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Spatiotemporal Organization of Energy Release Events in the Quiet Solar CoronaUsing data from the STEREO and SOHO spacecraft, we show that temporal organization of energy release events in the quiet solar corona is close to random, in contrast to the clustered behavior of flaring times in solar active regions. The locations of the quiet-Sun events follow the meso- and supergranulation pattern of the underling photosphere. Together with earlier reports of the scale-free event size statistics, our findings suggest that quiet solar regions responsible for bulk coronal heating operate in a driven self-organized critical state, possibly involving long-range Alfvenic interactions.
Document ID
20150010747
Document Type
Reprint (Version printed in journal)
Authors
Uritsky, Vadim M. (Catholic Univ. of America Washington, DC, United States)
Davila, Joseph M. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
June 15, 2015
Publication Date
October 9, 2014
Publication Information
Publication: The Astrophysical Journal
Volume: 795
Issue: 1
Subject Category
Solar Physics
Report/Patent Number
GSFC-E-DAA-TN22880
Funding Number(s)
CONTRACT_GRANT: NNG11PL10A
Distribution Limits
Public
Copyright
Other
Keywords
sun activity
instabilities
magnetic fields