High cadence observations of a global coronal wave by EUVI/STEREO

Abstract

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.

Astrophysical Journal Letters (in press)

References in corpus (1)

• Are "EIT Waves" Fast-Mode MHD Waves?

Cited by in corpus (10)

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• Statistical Analysis of Large-scale EUV Waves Observed by STEREO/EUVI
• Analytic modeling of the Moreton wave kinematics
• Case Study of Four Homologous Large-Scale Coronal Waves Observed on 2010 April 28 and 29
• Spectroscopic Analysis of an EIT Wave/Dimming Observed by Hinode/EIS
• In Situ Heating of the 2007 May 19 CME Ejecta Detected by STEREO/PLASTIC and ACE
• Study of a Prominence Eruption using PROBA2/SWAP and STEREO/EUVI Data
• The energetics of a global shock wave in the low solar corona
• A coronal wave and an asymmetric eruptive filament in SUMER, CDS, EIT, and TRACE co-observations