A theory of winds from Wolf-Rayet stars

D. Eichler; A. Bar Shalom; J. Oreg

doi:10.1086/176013

A theory of winds from Wolf-Rayet stars

D. Eichler, A. Bar Shalom, J. Oreg

Department of Physics

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

When the effective opacity exceeds a critical value, radiation-induced mass loss can undergo a sudden increase, relative to the lower opacities, even when the luminosity is formally sub-Eddington. It is suggested that this is the case for winds from Wolf-Rayet stars. It is further argued that the wind will not be of a super-Eddington character, but rather that the opacity is adjusted via its interplay with the flow parameters such that the new Eddington luminosity just nearly equals the luminosity of the star itself.

Original language	English
Pages (from-to)	858-861
Number of pages	4
Journal	Astrophysical Journal
Volume	448
Issue number	2
DOIs	https://doi.org/10.1086/176013
State	Published - 1 Aug 1995

Keywords

Atomic processes
Stars: Wolf-Rayet
Stars: mass loss

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/176013

Cite this

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abstract = "When the effective opacity exceeds a critical value, radiation-induced mass loss can undergo a sudden increase, relative to the lower opacities, even when the luminosity is formally sub-Eddington. It is suggested that this is the case for winds from Wolf-Rayet stars. It is further argued that the wind will not be of a super-Eddington character, but rather that the opacity is adjusted via its interplay with the flow parameters such that the new Eddington luminosity just nearly equals the luminosity of the star itself.",

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N2 - When the effective opacity exceeds a critical value, radiation-induced mass loss can undergo a sudden increase, relative to the lower opacities, even when the luminosity is formally sub-Eddington. It is suggested that this is the case for winds from Wolf-Rayet stars. It is further argued that the wind will not be of a super-Eddington character, but rather that the opacity is adjusted via its interplay with the flow parameters such that the new Eddington luminosity just nearly equals the luminosity of the star itself.

AB - When the effective opacity exceeds a critical value, radiation-induced mass loss can undergo a sudden increase, relative to the lower opacities, even when the luminosity is formally sub-Eddington. It is suggested that this is the case for winds from Wolf-Rayet stars. It is further argued that the wind will not be of a super-Eddington character, but rather that the opacity is adjusted via its interplay with the flow parameters such that the new Eddington luminosity just nearly equals the luminosity of the star itself.

KW - Atomic processes

KW - Stars: Wolf-Rayet

KW - Stars: mass loss

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A theory of winds from Wolf-Rayet stars

Abstract

Keywords

ASJC Scopus subject areas

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