Please use this identifier to cite or link to this item:
Type: Artigo de periódico
Title: Discrete Alfvén Waves In Solar Loop Prominences
Author: De Azevedo C.A.
De Assis A.S.
Shigueoka H.
Sakanaka P.H.
Abstract: It is shown that a discrete Alfvén wave can explain the natural oscillations of solar loop prominences by considering the existence of a current flow. Discrete Alfvén waves are a new class of Alfvén waves which is described by the inclusion of the finite ion cyclotron frequency (ω/ωcl≠0) and/or the equilibrium plasma current. In this paper we consider only the effect of the current since in solar prominences (ω/ωcl≈0). We have modeled the solar prominences as a cylindrical plasma, surrounded by vacuum (corona), with L ≫ a where L and a are the plasma column, length, and radius, respectively. We have calculated the spectrum of the discrete Alfvén waves as function of the magnitude and shape of the plasma current. © 1991 Kluwer Academic Publishers.
Editor: Kluwer Academic Publishers
Citation: Solar Physics. Kluwer Academic Publishers, v. 131, n. 1, p. 119 - 127, 1991.
Rights: fechado
Identifier DOI: 10.1007/BF00151748
Date Issue: 1991
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.