[Loops] summaries on nanoflare debates in "coronalloopworkshops"

[Klimchuk, James A. (GSFC-6710)]

Markus, you are definitely right that all coronal material originates in
the chromosphere.  If the energy release (heating) occurs in the corona,
a downward thermal conduction flux (and possibly also a downward flux of
nonthermal particles) causes material to evaporate into the corona.
That is the traditional view.  What other people (including you?) are
proposing is that the energy release occurs directly in the chromosphere
or transition region, and this process both heats the cool plasma and
injects it upward.

 

Jim

 

________________________________

From: loops-bounces at solar.physics.montana.edu
[mailto:loops-bounces at solar.physics.montana.edu] On Behalf Of Markus J.
Aschwanden
Sent: Friday, March 06, 2009 11:52 AM
To: A mailing list for scientists involved in the observation and
modeling ofsolar loop structures
Subject: Re: [Loops] summaries on nanoflare debates in
"coronalloopworkshops"

 

 

On Mar 6, 2009, at 8:44 AM, Klimchuk, James A. (GSFC-6710) wrote:






By the way, I do NOT believe that observations necessarily point to low
altitude heating.  My view is that observations are consistent with both
low altitude and high altitude heating.  Perhaps this should be a topic
for Loops IV.

Jim

 

There is no way around to heat up first chromospheric material to fill
coronal

loops to produce the enhanced soft X-ray and EUV emission we see from

coronal loops (like in flares). Any heating mechanism that heats
directly

in the corona, does not increase the local density, so we would not see

any loops.

 

Markus

 

 

 

____________________________________________

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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