对流和脉动之间的相互作用

IF 20.9 1区 物理与天体物理
Günter Houdek, Marc-Antoine Dupret
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引用次数: 43

摘要

本文综述了我们目前对恒星对流动力学建模的理解。对于脉动的一维恒星结构,提出了几种半解析的时变对流模型,它们具有不同的对流湍流速度场如何与恒星整体振荡耦合的公式。在这篇综述中,我们把重点放在两个,广泛使用的,时变对流公式估计脉动特性在一维恒星模型。应用于脉动恒星,给出了振荡特性的结果,如对流动力学对振荡频率的影响,或脉动模式的稳定性,在经典脉动星和支持太阳型振荡的恒星。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Interaction Between Convection and Pulsation

Interaction Between Convection and Pulsation

This article reviews our current understanding of modelling convection dynamics in stars. Several semi-analytical time-dependent convection models have been proposed for pulsating one-dimensional stellar structures with different formulations for how the convective turbulent velocity field couples with the global stellar oscillations. In this review we put emphasis on two, widely used, time-dependent convection formulations for estimating pulsation properties in one-dimensional stellar models. Applications to pulsating stars are presented with results for oscillation properties, such as the effects of convection dynamics on the oscillation frequencies, or the stability of pulsation modes, in classical pulsators and in stars supporting solar-type oscillations.

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来源期刊
Living Reviews in Solar Physics
Living Reviews in Solar Physics ASTRONOMY & ASTROPHYSICS-
自引率
1.40%
发文量
3
期刊介绍: Living Reviews in Solar Physics, a platinum open-access journal, publishes invited reviews covering research across all areas of solar and heliospheric physics. It distinguishes itself by maintaining a collection of high-quality reviews regularly updated by the authors. Established in 2004, it was founded by the Max Planck Institute for Solar System Research (MPS). "Living Reviews®" is a registered trademark of Springer International Publishing AG.
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