Original title: Propagation of waves in polytropic disks
Authors: Horák, Jiří
Document type: Papers
Conference/Event: RAGtime /20.-22./, Opava (CZ), 20181015
Year: 2020
Language: eng
Abstract: We derive an analytic dispersion relation for waves in three-dimensional polytropic disks. The problem can be separated to two one-dimensional problems of radial and vertical wave propagation. For the vertical problem, we use and generalize first-order perturbation method for waves near the vertical resonance introduced previously by several authors. Based on comparison of the analytical solutions with numerical integration, we find a surprisingly large region of validity of our dispersion relation including both p-mode and g-mode oscillations.
Keywords: disk dynamics; perturbation methods
Host item entry: Proceedings of RAGtime 20/22: Workshops on black holes and neutron stars, ISBN 978-80-7510-433-5

Institution: Astronomical Institute AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://proceedings.physics.cz/images/proc21/hor.pdf
Original record: http://hdl.handle.net/11104/0317181

Permalink: http://www.nusl.cz/ntk/nusl-432411


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Research > Institutes ASCR > Astronomical Institute
Conference materials > Papers