The longitudinal waves (Bernstein modes and plasma waves near the hybrid frequency) in a mixture of equilibrium coronal plasma and a small group of energetic electrons are investigated. The energetic electrons have a nonequilibrium momentum distribution inherent in trapped particles. The frequency d
Thermal cyclotron radio emission of neutral current sheets in the solar corona
โ Scribed by V. V. Zheleznyakov; E. Ya. Zlotnik
- Publisher
- Springer
- Year
- 1980
- Tongue
- English
- Weight
- 529 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0038-0938
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โฆ Synopsis
Cyclotron radiation (its frequency spectrum and polarization) of thermal electrons in a neutral current sheet is considered. It is shown that cyclotron radiation is able to escape only from a thin edge of the sheet where the magnetic field is practically homogeneous. Due to this, the frequency spectrum has the form of comparatively narrow lines with integer ratio of frequencies, This fact enables one to recognize neutral current sheets in the solar corona by their radio emission.
๐ SIMILAR VOLUMES
The results of investigation of the cyclotron wave instability in the corona for Bernstein modes and plasma waves in a hybrid band have been used to interpret zebra-pattern phenomena. Two models of the generation region of parallel drifting bands are considered: the model of the point source localiz
The effects of scattering and refraction on radio waves in the solar corona are considered for several different coronal models. By considering a source near the plasma level in a spherically symmetric corona and in a streamer enhancement superimposed on a spherically symmetric corona we obtain resu