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Title:Alfven-Rossby Waves in Rotating Magnetized Stars
Author(s):Chen, Yun
Doctoral Committee Chair(s):Lamb, Frederick K.
Department / Program:Physics
Discipline:Physics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Physics, Astronomy and Astrophysics
Abstract:Using Hamiltonian methodology, we clarified a common misunderstanding of the origin of kinematic drifts. We studied the weakly nonlinear interactions between linear Alfven-Rossby waves. We used a spherical harmonic representation in which the fully nonlinear MHD equations are replaced by an equivalent system of first order ODEs. We computed the coupling coefficients analytically. Through numerical calculations, we found that even a weak magnetic field can greatly enhance the couplings between modes. We also found and explained the existence of very long-period quasi-periodic oscillations.
Issue Date:2005
Type:Text
Language:English
Description:104 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2005.
URI:http://hdl.handle.net/2142/80525
Other Identifier(s):(MiAaPQ)AAI3202073
Date Available in IDEALS:2015-09-25
Date Deposited:2005


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