April 15-17

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Abstracts

Author: Andrei Smolyakov
Requested Type: Poster
Submitted: 2019-02-22 14:36:49

Co-authors: V.P. Lakhin, E. Sorokina, V.I. Ilgisonis

Contact Info:
University of Saskatchewan
116 Science Place
Saskatoon, Saskatchew   000000
Canada

Abstract Text:
Electromagnetic effects on Geodesic Acoustic Mode are considered within the two-fluid (cold ions, warm electrons ) model. It is shown that in addition to the widely assumed m=2 component of the magnetic perturbation, there is also m=1 component. It is shown that the m=1 magnetic component is related to the m=0 density perturbation. The m=1 magnetic component is a dispersive effect and is generally smaller than m=2 by the k_{r} rho_{s}<1 factor.
It is expected therefore that in the short wavelength regime the m=1 can be of comparable amplitude to that of m=2.

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