Inhomogeneous magnetic field in penumbra

半影中的不均匀磁场

• 批准号: 60413561
• 负责人: Dr. Rolf Schlichenmaier
• 金额: --
• 依托单位: Institut für Sonnenphysik (KIS)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2011-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/60413561?language=en
• 关键词: Inhomogeneous; magnetic; field; penumbra

The magnetic activity of the Sun is most visible in sunspots. They are characterized by strong magnetic fields, and a vigorous interaction of magnetism, radiation and plasma motion. The penumbrae of sunspots with their radially oriented filamentary structure and interlaced magnetic field are ideal objects to study and understand magneto-hydrodynamic processes in a hot astrophysical plasma. In penumbrae, motion of magnetized gas with a speed of several kilometers per second, and strong magnetic fields with different orientations coexist and interact on small spatial scales.High-resolution spectro-polarimetric observations of these magneto-convective processes obtained with the Japanese-US-American HINODE satellite allow us to gain new insights into the mechanisms of energy transport in penumbrae. These observations have the capability to lead to a new understanding of those magneto-convective processes, which are crucial for understanding the nature of sunspots.

太阳的磁场活动在太阳黑子中最为明显。它们的特征是强磁场，以及磁性、辐射和等离子体运动的强烈相互作用。太阳黑子半影区具有辐射状的平行结构和交错的磁场，是研究和理解高温天体等离子体中磁流体动力学过程的理想对象。利用日、美、日HINODE卫星对这些磁对流过程的高分辨率偏振光谱观测，我们对半影区的能量输运机制有了新的认识。这些观测有能力导致对这些磁对流过程的新的理解，这对于理解太阳黑子的性质至关重要。