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The solar dynamo

机译:太阳发电机

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摘要

Observations relevant to current models of the solar dynamo are presented, with emphasis on the history of solar magnetic activity and on the location and nature of the solar tachocline. The problems encountered when direct numerical simulation is used to analyse the solar cycle are discussed, and recent progress is reviewed. Mean field dynamo theory is still the basis of most theories of the solar dynamo, so a discussion of its fundamental principles and its underlying assumptions is given. The role of magnetic helicity is discussed. Some of the most popular models based on mean field theory are reviewed briefly. Dynamo models based on severe truncations of the full MHD equations are discussed.
机译:提出了与当前太阳发电机模型有关的观测结果,重点是太阳磁活动的历史以及太阳速滑线的位置和性质。讨论了使用直接数值模拟来分析太阳周期时遇到的问题,并综述了最新进展。平均场发电机理论仍然是大多数太阳发电机理论的基础,因此对它的基本原理及其基本假设进行了讨论。讨论了磁螺旋作用。简要回顾了基于均值场理论的一些最受欢迎的模型。讨论了基于完整MHD方程的严重截断的Dynamo模型。

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