Dear “loops” friends,
You might be interested in the paper that Spiro and I just published concerning the role of turbulence in forming the current sheets that spawn nanoflares in the magnetically closed corona:
http://journal.frontiersin.org/article/10.3389/fspas.2021.662861/full?&utm_source=Email_to_authors_&utm_medium=Email&utm_content=T1_11.5e1_author&utm_campaign=Email_publication&field=&journalName=Frontiers_in_Astronomy_and_Space_Sciences&id=662861
We argue that the sheets form primarily from other processes, unrelated to turbulence. Localized temporary bursts of turbulence may nonetheless be generated when the sheets reconnect.
Abstract:
We argue that the magnetically closed corona evolves primarily quasi-statically, punctuated by many localized bursts of activity associated with magnetic reconnection at a myriad of small current
sheets. The sheets form by various processes that do not involve a traditional turbulent cascade whereby energy flows losslessly through a continuum of spatial scales starting from the large scale of the photospheric driving. If
such an inertial range is a defining characteristic of turbulence, then the magnetically closed corona is not a turbulent system. It nonetheless has a complex structure that bears no direct relationship to the pattern of driving.
Cheers,
Jim
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James A. Klimchuk
NASA Goddard Space Flight Center
Solar Physics Lab, Code 671
Bldg. 21, Rm. 158
Greenbelt, MD 20771
USA
Phone:
1-301-286-9060
Fax:
1-301-286-7194
E-mail: James.A.Klimchuk@nasa.gov
Homepage:
http://science.gsfc.nasa.gov/sed/bio/james.a.klimchuk
No endorsement by NASA is implied for any correspondence related to my official role in professional organizations.
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