首页 | 本学科首页   官方微博 | 高级检索  
     检索      


The Magnetic Structure of a Coronal X-Ray Bright Point
Authors:DS Brown  CE Parnell  EE Deluca  L Golub  RA McMULLEN
Institution:(1) Institute of Mathematics, University of St Andrews, St Andrews, KY16 9SS, U.K;(2) Smithsonian Astrophysical Observatory, Cambridge, MA, 02188, U.S.A;(3) Department of Physics, Montana State University, Bozeman, MT, 59717, U.S.A
Abstract:X-ray bright points are small dynamic loop structures that are observed all over the solar corona. The high spatial and temporal resolution of the TRACE instrument allows bright points to be studied in much greater detail than previously possible. This paper focuses on a specific bright point which occurred for about 20 hours on 13–14 June 1998 and examines its dynamic structure in detail. This example suggests that the mechanisms that cause bright points to form and evolve are more complex than previously thought. In this case, reconnection probably plays a major part during the formation and brightening of the loop structure. However, later on the foot points rotate injecting twist into the bright point which may cause an instability to occur with dynamic results. Supplementary material to this paper is available in electronic form at http://dx.doi.org/10.1023/A:1017907406350
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号