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Dusty Common Envelope Evolution

delete2025-08-21
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PRE
AI
L
L. Siess *
L
Luis C. Bermúdez-Bustamante
O
Orsola De Marco
D
Daniel J. Price
M
Miguel González-Bolívar
C
Chunliang Mu
M
Mike Y. M. Lau
R
Ryosuke Hirai
T
T. Danilovich
DOI：10.3390-galaxies12060082delete
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摘要

摘要

En 中文
我们首次对公共包层演化进行了流体动力学模拟，其中包含了尘埃的形成以及辐射压力对尘埃颗粒的影响。我们针对由一颗1.7 M⊙和3.7 M⊙的AGB星作为主星、伴星为0.6 M⊙的双星系统，进行了公共包层演化的光滑粒子流体动力学模拟。我们的计算结果表明，尘埃形成对气体动力学的影响可以忽略不计，这主要是因为尘埃在已经松散的材料中形成。包层的膨胀和冷却导致尘埃在非常早期且高效地生成。在我们的形式化方法中，由于未考虑尘埃的破坏，几乎100%的可用的、未被锁定在CO凝聚物中的碳会凝结在尘埃颗粒中。因此，这种大规模的尘埃生成强烈依赖于包层质量和成分，特别是其C-O比，并对观测特征产生显著影响，导致光球半径比无尘埃系统的光球半径大约一个数量级。
Keyword:
common envelope evolution
dust formation
radiation pressure
hydrodynamical simulations
AGB stars

期刊

Galaxies 封面图
Galaxies
IF:
3.8
论文数:
829
被引数:
2.1K

机构

M
Monash University
学者数:
5.4W
论文数: 5.4W
被引数: 79
U
Université Libre de Bruxelles (ULB)
学者数:
265
论文数: 102
被引数: 9
M
Macquarie University
学者数:
1.2W
论文数: 1.5W
被引数: 2.2W
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