FOR 1048: Instabilities, Turbulence and Transport in Cosmic Magnetic Fields
FOR 1048: Instabilities, Turbulence and Transport in Cosmic Magnetic Fields
批准号:
60352348
负责人:
金额:
$0.0万
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
项目状态:
已结题
起止时间:
2007-12-31 至 2014-12-31
中文摘要
磁场在许多天体物理系统中起着重要作用。这是由于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太阳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是同一量级的,因此,既不能证明测试粒子的描述,也不能证明测试波的描述是合理的,而是必须开发一种自一致的处理方法。研究股的课题是分析宇宙磁场中不可忽略的相互影响对不稳定性、湍流和输运过程的深刻影响。前景是通过分析、数值和实验手段对基本物理过程的研究。研究结果将应用于天体物理系统。
英文摘要
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.
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