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Accretion from Stellar Winds

Published online by Cambridge University Press:  12 April 2016

Mario Livio
Mario Livio*
Affiliation:
Dept. of Astronomy, Univ. of Illinois, Urbana, IL 61801 and Dept. of Physics, Technion, Haifa 32000, Israel

Abstract

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Recent calculations have demonstrated that accretion from a stellar wind is very probably unsteady. The average rate of accretion of angular momentum is lower by about a factor 5 than the rate at which angular momentum is deposited into the Bondi-Hoyle accretion cylinder. This makes disk formation from wind accretion very difficult, in particular in the case of massive x-ray binaries. A combination of x-ray, uv and optical observations of symbiotic and related systems, as well as spin-up information on x-ray binaries, can be used to determine whether an accretion disk does form. Such observations can provide us with valuable information on the process of accretion from an inhomogeneous medium.

Type
Session 2. The Physics of the Symbiotic Phenomenon
Information
International Astronomical Union Colloquium , Volume 103: The Symbiotic Phenomenon , 1988 , pp. 149 - 160
Copyright
Copyright © Kluwer 1988

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