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The coalescence instability in solar flaresThe nonlinear coalescence instability of current carrying solar loops can explain many of the characteristics of the solar flares such as their impulsive nature, heating and high energy particle acceleration, amplitude oscillations of electromagnetic and emission as well as the characteristics of two-dimensional microwave images obtained during a flare. The plasma compressibility leads to the explosive phase of loop coalescence and its overshoot results in amplitude oscillations in temperatures by adiabatic compression and decompression. It is noted that the presence of strong electric fields and super-Alfvenic flows during the course of the instability play an important role in the production of nonthermal particles. A qualitative explanation on the physical processes taking place during the nonlinear stages of the instability is given.
Document ID
19850066664
Document Type
Conference Paper
Authors
Tajima, T. (Texas Univ. Austin, TX, United States)
Brunel, F. (Texas, University Austin, United States)
Sakai, J.-I. (Toyama University Japan; Maryland, University, College Park, United States)
Vlahos, L. (Texas Univ. Austin, TX, United States)
Kundu, M. R. (Maryland, University College Park, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Subject Category
SOLAR PHYSICS
Meeting Information
Unstable current systems and plasma instabilities in astrophysics(College Park, MD)
Funding Number(s)
CONTRACT_GRANT: NSF ATM-82-14730
CONTRACT_GRANT: NSF ATM-81-03089
CONTRACT_GRANT: DE-FG05-80ET-53088
CONTRACT_GRANT: NAGW-81
Distribution Limits
Public
Copyright
Other