Pulsation periods and critical frequencies in low gravity yellow supergiant models

Details Pulsation periods and critical frequencies in low gravity yellow supergiant models Pulsation periods and critical frequencies in low gravity yellow supergiant models

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ap%26ss.104..405a&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 104, no. 2, Sept. 1984, p. 405-408.

Astronomy and Astrophysics

Astrophysics

3

Stellar Models, Stellar Oscillations, Supergiant Stars, Critical Frequencies, Nonadiabatic Conditions, Stellar Gravitation, Traveling Waves

Scientific paper

It is shown that the coincidence between the pulsation periods and the critical frequencies found by Fadeyev (1982) results from strong effects on non-adiabaticity on the linear pulsation periods in low surface gravity models. If the boundary condition of running waves for super-critical pulsations is applied, it is found that the linear growth-rates are considerably affected by the boundary condition.

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