AGB Winds with Gas-Dust Drift in Stellar Evolution Codes

被引：5
|
作者：
Mattsson, Lars [1 ]
Sandin, Christer
机构：
[1] KTH Royal Inst Technol, Nord Inst Theoret Phys Nordita, Hannes Alfvens Vag 12, S-10691 Stockholm, Sweden
来源：
UNIVERSE | 2021年 / 7卷 / 05期
关键词：
stars; AGB and post-AGB; mass-loss; evolution; ASYMPTOTIC GIANT BRANCH; MASS-LOSS; STAR WINDS; GRAINS; SILICATE; DRIVEN; MODELS;
D O I：
10.3390/universe7050113
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A significant fraction of new metals produced in stars enter the interstellar medium in the form of dust grains. Including dust and wind formation in stellar evolution models of late-stage low- and intermediate-mass stars provides a way to quantify their contribution to the cosmic dust component. In doing so, a correct physical description of dust formation is of course required, but also a reliable prescription for the mass-loss rate. Here, we present an improved model of dust-driven winds to be used in stellar evolution codes and insights from recent detailed numerical simulations of carbon-star winds including drift (decoupling of dust and gas). We also discuss future directions for further improvement.
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页数：10
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