Radial vibrations in a 5-solar-mass double-shell burning hydrogen-helium star

Details Radial vibrations in a 5-solar-mass double-shell burning hydrogen-helium star Radial vibrations in a 5-solar-mass double-shell burning hydrogen-helium star

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.168..217k&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 168, no. 2, June 1990, p. 217-224.

Astronomy and Astrophysics

Astrophysics

1

B Stars, Helium Hydrogen Atmospheres, Main Sequence Stars, Stellar Envelopes, Stellar Oscillations, Magnetohydrodynamic Stability, Metallicity, Stellar Composition

Scientific paper

A model of 5-solar-mass hydrogen-helium star with no metals has been considered. The properties of the adiabatic oscillations were obtained, and the vibrational instability of the model has been investigated. The model is a double-shell burning star. Calculations were done for the fundamental mode as well as the first and the second harmonics. The model has been found vibrationally unstable against radial adiabatic pulsations.

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