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Electromagnetic emission by subsequent processes L→L'+S and L+L'→T

Published online by Cambridge University Press:  08 June 2011

Marian Karlický  and
Miroslav Bárta
Marian Karlický
Affiliation:
Astronomical Institute of the Academy of Sciences of the Czech Republic, CZ – 25165 Ondřejov, Czech Republic email: karlicky@asu.cas.cz, barta@asu.cas.cz
Miroslav Bárta
Affiliation:
Astronomical Institute of the Academy of Sciences of the Czech Republic, CZ – 25165 Ondřejov, Czech Republic email: karlicky@asu.cas.cz, barta@asu.cas.cz
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Abstract

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Using a 2.5-D electromagnetic particle-in-cell (PIC) model, very early stages of a generation of the electromagnetic emission produced by a monochromatic Langmuir wave are studied. It is found that the electromagnetic emission, which is dominant on the harmonic of the plasma frequency, starts to be generated in a very small region of k-vectors. Later on the k-vectors of this emission are scattered around a ‘circle’ (in our 2-D case), given by the relations for the L+L'→T process. Analytical analysis of two subsequent processes L→L'+S a L+L'→T confirms these results.

Keywords

wavesradiation mechanisms: generalSun: radio radiation

Information

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S274: Advances in Plasma Astrophysics , September 2010 , pp. 252 - 254
Copyright
Copyright © International Astronomical Union 2011

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