray emission trace the accretion or feedback of galaxies? 3. What is the nature of the X-ray emission? 4. How can one conduct an X-ray tomography of a galaxy? I will also discuss how ongoing/future radio and X-ray observations can further advance our understanding of the galaxy ecosystem.

　　报告时间：2013年10月25日（周五）下午15：30

　　报告地点：苏富特三楼会议室

　　在正式报告开始之前，将向王青德教授颁发南京大学“宜兴讲座教授”聘书。欢迎参加！

　　预告：下周的论坛将由厦门大学的王俊峰教授作报告。关于论坛的最新安排请参考http://astronomy.nju.edu.cn/astroforum/

欢迎各位老师、同学参加！

　　                                             南京大学天文与空间科学学院