Decay instability as a possible cause of oscillation mode transformation in Beta Cephei variables

Details Decay instability as a possible cause of oscillation mode transformation in Beta Cephei variables Decay instability as a possible cause of oscillation mode transformation in Beta Cephei variables

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pazh....7..231v&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 7, Apr. 1981, p. 231-234.) Soviet Astronomy Letters, vol. 7, Mar.-Apr. 1981, p. 128, 12

Astronomy and Astrophysics

Astronomy

2

Cepheid Variables, Stellar Oscillations, Vibration Mode, Mode Transformers, Nonlinear Equations, Stellar Models, Systems Stability

Scientific paper

A three-mode, nonlinear resonance interaction by which unstable perturbations trapped in deep layers would be transformed into either radial or nonradial pulsations of the whole star is discussed. Attention is given the presumed decay processes operating in Beta Cep variables, and a mechanism accounting for the origin of the 160-min oscillations observed by Severnyi et al. (1980) in the sun is suggested.

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