This publication provides an overview of magnetic fields in the solar atmosphere with the focus lying on the corona. The solar magnetic field couples the solar interior with the visible surface of the Sun and with its atmosphere. It is also responsible for all solar activity in its numerous manifestations. Thus, dynamic phenomena such as coronal mass ejections and flares are magnetically driven. In addition, the field also plays a crucial role in heating the solar chromosphere and corona as well as in accelerating the solar wind. Our main emphasis is the magnetic field in the upper solar atmosphere so that photospheric and chromospheric magnetic structures are mainly discussed where relevant for higher solar layers. Also, the discussion of the solar atmosphere and activity is limited to those topics of direct relevance to the magnetic field. After giving a brief overview about the solar magnetic field in general and its global structure, we discuss in more detail the magnetic field in active regions, the quiet Sun and coronal holes.

中文翻译：

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太阳大气中的磁场

该出版物概述了太阳大气中的磁场，重点放在日冕上。太阳磁场将太阳内部与太阳的可见表面及其大气耦合。它还对所有太阳活动的众多表现负责。因此，诸如日冕物质抛射和耀斑之类的动态现象是由磁力驱动的。此外，该场在加热太阳色球层和日冕以及加速太阳风方面也起着至关重要的作用。我们的主要重点是太阳上层大气中的磁场，因此主要讨论与较高太阳层相关的光球层和色球层磁性结构。此外，对太阳大气和活动的讨论仅限于与磁场直接相关的主题。