Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...119..253b&link_type=abstract
Astronomy and Astrophysics, vol. 119, no. 2, Mar. 1983, p. 253-255.
Astronomy and Astrophysics
Astrophysics
1
Gravitational Constant, Main Sequence Stars, Solar Oscillations, Stellar Evolution, Stellar Mass, Cosmology, Stability, Stellar Gravitation, Stellar Models, Universe
Scientific paper
The evolution of a one solar mass main sequence star is computed in the Multiplicative Creation Hypothesis (MCH) with a solar age of 4.6 billion years and an age of the Universe of 18 billion years. The result shows the same instability with respect to the spherical surface harmonic order equal to one, the g-sub-one, and the g-sub-two modes as the standard sequence. However, the unstable phase lasts longer than in the standard case. In the MCH frame, the present sun is still marginally unstable, and the length of the unstable phase decreases when the age of the Universe increases. The e-folding time of the instability is of the order of 10 million years. Pulsations should therefore be observed in solar type stars or else the instability should have unknown consequences for the evolution of the models.
Boury A.
Gabriel Michael
Noels Arlette
Scuflaire Richard
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