{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/80525"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/80525","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Alfven-Rossby Waves in Rotating Magnetized Stars","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. 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We also found and explained the existence of very long-period quasi-periodic oscillations.","abstract_has_math":false,"creators":["Chen, Yun"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Lamb, Frederick K."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T20:02:55Z","date_published":"2015-09-25T20:02:55Z","updated_at":"2026-07-22T22:26:14Z","subjects":["Physics, Astronomy and Astrophysics"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3202073"],"render_values":[{"text":"(MiAaPQ)AAI3202073","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/80525","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Lamb, Frederick K."]},{"key":"dc:creator","label":"Author","values":["Chen, Yun"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-25T20:02:55Z","10000-01-01","2005"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Physics, Astronomy and Astrophysics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/80525","(MiAaPQ)AAI3202073"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Using Hamiltonian methodology, we clarified a common misunderstanding of the origin of kinematic drifts. 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