Solar meter noise storm - Whistler model

Details Solar meter noise storm - Whistler model Solar meter noise storm - Whistler model

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990chjss..10....8l&link_type=abstract

Chinese Journal of Space Science (ISSN 0254-6124), vol. 10, Jan. 1990, p. 8-16. In Chinese, with abstract in English.

Physics

Electrostatic Waves, Solar Corona, Solar Storms, Whistlers, Electron Energy, Magnetic Storms, Noise Spectra

Scientific paper

A storm model is proposed, in which the noise storm phenomena is driven by the magnetic field evolution of a coronal active region. In the model, the magnetic structure of a coronal active region produces weak shocks which heat a fraction of electrons as the shocks pass a coronal arch. The heated electrons form a local loss-cone instabilities that generate Langmuir and whistler waves. The interaction of the Langmuir and whistler waves produces a high-frequency electromagnetic wave in a narrow beam, or a type-1 burst. The model includes directivity as a critical factor in determining which low-frequency disturbance will couple with a high-frequency wave to generate the transverse electromagnetic wave.

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