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Radio Emission from the Sun and Stars: New Insights into Energetic Phenomena

Published online by Cambridge University Press:  26 May 2016

T. S. Bastian
T. S. Bastian*
Affiliation:
National Radio Astronomy Observatory, Charlottesville, VA 22903 USA

Abstract

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Energetic phenomena on the Sun and late-type stars pose a number of fascinating puzzles. These include coronal heating, flares, and coronal mass ejections, all believed to be manifestations of magnetic energy release. Radio radiation is a sensitive tracer of energetic phenomena on both the Sun and stars. Radio observations of the Sun over the past decade have produced new insights into the physics of magnetic energy release in flares and coronal mass ejections. Radio observations of late-type stars have exploited sensitive imaging and spectroscopic techniques to further constrain the nature of the relevant emission mechanisms. A surprise has been the recent discovery of radio emission from brown dwarf stars, implying the existence of substantial magnetic fields and a means of dissipating magnetic energy, neither of which are understood.

Type
Part 4: High Energy Phenomena in Sun and Stars
Information
Symposium - International Astronomical Union , Volume 219: Stars as Suns : Activity, Evolution and Planets , 2004 , pp. 145 - 158
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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