publication 25-September-2018 22:30:10

SWAP observations of post-flare giant arches in the long-duration 2014 October 14 solar eruption

Publication date: 01 March 2015

Authors: West, M. J. and Seaton, D. B.

Journal: The Astrophysical Journal Letters
Volume: 801
Issue: 1
Page: L6
Year: 2015

Copyright: IOP Publishing

On 2014 October 14 the Sun Watcher with Active Pixels and Image Processing EUV solar telescope on board the Project for On Board Autonomy 2 spacecraft observed an eruption that led to the formation of perhaps the largest post-eruptive loop system seen in the solar corona in solar cycle 24. The initial eruption occurred at about 18:30 UT on October 14, behind the east Solar limb, and was observed as a a coronal mass ejection and an M2.2 solar flare. In the 48 hr following the eruption, the associated post-eruptive loops grew to a height of approximately 4 × 105 km > 0.5 RSun) at rates between 2 and 6 km s-1. We conclude from our observations of this event that ordinary post-eruptive loops and so-called post-flare giant arches are fundamentally the same and are formed by the same magnetic reconnection mechanism.

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Last Update: 09 June 2016

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