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Coronal Arcades in the Sun and Their Hydromagnetic Stability

Published online by Cambridge University Press:  04 August 2017

A. Ray
A. Ray*
Affiliation:
Tata Institute of Fundamental Research, Homi Bhabha Road Bombay 400005 India

Extract

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Two ribbon flares on the sun are sometimes preceded by luminous arcade like structures in the corona with fillament activity. The arcades which are associated with the coronal magnetic field are sometimes without these fillaments when they are found to be relatively long lived. The reasons underlying the stability and instability of these structures may be relevant in understanding the basic mechanism of two ribbon flares. Here we present results on the equilibrium structure of coronal arcades and their hydromagnetic stability taking into account the effects of magnetic field line-tying on the photosphere.

Type
Session VII
Information
Symposium - International Astronomical Union , Volume 107: Unstable Current Systems and Plasma Instabilities , 1985 , pp. 483 - 486
Copyright
Copyright © Reidel 1985 

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