Unprecedented Fine Structures during a Solar Eruptive Event Observed by the 1.6-m New Solar Telescope at Big Bear Solar Observatory
Abstract
A solar eruptive event includes both large-scale and small-scale structures. Flares, filament eruptions and CMEs are large-scale features and have been studied extensively in the literature. On the other hand, fine structures (below 500 km) are rarely observed and are accessible to only a fewinstruments world-wide. Using the 1.6-m New Solar Telescope (NST) at Big Bear Solar Observatory (BBSO), an M6.5 flare was captured on June 22, 2015. This extraordinary observation reveals the process of the magnetic energy release in unprecedented detail, including the flare ribbon propagating across the sunspots, sunspot rotation, magnetic channels (elongated structurescomprising alternating magnetic polarity inversion lines), coronal rain (made of condensing plasma) streaming down along the post-flare loops, and the chromosphere's response to the impact of coronal rain, showing fine-scale brightenings at the footpoints of the falling plasma. Here we present our analysis of this event in a comprehensive manner covering the above phenomena.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2016
- Bibcode:
- 2016AGUFMSH41E..04X
- Keywords:
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- 7507 Chromosphere;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMYDE: 7509 Corona;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMYDE: 7531 Prominence eruptions;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMYDE: 7974 Solar effects;
- SPACE WEATHER