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Title:
On the Nature and Genesis of EUV Waves: A Synthesis of Observations from SOHO, STEREO, SDO, and Hinode (Invited Review)
Authors:
Patsourakos, Spiros; Vourlidas, Angelos
Affiliation:
AA(Dept. Physics, Section Astrogeophysics, University of Ioannina), AB(Space Science Division, Naval Research Laboratory)
Publication:
Solar Physics, Volume 281, Issue 1, pp.187-222 (SoPh Homepage)
Publication Date:
11/2012
Origin:
SPRINGER
Keywords:
Corona, active, Coronal mass ejections, Low coronal signatures, Waves, magnetohydrodynamic, propagation, plasma
Abstract Copyright:
(c) 2012: Springer Science+Business Media B.V.
DOI:
10.1007/s11207-012-9988-6
Bibliographic Code:
2012SoPh..281..187P

Abstract

A major, albeit serendipitous, discovery of the SOlar and Heliospheric Observatory mission was the observation by the Extreme Ultraviolet Telescope (EIT) of large-scale extreme ultraviolet (EUV) intensity fronts propagating over a significant fraction of the Sun's surface. These so-called EIT or EUV waves are associated with eruptive phenomena and have been studied intensely. However, their wave nature has been challenged by non-wave (or pseudo-wave) interpretations and the subject remains under debate. A string of recent solar missions has provided a wealth of detailed EUV observations of these waves bringing us closer to resolving the question of their nature. With this review, we gather the current state-of-the-art knowledge in the field and synthesize it into a picture of an EUV wave driven by the lateral expansion of the CME. This picture can account for both wave and pseudo-wave interpretations of the observations, thus resolving the controversy over the nature of EUV waves to a large degree but not completely. We close with a discussion on several remaining open questions in the field of EUV waves research.
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