ON MASS LOSS FROM EVOLVED MASSIVE STARS

We consider stationary out flowing stellar envelopes accelerated by a radiation flux pressure. A method is developed describing a spherically symmetric flow in radiational hydrodynamics in regions with arbitrary optical depth (τ ). The solution of the derived system of differential equations is obta...

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Main Authors: A. V. Dorodnitsyn, G. S. Bisnovatyi-Kogan
Format: Article
Language:English
Published: Odessa I. I. Mechnykov National University 2017-03-01
Series:Odessa Astronomical Publications
Online Access:http://oap.onu.edu.ua/article/view/93017
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author A. V. Dorodnitsyn
G. S. Bisnovatyi-Kogan
author_facet A. V. Dorodnitsyn
G. S. Bisnovatyi-Kogan
author_sort A. V. Dorodnitsyn
collection DOAJ
description We consider stationary out flowing stellar envelopes accelerated by a radiation flux pressure. A method is developed describing a spherically symmetric flow in radiational hydrodynamics in regions with arbitrary optical depth (τ ). The solution of the derived system of differential equations is obtained numerically. It proceeds through the singular point, where a velocity is equal to the isothermal sound speed, and satisfies zero temperature and pressure boundary conditions at the infinity. Method is discussed of self- consistent evolutionary calculations for massive stars on the stage of yellow and red supergiants, with a mass loss determined unambiguously.
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spelling doaj.art-696412fe5930460dae773caf70a595ca2022-12-22T01:24:42ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152017-03-0112025025210.18524/1810-4215.1999.12.9301793017ON MASS LOSS FROM EVOLVED MASSIVE STARSA. V. Dorodnitsyn0G. S. Bisnovatyi-KoganSpace Research Institute, Profsoyuznaya st. 84/32, Moscow, RussiaWe consider stationary out flowing stellar envelopes accelerated by a radiation flux pressure. A method is developed describing a spherically symmetric flow in radiational hydrodynamics in regions with arbitrary optical depth (τ ). The solution of the derived system of differential equations is obtained numerically. It proceeds through the singular point, where a velocity is equal to the isothermal sound speed, and satisfies zero temperature and pressure boundary conditions at the infinity. Method is discussed of self- consistent evolutionary calculations for massive stars on the stage of yellow and red supergiants, with a mass loss determined unambiguously.http://oap.onu.edu.ua/article/view/93017
spellingShingle A. V. Dorodnitsyn
G. S. Bisnovatyi-Kogan
ON MASS LOSS FROM EVOLVED MASSIVE STARS
Odessa Astronomical Publications
title ON MASS LOSS FROM EVOLVED MASSIVE STARS
title_full ON MASS LOSS FROM EVOLVED MASSIVE STARS
title_fullStr ON MASS LOSS FROM EVOLVED MASSIVE STARS
title_full_unstemmed ON MASS LOSS FROM EVOLVED MASSIVE STARS
title_short ON MASS LOSS FROM EVOLVED MASSIVE STARS
title_sort on mass loss from evolved massive stars
url http://oap.onu.edu.ua/article/view/93017
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