MULTIPLE HARMONIC PLASMA EMISSION

Tongnyeol Rhee

doi:10.1088/0004-637X/694/1/618

2009-03-17

DOI：10.1088/0004-637X/694/1/618

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摘要

En 中文

Electromagnetic radiation at the plasma frequency and/or its second harmonic, the so-called plasma emission, is widely accepted as the fundamental process responsible for solar type II and III radio bursts. There have also been occasional observations of higher-harmonic plasma emissions in the solar-terrestrial environment. This paper presents the first demonstration of multiple harmonic emission by means of two-dimensional electromagnetic particle-in-cell simulation. This finding indicates that under certain circumstances the traditional mechanism of fundamental-harmonic pair emission might also be accompanied by higher-harmonic components. Consequently, the present findings are highly relevant to in situ observations of third- and/or higher-harmonic plasma emission in astrophysical and solar-terrestrial environments.

Keyword:

Sun: radio radiation

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期刊

Astrophysical Journal

IF:

5.4

论文数:

8.3W

被引数:

32.0W

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