Dear All,
Read, enjoy, and share !

Aschwanden,M.J. 2019, ApJ (Version Feb 27, in press)
URL1="http://www.lmsal.com/~aschwand/eprints/2019_twist.pdf" 
Helical twisting number and braiding linkage number of coronal loops


Best,
Markus

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Markus J. Aschwanden 
Lockheed Martin ATC
Solar & Astrophysics Lab.
Bldg. 252, Org ADBS
3251 Hanover St.
Palo Alto, CA 94304, USA

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