FOR 1048: Instabilities, Turbulence and Transport in Cosmic Magnetic Fields

FOR 1048：宇宙磁场中的不稳定性、湍流和输运

• 批准号: 60352348
• 金额: --
• 依托单位: Institut für Theoretische Physik I: Plasma-, Laser- und Atomphysik
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/60352348?language=en
• 关键词: 1048; Instabilities; Turbulence; Transport; Cosmic

Magnetic fields play a fundamental role in many astrophysical systems. This is a consequence of the fact that the latter are most often composed of a dominant plasma component. Prominent examples of cosmic magnetic fields are the solar corona and wind or the interstellar and intergalactic plasma. In many cases the kinetic energy density of the plasma and the magnetic energy density are of the same order so that neither a test particle nor a test wave description can be justified but rather a self-consistent treatment has to be developed. Subject of the Research Unit is an analysis of the profound implications of the non-negligible mutual influences for the instabilities, the turbulence and the transport processes in cosmic magnetic fields. In the foreground is a study of fundamental physical processes by analytical, numerical as well as experimental means. The results will be applied to astrophysical systems.

磁场在许多天体物理系统中起着重要作用。这是因为后者通常由主要的等离子体成分组成。宇宙磁场的突出例子是日冕和风或星际和星系间等离子体。在许多情况下，等离子体的动能密度和磁能密度具有相同的数量级，因此，无论是测试粒子还是测试波的描述都是不合理的，而是必须进行自洽处理。研究单位的主题是分析宇宙磁场中不可忽视的相互影响对不稳定性、湍流和传输过程的深刻影响。前景是通过分析，数值和实验手段研究基本物理过程。研究结果将应用于天体物理系统。