简介: |
As in many fields, spectroscopy brings precision to astronomy and astrophysics. It answers the question of what is out there most directly and quantitatively, and reveals the distribution, physical and chemical states, and evolution of baryons in the universe. These are some of the most fundamental (and outstanding) issues that span a broad range of forefront research in the field, from the origin and history of the hot “Local Bubble” (around the Sun), the formation and evolution of galaxies, to the puzzle of “missing baryons” in the present-day universe. In this talk, I will outline the scientific motivations for high throughput, high resolution Xray spectroscopy, describe the technology required and the status of development, and present a concept for a small satellite experiment. I will conclude by discussing technology development, in the context of long-term advancement of X-ray astrophysics, and its broader applications.
Bio: 1987年毕业于中国科技⼤学。当年通过CUSPEA考试赴美留学。1994年在威斯康星⼤学麦迪逊分校物理系获得博⼠学位，主要从事低温X 射线微量热探测器的研制。毕业后就职于麻省理⼯学院空间研究中⼼，参加了Rossi X-ray Timing Explorer X 射线卫星建造、测试、运⾏工作，并⽤此卫星提供的数据开展了一系列黑洞和中⼦星⽅面的研究。从2000年起任普渡⼤学物理系助理教授、副教授、教授，致⼒于高能天体物理研究，致⼒于Very Energetic Radiation Imaging Telescope Array (VERITAS)地⾯γ射线设施的设计和建造。VERITAS 于2007年开始运⾏，对黑洞附近粒⼦加速和辐射机制以及宇宙射线起源的近期研究提供了非常重要的数据。2011年通过国家千⼈计划项⽬受聘于中国科学院粒⼦天体物理重点实验室和高能物理研究所粒⼦天体物理中⼼，主要参与硬X射线调制望远镜卫星项⽬的工作。 |
