Abstract
One-armed global oscillations in a non-selfgravitating polytropic disk rotating around a star are investigated. The unperturbed disk is axisymmetric, geometrically thin, and extends infinitely in the radial direction keeping its thickness constant. Perturbations considered are inviscid and adiabatic. It is found that there are one-armed retrograde wave modes which are trapped in an inner region of the disk. The eigenfrequency ω of the lowest order mode is given by ∣ω∣ ≲ ΩK(r s) (z 0/r s)2, where r s is the radius of the central star, z 0 is the half-thickness of the disk, and ΩK(r s) is the Keplerian angular frequency at the surface of the star.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Kato, S.: 1983, Publ. Astron. Soc. Japan 35, 249.
Okazaki, A. T. and Kato, S.: 1985, Publ. Astron. Soc. Japan 37, 683.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1986 D. Reidel Publishing Company
About this chapter
Cite this chapter
Okazaki, A.T., Kato, S. (1986). One-Armed Oscillations of a Non-Selfgravitating Polytropic Disk. In: Kitamura, M., Budding, E. (eds) Third Asian-Pacific Regional Meeting of the International Astronomical Union. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4630-9_25
Download citation
DOI: https://doi.org/10.1007/978-94-009-4630-9_25
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8558-8
Online ISBN: 978-94-009-4630-9
eBook Packages: Springer Book Archive