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Type II Burst-Sources as Low-VA Regions in the Corona ‘Illuminated’ by Flare-Induced MHD Shocks

Published online by Cambridge University Press:  25 May 2016

Yutaka Uchida
Yutaka Uchida*
Affiliation:
Tokyo Astronomical Observatory, University of Tokyo, Mitaka, Tokyo, Japan High Altitude Observatory, National Center for Atmospheric Research, Boulder, Colo., U.S.A.

Abstract

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(Solar Phys.). The author has proposed a hypothesis that the type II burst-sources may be due to the local enhancement of the flare-produced MHD fast-mode shock wave on encountering the pre-existing low Alfvén velocity regions in the corona (Uchida, 1973). The purpose of the present paper is to show that this may actually be the case by comparing the behavior of the computor-simulated propagation and strengthening of MHD fast-mode (weak) shock with the observed characteristics of type II burst-sources.

Type
Part III Shock Waves and Plasma Ejection
Information
Symposium - International Astronomical Union , Volume 57: Coronal Disturbances , 1974 , pp. 383 - 385
Copyright
Copyright © Reidel 1974 

References

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