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Formation and Evolution of Low-Mass Algols

Published online by Cambridge University Press:  12 April 2016

L.R. Yungelson ,
A.V. Tutukov  and
A.V. Fedorova
L.R. Yungelson
Affiliation:
Astronomical Council of the U.S.S.R. Academy of Sciences, 48 Pyatnitskaya Str., 109017 Moscow, U.S.S.R.
A.V. Tutukov
Affiliation:
Astronomical Council of the U.S.S.R. Academy of Sciences, 48 Pyatnitskaya Str., 109017 Moscow, U.S.S.R.
A.V. Fedorova
Affiliation:
Astronomical Council of the U.S.S.R. Academy of Sciences, 48 Pyatnitskaya Str., 109017 Moscow, U.S.S.R.

Abstract

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We discuss the origin, evolution and fate of low-mass Algols (LMA) that have components with initial masses less than 2.5 M0. The semi-major axes of orbits of pre-LMA do not exceed 20-25 R0. The rate of formation of Algol-type stars is ~ 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 ~ 0.88 (like L870-2). Some of them even merge through angular momentum loss caused by gravitational waves.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 107: Algols , 1989 , pp. 141 - 153
Copyright
Copyright © Kluwer 1989

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