Linear radial and nonradial modes of oscillation of hot white dwarfs

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

DOI:https://doi.org/10.1086/155567· OSTI ID:7082915

DeGregoria, A J

Low-order linear radial and nonradial quadrupole modes of oscillation of hot white dwarfs with hydrogen envelopes are evaluated in the quasi-adiabatic approximation. Luminosities range from 10/sup 36/ to 10/sup 38/ ergs s/sup -1/. Masses range between 0.6 and 1.4 M/sub sun/Models are found with unstable radial modes as high as the third harmonic. The first nonradial quadrupole gravity mode is always unstable. The results may be relevant to pulsating X-ray sources, in general, and are applied, specifically, to Cen X-3, Her X-1, and SMC X-1.

• Research Organization: Center for Astrophysics, Harvard College Observatory and Smithsonian Astrophysical Observatory
• OSTI ID: 7082915
• Journal Information: Astrophys. J.; (United States), Vol. 217:1
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
WHITE DWARF STARS
OSCILLATION MODES
STAR MODELS
BINARY STARS
COSMIC X-RAY SOURCES
OSCILLATIONS
PULSATIONS
THERMODYNAMICS
COSMIC RAY SOURCES
DWARF STARS
MATHEMATICAL MODELS
STARS
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources