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


A multiple type-II burst associated with a coronal transient and its MHD simulation
Authors:TE Gergely  MR Kundu  ST Wu  M Dryer  Z Smith  RT Stewart
Institution:1. Astronomy Program, University of Maryland, College Park, MD 20742, USA;7. University of Alabama, Huntsville, AL 35899, USA;71. Space Environment Laboratory, NOAA, Boulder, CO 80303, USA;2. Division of Radiophysics, CSIRO, Sydney, Australia
Abstract:A large coronal transient took place on 8 May 1981. The transient was related to an M7.7/2B flare and was associated with at least two coronal type II bursts. The velocities of the type II bursts were in the range 1100–1800 kms?1, in excess of the transient velocity of 500–1000 kms?1. Two dimensional positions of the type II radio sources are available from both the Clark Lake and the Culgoora Radio Observatories. We carry out two dimensional MHD simulations of the event, taking into account the observed velocity, position, and size of the type II bursts. We simulate the multiple shocks observed during the event and their interaction, and discuss some results of the simulation.
Keywords:
本文献已被 ScienceDirect 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