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.


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    Titel :

    On plasma processes in the solar corona


    Beteiligte:
    de Assis, A.S. (Autor:in) / de Azevedo, C.A. (Autor:in) / Chian, A.C.-L. (Autor:in) / Sakanaka, P.H. (Autor:in) / Shigueoka, H. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 11 , 1 ; 233-236


    Erscheinungsdatum :

    01.01.1991


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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