太阳活动长期变化的模型

IF 20.9 1区 物理与天体物理 Living Reviews in Solar Physics Pub Date : 2023-06-26 DOI:10.1007/s41116-023-00037-y
Bidya Binay Karak
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引用次数: 0

摘要

太阳周期的一个明显特征是它在不同周期之间的变化。在本文中,我们回顾了太阳周期长期变化的发电机模型。所谓长期变化,我们指的是超过11年周期的周期调制,包括格内维舍夫-奥尔/偶奇规则、极大极小期、极大极大期、格莱斯伯格周期和苏斯周期。在简要回顾了观测数据之后,我们提出了太阳周期的发电机模型。通过仔细分析发电机模型和观测数据,我们确定了以下主要原因:(1)磁反馈对流动,(2)随机强迫,(3)发电机各过程的时间延迟。为了说明这些原因,我们给出了周期调制的一些说明性模型的结果,并讨论了它们的优缺点。我们还讨论了一些关键问题及其当前趋势。文章最后讨论了我们目前对从发电机模型得到的磁周期和大尺度速度的详细特征与可靠观测结果进行比较的无知状态。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Models for the long-term variations of solar activity

One obvious feature of the solar cycle is its variation from one cycle to another. In this article, we review the dynamo models for the long-term variations of the solar cycle. By long-term variations, we mean the cycle modulations beyond the 11-year periodicity and these include, the Gnevyshev–Ohl/Even–Odd rule, grand minima, grand maxima, Gleissberg cycle, and Suess cycles. After a brief review of the observed data, we present the dynamo models for the solar cycle. By carefully analyzing the dynamo models and the observed data, we identify the following broad causes for the modulation: (1) magnetic feedback on the flow, (2) stochastic forcing, and (3) time delays in various processes of the dynamo. To demonstrate each of these causes, we present the results from some illustrative models for the cycle modulations and discuss their strengths and weakness. We also discuss a few critical issues and their current trends. The article ends with a discussion of our current state of ignorance about comparing detailed features of the magnetic cycle and the large-scale velocity from the dynamo models with robust observations.

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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.
期刊最新文献
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