self-consistent Simulations of Alfven Wave Driven Winds from the Sun and Stars
self-consistent Simulations of Alfven Wave Driven Winds from the Sun and Stars
复制标题
来自太阳和恒星的阿尔文波驱动风的自洽模拟
DOI：
10.1007/s11214-010-9709-0
复制
发表时间：
2011
影响因子：
10.3
通讯作者：
T. K.
中科院分区：
文献类型：
--
作者：
Suzuki;T. K.
我们回顾了我们最近关于Alfvén波驱动风的结果。首先，我们给出了从光球层到行星际区域太阳风的自洽一维MHD模拟结果。在这里，我们强调阿尔芬波在密度分层日冕和太阳风中反射的重要性。我们还介绍了最近的Hinode观测，它可能探测到Fujimura和Tsuneta(Asterphys)的横向(AlfvéNic)波的反射特征。J.702：1443,2009)。然后，我们展示了来自红巨星的Alfvén波驱动风的结果。随着恒星演化为红巨星分支，恒星风的性质从稳定的日冕风急剧变化为间歇性的色球风。我们还讨论了恒星演化如何影响恒星大气中的波反射，以及MHD湍流吸积盘风的异同。
We review our recent results of Alfvén wave-driven winds. First, we present the result of self-consistent 1D MHD simulations for solar winds from the photosphere to interplanetary region. Here, we emphasize the importance of the reflection of Alfvén waves in the density stratified corona and solar winds. We also introduce the recent Hinode observation that might detect the reflection signature of transverse (Alfvénic) waves by Fujimura and Tsuneta (Astrophys. J. 702:1443, 2009). Then, we show the results of Alfvén wave-driven winds from red giant stars. As a star evolves to the red giant branch, the properties of stellar winds drastically change from steady coronal winds to intermittent chromospheric winds. We also discuss how the stellar evolution affects the wave reflection in the stellar atmosphere and similarities and differences of accretion disk winds by MHD turbulence.