MRI-DRIVEN ANGULAR MOMENTUM TRANSPORT IN PROTOPLANETARY DISKS
MRI-DRIVEN ANGULAR MOMENTUM TRANSPORT IN PROTOPLANETARY DISKS
复制标题
原行星盘中 MRI 驱动的角动量输运
DOI：
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发表时间：
2013
期刊：
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通讯作者：
C. Charbonnel
中科院分区：
文献类型：
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作者：
C. Charbonnel
吸积盘中的角动量输运问题一直是理论天体物理研究的热点。在过去的二十年里，由磁旋转不稳定性驱动的MHD湍流已经成为实现这一目标的有效机制。然而，许多问题和不确定性仍然存在，其中包括湍流的饱和水平。行星形成模型中磁旋转不稳定性的后果仍在研究中。本次讲座于2012年9月在法国Aussois的“角动量输运在恒星形成和早期演化中的作用和机制”学院举行，旨在介绍目前处于学术研究前沿的磁旋转不稳定性的历史发展、现状和悬而未决的问题。
Angular momentum transport in accretion disk has been the focus of intense research in theoretical astrophysics for many decades. In the past twenty years, MHD turbulence driven by the magnetorota- tional instability has emerged as an efficient mechanism to achieve that goal. Yet, many questions and uncertainties remain, among which the saturation level of the turbulence. The consequences of the magnetoro- tational instability for planet formation models are still being investi- gated. This lecture, given in September 2012 at the school "Role and mechanisms of angular momentum transport in the formation and early evolution of stars" in Aussois (France), aims at introducing the histor- ical developments, current status and outstanding questions related to the magnetorotational instability that are currently at the forefront of academic research.