Hi Loops friends,
Attached is a paper just accepted by Solar Physics entitled "The Distinction Between Thermal Nonequilibrium and Thermal Instability," a topic which has caused some confusion.
Abstract:
For some forms of steady heating, coronal loops are in a state of thermal nonequilibrium and evolve in a manner that includes accelerated cooling, often resulting in the formation of a cold condensation. This is frequently confused with thermal instability, but the two are in fact fundamentally different. We explain the distinction and discuss situations where they may be interconnected. Large-amplitude perturbations, perhaps associated with MHD waves, likely play a role in explaining phenomena that have been attributed to thermal nonequilibrium but also seem to require cross-field communication.
Best wishes,
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(a)nasa.gov<mailto:James.A.Klimchuk@nasa.gov>
Homepage: http://science.gsfc.nasa.gov/sed/bio/james.a.klimchuk<http://science.gsfc.nasa.gov/sed/index.cfm?fuseAction=people.jumpBio&&iPhon…>
No endorsement by NASA is implied for any correspondence related to my official role in professional organizations.
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Dear all,
related with the issue reported in the email "[Loops] WARNING people using Loops Workshop contact details
to request money”, we have removed all the contact details from the Fifth Coronal Loops webpage. Regards
Prof. J. L. Ballester
Departament de Física & IAC3-UIB
Universitat Illes Balears
E-07122 Palma de Mallorca (Spain)
phone: 34 971 172832
Fax: 34 971 173426
joseluis.ballester(a)uib.es
directorIAC3(a)uib.es
https://joseluisballester.wixsite.com/pershttp://solar.uib.es
Dear All,
someone is using the email distribution and contact details from the
"5th coronal loops workshop", they use an alias from someone at the
meeting, and then when you respond they ask for money. Check the email
address if you receive emails about a Loops Workshop.
I assume the contact details are from this webpage:
http://www.uibcongres.org/paginasCongresos/pagina_205_6.en.html?cc=205
Kind regards,
Matt
P.s. As a matter of practice it might be best to check your webpages in
general, the lawyers at ROB have asked us to remove everyones contact
details due to liability under the General Data Protection Regulation.
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Matthew J West
PROBA2 Technical Coordinator
Physicist & Space Weather Forecaster
Royal Observatory of Belgium
Ringlaan - 3 – Avenue Circulaire
B – 1180 Brussels, Belgium
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