SIMBAD references

2016ApJ...833..108S - Astrophys. J., 833, 108-108 (2016/December-2)

Nonconservative mass transfer in massive binaries and the formation of Wolf-rayet+O binaries.

SHAO Y. and LI X.-D.

Abstract (from CDS):

The mass transfer efficiency during the evolution of massive binaries is still uncertain. We model the mass transfer processes in a grid of binaries to investigate the formation of Wolf-Rayet+O (WR+O) binaries, taking into account two kinds of non-conservative mass transfer models: Model I with rotation-dependent mass accretion, and Model II of half mass accretion. Generally the mass transfer in Model I is more inefficient, with the average efficiency in a range of ∼0.2-0.7 and <=0.2 for Case A and Case B mass transfer, respectively. We present the parameter distributions for the descendant WR+O binaries. By comparing the modeled stellar mass distribution with the observed Galactic WR+O binaries, we find that highly non-conservative mass transfer is required.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): binaries: close - stars: evolution - stars: massive - stars: Wolf-Rayet - stars: Wolf-Rayet

Status at CDS:  

Simbad objects: 10

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