Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ap%26ss.104..367n&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 104, no. 2, Sept. 1984, p. 367-387. Sponsorship: Ministry of Education, Sc
Astronomy and Astrophysics
Astrophysics
12
A Stars, B Stars, Binary Stars, Stellar Evolution, Stellar Mass, Hertzsprung-Russell Diagram, Mass Transfer, Stellar Models, Supermassive Stars
Scientific paper
The case-A evolution of close binary systems with total mass of 20.4 solar mas is investigated by following the evolution of both components simultaneously. The evolution is followed up to the stage at which a system overflows the outer critical surface or evolves into the phase of mode-Br mass transfer. It is found that the evolution of the systems can be classified into six types. The ranges of initial parameters which lead systems to each type of evolution are shown on the initial-parameter plane. The evolutionary features of each evolution type are described in detail.
Nakamura Maho
Nakamura Yoshifumi
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