The evolution of low-mass close binary systems with a compact component. II - Systems captured by angular momentum losses

Details The evolution of low-mass close binary systems with a compact component. II - Systems captured by angular momentum losses The evolution of low-mass close binary systems with a compact component. II - Systems captured by angular momentum losses

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...208...52p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 208, no. 1-2, Jan. 1989, p. 52-62. Research supported by ZWO.

Astronomy and Astrophysics

Astrophysics

71

Angular Momentum, Cataclysmic Variables, Stellar Evolution, Stellar Mass, Stellar Systems, X Ray Binaries, Hertzsprung-Russell Diagram, Mass Transfer, Neutron Stars, Symbiotic Stars, White Dwarf Stars

Scientific paper

The paper presents numerical calculations simulating the evolution of low-mass, interacting close binary systems in which mass-exchange is started from a 1.0-2.0 solar mass-losing component towards an accreting compact companion. The range of initial periods of these systems has been chosen to: (1) result in the capture of the system by angular momentum losses, and (2) cover a large part of the possible evolutionary paths of short-period cataclysmic variables and low-mass X-ray binary systems. Such an investigation extends the initial donor star mass to higher values than in previous similar studies. The systemic characteristics at different evolutionary stages of the mass exchange phase are in good agreement with results obtained in previous work. It is argued that the observed spread in mass transfer rates for a given orbital period is, by means of the process of magnetic braking, largely related to the spread in the moments of inertia of the mass-losing component in these systems. This reflects the natural distribution of initial periods (after termination of the spiral-in phase) of their progenitor systems.

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