[Loops] summaries on nanoflare debates in "coronal loop workshops"

[Markus J. Aschwanden]

Dear Hugh,

Jim Klimchuk sent a great summary of the current status of a nanoflare  
model around,
so it deals with all the PROs. An outside reader who wants to hear  
both sides might be
interested to hear also the CONs, which you could find in the ApJ  
Letter entitled
"An observational test that disproves coronal nanoflare heating  
models" (Aschwanden
2008, ApJ 672, L135). The arguments made therein do not dismiss  
nanoflares
altogether, but come to the conclusion that they occur in the  
transition region,
rather than in the corona (as Parker originally suggested).

Cheers,
Markus


On Mar 3, 2009, at 7:32 AM, Klimchuk, James A. (GSFC-6710) wrote:

> Dear loops friends,
>
>      Here is a paper I wrote for the Hinode II conference  
> proceedings.  In it, I try to do three things:  (1) review the  
> arguments leading to the conclusion that warm EUV loops must by  
> bundles of strands heated by storms of nanoflares (the flow chart  
> some of you have asked about); (2) reconcile the isothermal/multi- 
> thermal debate in terms of the duration of the nanoflare storm; and  
> (3) address the possibility that loops can be explained by thermal  
> nonequilibrium.  Comments are welcomed.
>
> Thanks,
> James A. Klimchuk
>

____________________________________________
Dr. Markus J. Aschwanden
Solar & Astrophysics Laboratory
Lockheed Martin Advanced Techology Center
Org. ADBS, Bldg. 252
3251 Hanover St., Palo Alto, CA 94304, USA
Phone: 650-424-4001, FAX: 650-424-3994
URL: http://www.lmsal.com/~aschwand/
e-mail: aschwanden at lmsal.com
_______________________________________
____________________________________



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