Statistics – Computation
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26as...96..269s&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 96, no. 2, p. 269-331.
Statistics
Computation
2211
Computational Astrophysics, Stellar Evolution, Stellar Models, Hertzsprung-Russell Diagram, Massive Stars, Optical Thickness, Photoionization, Stellar Atmospheres, Stellar Envelopes, Stellar Mass Ejection
Scientific paper
New grids of stellar evolutionary models covering the range of 0.8 to 120 solar masses have been computed for metallicites Z = 0.020 and Z = 0.001. The models use the new opacities by Rogers and Iglesias (1991) and by Kurucz (1991) at low T. The consequent changes in the solar helium content, in the mixing length ratio and in the overshooting parameter are taken into account after careful calibrations. Important physical ingredients as the nuclear reaction rates and the neutrino loss rates have been updated. The ionization of the main heavy elements is calculated in details. Results of the models are given in a compact way at corresponding evolutionary stages in each model. In addition to the tables, we shortly present some general results on the tracks in the HR diagrams, the lifetimes in the H-, He-, C-burning phases, and on massive and WR stars.
Maeder Andre
Meynet George
Schaerer Daniel
Schaller Gernot
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