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Type: Artigo de periódico
Title: On Plasma Processes In The Solar Corona
Author: de Assis A.S.
de Azevedo C.A.
Chian A.C.-L.
Sakanaka P.H.
Shigueoka H.
Abstract: This paper reviews theoretical research on the solar corona performed in Brazil. Three coronal processes are discussed: (1) coronal heating by surface Alfvén waves, (2) coronal heating by global Alfvén waves, and (3) generation of type III radio emission. The surface Alfvén waves can power, directly, at least 10% of the required coronal flux density; in the case of mode conversion into kinetic Alfvén waves the bulk of energy flux density can be provided. The global waves can power at least 20% of the required coronal energy flux density. It is shown that the electromagnetic oscillating two-stream instability driven by intense Langmuir waves, can be a likely generation mechanism of type -III radio bursts. © 1991.
Rights: fechado
Identifier DOI: 10.1016/0273-1177(91)90115-Z
Date Issue: 1991
Appears in Collections:Unicamp - Artigos e Outros Documentos

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