๐”– Bobbio Scriptorium
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On the origin of type III fundamental

โœ Scribed by A. B. Eremin; V. V. Zaitsev

Book ID
104645529
Publisher
Springer
Year
1985
Tongue
English
Weight
615 KB
Volume
102
Category
Article
ISSN
0038-0938

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โœฆ Synopsis

A two-component scheme for the generation of type III fundamental radiation is proposed. The first component of the fundamental arises at a plasma level co L ~-co, because of the Rayleigh scattering of the plasma waves into electromagnetic radiation. The other component arises at co L --co/2 because of the decay of the first component into plasma waves and the subsequent rescattering of the plasma waves into electromagnetic radiation cos ~ 2(co/2). By its properties (location, directivity, polarization) the second component is essentially the same as the second harmonic radiation produced by a stream of fast electrons at co)_ ~ (co/2). This scheme is used to solve the main problems (localization and directivity of the source, polarization of type III fundamental) of the harmonic theory of type III solar bursts.

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## Discussion D. Smith: I know spontaneous emission maximizes at about 90 ~ However, if B is present, amplification maximizes at about 0 ~ with respect to B. Rosenberg: No. D. Smith: According to Yip the growth rate maximizes along the magnetic field. Rosenberg" Direction of B does not make that