Sensitivity in the models of massive stars

Details Sensitivity in the models of massive stars Sensitivity in the models of massive stars

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.161..133b&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 161, no. 1, Nov. 1989, p. 133-143.

Astronomy and Astrophysics

Astrophysics

2

Main Sequence Stars, Stellar Mass, Stellar Models, Supermassive Stars, Stellar Evolution, Stellar Mass Ejection, Stellar Temperature

Scientific paper

Two related problems are discussed in this article: the width of the Main-Sequence of massive stars and sensitivity features introduced into the evolutionary tracks of massive stars by mass loss and core-overshooting. It is suggested that core-overshooting may not necessarily be implied by the observations of the width of the Main-Sequence band. It is also noted that models evolved with both mass loss and/or core-overshooting reveal the presence of a large and unexplained expansion of the stellar models under certain conditions. This sensitivity feature would seem to be a fundamental feature inherent to the structure of massive stars.

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