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10/20/16:英国中央兰开夏大学袁丁博士学术报告
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报告人:英国中央兰开夏大学(University of Central Lancashire, Preston) 袁丁博士

时间:2016-10-20上午10:00

地点:南楼208

报告题目:Abnormal Oscillations associated with inhomogeneities in sunspots

报告摘要:In this talk, I will presents sunspot oscillations and its applications in diagnosing the magnetic and thermal structure of a sunspot. In case of a sunspot with inhomogeneities, such as light bridges and stratification, the sunspot oscillations are modified significantly. The inhomogeneities have fine structures in contrast to axial-symmetric sunspots, therefore, their existence in a sunspot will affect the dynamic activities and could be used as a tool for exploring the fine structure of a sunspot.  In the long term, the inhomogeneities plays an significant role in the evolution and morphology of a sunspot, which is a main determinant of explosive events in space weather.

 
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