EUVI/STEREO对全球日冕波的高节奏观测
High cadence observations of a global coronal wave by EUVI/STEREO
摘要：
我们报告了2007年5月19日在STEREO上EUVI观测到的一个与GOES B9.5耀斑和双重CME事件相关的高节奏大尺度日冕波（所谓的“EIT波”）。EUVI仪器为我们提供了一个前所未有的机会来研究耀斑/CME日冕波的极紫外成像的{ \it动力学}。所研究的日冕波显示出减速，表明是一种自由传播的MHD波。对相关耀斑和爆发的暗条/CME的补充分析暗示，CME膨胀的侧翼引发了波，它只在有限的距离内驱动波。伴随的耀斑非常弱，而且发生得太晚，不能解释波的产生。
英文摘要：
We report a large-scale coronal wave (so-called "EIT wave") observed with high cadence by EUVI onboard STEREO in association with the GOES B9.5 flare and double CME event on 19 May 2007. The EUVI instruments provide us with the unprecedented opportunity to study the {\it dynamics} of flare/CME associated coronal waves imaged in the extreme ultraviolet. The coronal wave under study reveals deceleration, indicative of a freely propagating MHD wave. Complementary analysis of the associated flare and erupting filament/CME hint at wave initiation by the CME expanding flanks, which drive the wave only over a limited distance. The associated flare is very weak and occurs too late to account for the wave initiation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
