太阳的结构和演化

IF 20.9 1区 物理与天体物理
Jørgen Christensen-Dalsgaard
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引用次数: 6

摘要

太阳为恒星结构和演化的一般研究提供了一个关键的基准。此外,关于太阳内部特性的知识对于理解太阳大气现象(包括太阳磁周期)也很重要。在这里,我简要概述了恒星结构和演化的理论,包括所涉及的物理过程和参数。接下来是对太阳演化的讨论,从诞生到最新阶段。作为解释与太阳内部有关的观测的背景,我对太阳模型对其计算所依据的假设的敏感性进行了相当广泛的分析。然后,我将讨论通过日震调查和太阳中微子探测获得的关于太阳内部的详细信息,以及观测到的最轻元素的丰度所提供的进一步限制。对太阳表面丰度测定的修正导致观测推断和太阳模式之间的差异增加,这在一些细节上已经讨论过。最后,我简要地介绍了太阳与其他类似恒星的关系,以及恒星结构和演化的星震研究的前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Solar structure and evolution

Solar structure and evolution

The Sun provides a critical benchmark for the general study of stellar structure and evolution. Also, knowledge about the internal properties of the Sun is important for the understanding of solar atmospheric phenomena, including the solar magnetic cycle. Here I provide a brief overview of the theory of stellar structure and evolution, including the physical processes and parameters that are involved. This is followed by a discussion of solar evolution, extending from the birth to the latest stages. As a background for the interpretation of observations related to the solar interior I provide a rather extensive analysis of the sensitivity of solar models to the assumptions underlying their calculation. I then discuss the detailed information about the solar interior that has become available through helioseismic investigations and the detection of solar neutrinos, with further constraints provided by the observed abundances of the lightest elements. Revisions in the determination of the solar surface abundances have led to increased discrepancies, discussed in some detail, between the observational inferences and solar models. I finally briefly address the relation of the Sun to other similar stars and the prospects for asteroseismic investigations of stellar structure and evolution.

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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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