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Mechanisms for Coronal Mass Supply by Evaporative Micro-Events

Published online by Cambridge University Press:  13 May 2016

J. C. Brown ,
S. Krucker ,
M. Güdel  and
A. O. Benz
J. C. Brown
Affiliation:
Department of Physics & Astronomy, University of Glasgow, G128QQ, Scotland, UK University of Glasgow
S. Krucker
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, USA
M. Güdel
Affiliation:
Paul Scherrer Institute, CH-5232, Villigen PSI, Switzerland
A. O. Benz
Affiliation:
Swiss Federal Institute of Technology, Institute of Astronomy, ETH-Zentrum, CH-8092 Zürich, Switzerland

Abstract

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There is extensive evidence from SoHO and other data that “micro-events” play an important role in sustaining at least some components of the solar corona. These are often termed coronal micro-” heating events” though a major part of their role is feeding coronal loops through chromospheric evaporation. We consider what can be learnt from these data concerning the energy release and transport mechanisms driving the evaporation, including thermal conduction and fast particles. We conclude, from one large event and the statistics of many small ones, that conductive evaporation alone does not fit observations and that fast particles or some other nonthermal driver must be involved.

Type
Session V: Coronal Heating and Solar Wind Acceleration
Information
Symposium - International Astronomical Union , Volume 203: Recent Insights into the Physics of the Sun and Heliosphere: Highlights from Soho and Other Space Missions , 2001 , pp. 498 - 500
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

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