Sorry for all the confusion with the earlier flowchart e-mail.
We have tracked down the source of the problem. To prevent “spoofing,”
NRL blocks all e-mail coming from an outside source (the MSU listserve) with an
NRL address (mine). Hence, no one at NRL received the message. Our
networking people have now included the listserve as a special exception, so the
problem should not occur again. I’m attaching the flowchart here
for the benefit of the NRL folks.
I’ve received a request for information on what “over
densities” are all about. A discussion and references can be found
in Section 7.1 (p. 62) of the attached paper.
Sorry again,
Jim
Dear
A number of you have expressed
interest in a flowchart I showed at the Loops III Workshop that deals with the
isothermal/multi-thermal issue, so I am attaching a copy here. It tries
to present the reasoning behind the conclusion that some loops must be
multi-thermal (composed of unresolved, impulsively-heated strands at different
temperatures). The boxes with blue type contain questions that can be
answered observationally. Depending on the answers, an isothermal
interpretation might be reasonable. However, if the answers lead to the
lower-right corner of the chart, then there is a major inconsistency and
therefore something fundamental that we do not understand.
At the time of the workshop, there
was a question of whether the observed over densities can be explained by
thermal nonequilibrium (the lack of equilibrium when steady heating is
sufficiently highly concentrated near the footpoints). I can now confirm
that it can. However, whether the other observational properties can also
be explained is currently being investigated.
Best wishes,
Jim
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James A. Klimchuk
Space Science Division
Naval Research
Lab
Phone: 202-404-8136
Fax: 202-404-7997
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