Long, DM;
Bloomfield, DS;
Chen, PF;
Downs, C;
Gallagher, PT;
Kwon, R-Y;
Vanninathan, K;
... Zic, T; + view all
(2017)
Understanding the Physical Nature of Coronal “EIT Waves”.
Solar Physics
, 292
(7)
10.1007/s11207-016-1030-y.
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Abstract
For almost 20 years the physical nature of globally propagating waves in the solar corona (commonly called “EIT waves”) has been controversial and subject to debate. Additional theories have been proposed over the years to explain observations that did not agree with the originally proposed fast-mode wave interpretation. However, the incompatibility of observations made using the Extreme-ultraviolet Imaging Telescope (EIT) onboard the Solar and Heliospheric Observatory with the fast-mode wave interpretation was challenged by differing viewpoints from the twin Solar Terrestrial Relations Observatory spacecraft and data with higher spatial and temporal resolution from the Solar Dynamics Observatory. In this article, we reexamine the theories proposed to explain EIT waves to identify measurable properties and behaviours that can be compared to current and future observations. Most of us conclude that the so-called EIT waves are best described as fast-mode large-amplitude waves or shocks that are initially driven by the impulsive expansion of an erupting coronal mass ejection in the low corona.
| Type: | Article |
|---|---|
| Title: | Understanding the Physical Nature of Coronal “EIT Waves” |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/s11207-016-1030-y |
| Publisher version: | http://doi.org/10.1007/s11207-016-1030-y |
| Language: | English |
| Additional information: | © The Author(s) 2016. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
| Keywords: | Coronal mass ejections, low coronal signatures Waves, magnetohydrodynamic Waves, propagation Waves, shock |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1532130 |
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