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Title: Well-observed dynamics of flaring and peripheral coronal magnetic loops during an M-class limb flare

In this paper, we present a variety of well-observed dynamic behaviors for the flaring and peripheral magnetic loops of the M6.6 class extreme limb flare that occurred on 2011 February 24 (SOL2011-02-24T07:20) from EUV observations by the Atmospheric Imaging Assembly on the Solar Dynamics Observatory and X-ray observations by RHESSI. The flaring loop motion confirms the earlier contraction-expansion picture. We find that the U-shaped trajectory delineated by the X-ray corona source of the flare roughly follows the direction of a filament eruption associated with the flare. Different temperature structures of the coronal source during the contraction and expansion phases strongly suggest different kinds of magnetic reconnection processes. For some peripheral loops, we discover that their dynamics are closely correlated with the filament eruption. During the slow rising to abrupt, fast rising of the filament, overlying peripheral magnetic loops display different responses. Two magnetic loops on the elbow of the active region had a slow descending motion followed by an abrupt successive fast contraction, while magnetic loops on the top of the filament were pushed outward, slowly being inflated for a while and then erupting as a moving front. We show that the filament activation and eruption play a dominant rolemore » in determining the dynamics of the overlying peripheral coronal magnetic loops.« less
Authors:
 [1] ; ; ;  [2] ; ;  [3]
  1. Xinjiang Astronomical Observatory, CAS, Umuqi, Xinjiang 830011 (China)
  2. Purple Mountain Observatory, CAS, Nanjing 210008 (China)
  3. Max-Planck-Institut für Sonnensystemforschung, Justus-von-liebig-Weg 3, D-37077 Goettingen (Germany)
Publication Date:
OSTI Identifier:
22365336
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 791; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CHROMOSPHERE; CONTRACTION; ERUPTION; EXPANSION; EXTREME ULTRAVIOLET SPECTRA; MAGNETIC FIELDS; MAGNETIC RECONNECTION; PHOTOSPHERE; STELLAR CORONAE; STELLAR FLARES; SUN; TRAJECTORIES; X RADIATION