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Millimeter Radio Evidence for Containment Mechanisms in Solar Flares

Published online by Cambridge University Press:  25 May 2016

E. B. Mayfield ,
K. P. White III  and
F. I. Shimabukuro
E. B. Mayfield
Affiliation:
Aerospace Corp., El Segundo, Calif., U.S.A.
K. P. White III
Affiliation:
Aerospace Corp., El Segundo, Calif., U.S.A.
F. I. Shimabukuro
Affiliation:
Aerospace Corp., El Segundo, Calif., U.S.A.

Abstract

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Recent theories of solar flares are reviewed with emphasis on the aspects of pre-flare heating. The heating evident at 3.3-mm wavelength is analyzed in the form of daily maps of the solar disk and synoptic maps compiled from the daily maps. It is found that isotherms defining antenna temperature enhancements of 340 K correspond in shape and location to facular areas reported by Waldmeier. Maximum enhancements occur over sunspots or near neutral lines of the longitudinal magnetic fields which indicates heating associated with chromospheric currents. These enhancements are correlated with flare importance number and are observed to increase during several days preceding flaring. This evidence for a containment mechanism in the chromosphere is collated with current theories of solar flares.

Type
Part IV Acceleration, Containement and Emission of High-Energy Flare Particles
Information
Symposium - International Astronomical Union , Volume 57: Coronal Disturbances , 1974 , pp. 447 - 460
Copyright
Copyright © Reidel 1974 

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