Název:
Wave excitation at Lindblad resonances using the method of multiple scales
Autoři:
Horák, Jiří Typ dokumentu: Příspěvky z konference Konference/Akce: RAGtime /17.-19./, Opava (CZ), 20151117
Rok:
2017
Jazyk:
eng
Abstrakt: In this note, the method of multiple scales is adopted to the problem of excitation of non–axisymmetric acoustic waves in vertically integrated disk by tidal gravitational fields. We derive a formula describing a waveform of exited wave that is uniformly valid in a whole disk as long as only a single Lindblad resonance is present. Our formalism is subsequently applied to two classical problems: trapped p–mode oscillations in relativistic accretion disks and the excitation of waves in infinite disk.
Klíčová slova:
disk dynamics; Lindblad resonances; perturbation methods Číslo projektu: GA17-16287S (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Proceedings of RAGtime 17/19: Workshops on black holes and neutron stars, ISBN 9788075102577, ISSN 2336-5668