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Three Frequency Observations of a Moving Type IV Burst at the Limb

Published online by Cambridge University Press:  25 April 2016

G. J. Nelson
G. J. Nelson*
Affiliation:
Division of Radiophysics, CSIRO, Sydney
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Extract

On 1975 August 22 an outburst above the west limb of the Sun was observed with the Culgoora radioheliograph at 43, 80 and 160 MHz. The first stages of the event included intense type III/V bursts followed by a type II burst with multiple, fundamental and harmonic bands and herringbone structure. While the type II burst was still in progress a moving type IV burst appeared. It was eventually observed out to a distance of more than 3 R⊙. This was the first moving type IV burst observed with the two-dimensional radioheliograph operating at three frequencies; as such it provides valuable constraints on models of moving type IV sources.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 3 , Issue 2 , September 1977 , pp. 159 - 162
Copyright
Copyright © Astronomical Society of Australia 1977

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