太阳低层大气内小尺度活动——埃勒曼炸弹和微耀斑的物理特性和理论解释

发布时间：2018-02-09 09:42

本文关键词： 太阳物理小尺度活动微耀斑埃勒曼炸弹　出处：《天文学进展》2011年04期 　论文类型：期刊论文

【摘要】：随着观测的时间分辨率和空间分辨率的提高,近年来已发现和仔细研究了很多小尺度的太阳活动现象。它们的物理过程同复杂激烈的爆发现象有许多共同之处,因而可以为研究有复杂结构的激烈爆发现象(如耀斑和日冕物质抛射等)提供重要线索;同时,它们对太阳大气的加热可能有重要贡献,因而对理解太阳大气的加热机制有重要意义。太阳小尺度活动现象可以发生在太阳大气的不同高度,具有不同的物理特性。主要综述对太阳低层大气(光球和色球)中埃勒曼炸弹和微耀斑等小尺度活动现象的研究进展,包括它们的形态、大小、寿命、光谱、磁场和速度场、大气半经验模型和能量估计等,还介绍了已提出的各种模型和理论解释,特别是磁重联的模型。对今后的研究重点也进行了讨论。
[Abstract]:With the improvement of the temporal and spatial resolution of observations, many small-scale solar activity phenomena have been discovered and carefully studied in recent years. Their physical processes have much in common with complex and intense eruptions, This may provide important clues to the study of intense eruptions with complex structures (such as flares and coronal mass ejections, etc.), and they may contribute significantly to the heating of the sun's atmosphere. Therefore, it is important to understand the heating mechanism of the solar atmosphere. Small scale solar activity can occur at different altitudes of the solar atmosphere. This paper reviews the progress in the study of small scale phenomena such as Ehlermann bombs and micro-flares in the lower atmosphere of the sun (light sphere and color sphere), including their morphology, size, lifetime, spectrum, magnetic field and velocity field. The atmospheric semi-empirical model and energy estimation are also introduced. Various models and theoretical explanations, especially the model of magnetic reconnection, are introduced. The key points of future research are also discussed.
【作者单位】：南京大学天文系;南京大学教育部现代天文与天体物理重点实验室;
【基金】：国家自然科学基金(10878002,10610099,10933003,10673004) 973计划(2011CB811402)
【分类号】：P182.9

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