Journal ArticleDOI
Time-dependent models of radiatively driven stellar winds. I - Nonlinear evolution of instabilities for a pure absorption model
TLDR
In this paper, numerical radiation-hydrodynamics simulations of the nonlinear evolution of instabilities in radiatively driven stellar winds have been performed and the results show a strong tendency for the unstable flow to form rather sharp rarefactions in which the highest speed material has very low density.Abstract:
Numerical radiation-hydrodynamics simulations of the nonlinear evolution of instabilities in radiatively driven stellar winds have been performed. The results show a strong tendency for the unstable flow to form rather sharp rarefactions in which the highest speed material has very low density. The qualitative features of the model agree well with the reqirements of displaced narrow absorption components in UV lines.read more
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The Treatment of Non-LTE Line Blanketing in Spherically Expanding Outflows
TL;DR: In this article, the authors proposed to use the idea of super levels first pioneered by Anderson to improve the performance of the non-LTE radiative transfer code of Hillier stars with stellar winds.
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Dynamics of Line-driven Disk Winds in Active Galactic Nuclei
TL;DR: In this paper, the authors present the results of axisymmetric time-dependent hydrodynamic calculations of line-driven winds from accretion disks in active galactic nuclei (AGNs).
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Presupernova Evolution of Massive Single and Binary Stars
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Journal ArticleDOI
Mass Loss: Its Effect on the Evolution and Fate of High-Mass Stars
TL;DR: For example, the authors showed that mass loss rates for standard metallicity-dependent winds of hot stars are lower by a factor of 2-3 compared with rates adopted in modern stellar evolution codes, due to the influence of clumping on observed diagnostics.