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Binary evolution models with rotation

N. Langer·S. -C. Yoon·J. Petrovic·A. Heger
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Abstract

We discuss the first available binary evolution models which include up-to-date rotational physics for both components, as well as angular momentum accretion and spin-orbit coupling. These models allow a self-consistent computation of the mass transfer efficiency during Roche-lobe overflow phases, and a determination of the transition from quasi-conservative to non-conservative evolution. Applications to massive binary systems lead to predictions for the spin rates of compact objects in binaries, and for the occurrence of gamma-ray bursts from collapsars in binaries. Rotational effects in accreting white dwarfs are found to stabilise the shell burning and decrease the carbon abundance in progenitor models for Chandrasekhar-mass Type Ia supernovae, and to potentially avoid a detonation of the white dwarf within the sub-Chandrasekhar mass scenario.

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N. Langer, S. -C. Yoon, J. Petrovic, A. Heger. 2003-02-12. Binary evolution models with rotation. https://arxiv.org/abs/astro-ph/0302232

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