Název:
Propagation of waves in polytropic disks
Autoři:
Horák, Jiří Typ dokumentu: Příspěvky z konference Konference/Akce: RAGtime /20.-22./, Opava (CZ), 20181015
Rok:
2020
Jazyk:
eng
Abstrakt: 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.
Klíčová slova:
disk dynamics; perturbation methods Zdrojový dokument: Proceedings of RAGtime 20/22: Workshops on black holes and neutron stars, ISBN 978-80-7510-433-5