报告题目:Rapid Gamma Ray Flaring of Active Galactic Nuclei
报 告 人:Prof. Wei Cui(Purdue University)
报告内容:Gamma-ray emitting active galactic nuclei (AGN) are characterized by variability on a wide range of timescales across nearly the entire electromagnetic spectrum. This is an indication of the dominant role that the jet plays in radiation production. The variability provides a valuable tool to study, in a relatively model-independent way, the emission processes and geometry as well as the energetics of the jet in AGN, not so different from the study of gamma ray bursts. In this talk, I will show recent discoveries of rapid gamma-ray flaring of blazars and discuss the challenges the phenomenon presents to our theoretical understanding of very-high-energy gamma ray production in the jet of AGN.
报告时间:2012年7月19日下午14:00
报告地点:紫台鼓楼大楼317会议室(北京西路2号)
联 系 人:李国亮 83332201
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紫金山天文台学术委员会学术交流工作委员会