Formation and evolution of low-mass ALGOLS

Details Formation and evolution of low-mass ALGOLS Formation and evolution of low-mass ALGOLS

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ssrv...50..141y&link_type=abstract

(IAU, NSERC, Canadian Institute of Theoretical Astrophysics, et al., Colloquium on Algols, 107th, Sidney, Canada, Aug. 15-19, 19

Astronomy and Astrophysics

Astrophysics

3

Angular Momentum, Star Formation, Stellar Evolution, Stellar Mass, Dwarf Stars, Main Sequence Stars

Scientific paper

The origin, evolution and fate of low-mass Algols (LMA) that have components with initial masses less than 2.5 MO are discussed. The semimajor axes of orbits of pre-LMA do not exceed 20-25 RO. The rate of formation of Algol-type stars is about 0.01/year. Magnetic stellar winds may be the factor that determines the evolution of LMA. Most LMA end their lives as double helium degenerate dwarfs with M1/M2 of about 0.88 (like L870-2). Some of them even merge through angular momentum loss caused by gravitational waves.

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