New criterion for secular instability of rapidly rotating stars

Journal Article · Sat Oct 01 04:00:00 EDT 1977 · Astrophys. J., Lett.; (United States)

DOI:https://doi.org/10.1086/182537· OSTI ID:7281956

Bardeen, J M; Friedman, J L; Schutz, B F; Sorkin, R

A new variational criterion sufficient for secular instability of rapidly rotating stars to bar modes driven by gravitational radiation reaction is derived. Application to disk models indicates that differentially rotating stars can be stable beyond where they should be unstable according to the tensor virial method. We show why the tensor virial method is invalid.

• Research Organization: Department of Physics, University of Washington
• OSTI ID: 7281956
• Journal Information: Astrophys. J., Lett.; (United States), Journal Name: Astrophys. J., Lett.; (United States) Vol. 217:1; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANGULAR MOMENTUM
FLUID MECHANICS
GRAVITATIONAL RADIATION
HYDRODYNAMICS
INSTABILITY
MATHEMATICAL MODELS
MECHANICS
MOTION
RADIATIONS
ROTATION
STAR MODELS
STARS