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Stability criteria for mass transfer in binary stellar evolution

Soberman, G. E. and Phinney, E. S. and van den Heuvel, E. P. J. (1997) Stability criteria for mass transfer in binary stellar evolution. Astronomy and Astrophysics, 327 . pp. 620-635. ISSN 0004-6361.

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The evolution of a binary star system by various analytic approximations of mass transfer is discussed, with particular attention payed to the stability of these processes against runaway on the thermal and dynamical timescales of the mass donating star. Mass transfer in red giant - neutron star binary systems is used as a specific example of such mass transfer, and is investigated. Hjellming & Webbink's (1987) results on the dynamic timescale response of a convective star with a core to mass loss are applied, with new results. It is found that mass transfer is usually stable, as long as the wind's specific angular momentum does not exceed the angular momentum per reduced mass of the system. This holds for both dynamical and thermal timescales. Those systems which are not stable will usually transfer mass on the thermal timescale. Included are graphs illustrating the variation of ∂ ln rL/∂ ln m = ζ_L with mass ratio in the binary, for various parameters in the non-conservative mass transfer, as well as evolutionary paths of interacting red giant neutron star binaries.

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Additional Information:© 1997 EDP Sciences. Received 18 December 1996; Accepted 26 May 1997. This work was supported by NSF grant AST93-15455 and NASA grant NAG5-2756.
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Subject Keywords:close binaries - tidal interaction - mass transfer
Record Number:CaltechAUTHORS:20190208-145229519
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92805
Deposited By: Tony Diaz
Deposited On:10 Feb 2019 23:29
Last Modified:03 Oct 2019 20:48

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