Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26as...69..251h&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 69, no. 2, May 1987, p. 251-262. Research supported by the S
Astronomy and Astrophysics
Astrophysics
32
Stellar Evolution, Stellar Interiors, Stellar Models, Stellar Motions, Stellar Structure, Apsides, Hertzsprung-Russell Diagram, Main Sequence Stars, Tables (Data)
Scientific paper
This is the third paper in a series describing the results of extensive stellar evolution calculations. The internal structure constants kj (j = 2, 3, 4) have been computed for a fine grid of stellar models covering the HR-diagram from the zero-age main sequence to the subgiant region. These constants represent the influence of the internal structure on the disturbing potentials of stars, and they are needed for prediction of theoretical apsidal motion rates in close eccentric binaries as well as for other tidal effects. Results for four different initial chemical compositions are presented. The opacity tables by Cox and Stewart (1969) have been adopted, and a mixing length parameter of l/Hp = 2.0 has been used throughout. The results are compared with previous calculations.
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