Multiple eigenmodes of geodesic acoustic mode in collisionless plasmas

200682 citationsJournal Article

Authors

K. Itoh · National Institute for Fusion Science

H. Sanuki · National Institute for Fusion Science

Jiaqi Dong · Southwestern Institute of Physics

Abstract

We report a series of eigenmodes of the geodesic acoustic mode (GAM), which includes the standard GAM, a branch of low-frequency mode, and a series of ion sound wave-like modes. The case of Ti≫Te is investigated, and eigenfrequencies of these modes are obtained analytically from a linear gyrokinetic model in collisionless plasmas with a rigid constant electrostatic potential around a magnetic surface.

Topics & Keywords

Magnetic confinement fusion research Ionosphere and magnetosphere dynamics Astro and Planetary Science

Publication Details

Published in: Physics of Plasmas

Volume 13, Issue 10

DOI: 10.1063/1.2359722

Field-Weighted Citation Impact: 8.34

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Multiple eigenmodes of geodesic acoustic mode in collisionless plasmas

Authors

Abstract

Topics & Keywords

Publication Details