项目名称: 太阳活动的高分辨率观测与研究
项目编号: No.11333009
项目类型: 重点项目
立项/批准年度: 2014
项目学科: 天文学、地球科学
项目作者: 季海生
作者单位: 中国科学院紫金山天文台
项目金额: 335万元
中文摘要: 在过去的约20年间,国际太阳物理界已经在理解太阳活动方面取得了长足的进步。地面和空间的对太阳高时空谱分辨率的观测积累了大量的优质观测资料, 这些优质观测资料将不可避免地导致重要的观测发现和新的理论概念的产生,在太阳活动过程中的能量积累和触发这一未知物理过程方面取得突破性进展。本项目拟申请重点支持,凝聚研究力量,利用国际领先的观测设备的观测,主要是NST、NVST和SDO等,深入研究太阳活动尤其是小尺度活动过程中的时空谱的精细结构,在以下科学目标方面取得重要进展:1) 光球小尺度磁场活动及其对上层大气能量的贡献, 2) 光球小尺度磁场活动对暗条(磁绳)形成、震荡和爆发过程的影响, 3) 太阳大气中的局部能量分布的演化对整个活动区能量演化的影响, 4) 光球运动对磁场重联的触发作用。
中文关键词: 高分辨率;磁场精细结构;磁能演化;磁场重联;日冕加热
英文摘要: During the past twenty years, we have made a significant progress in understanding the physics of activities. Ground and space based high resolution observations has accumulated huge amount of high quality data. These data will unavoidably leads to important discoveries and new concept in solar physics. We cannot afford missing this historical moment. We are applying for a major support enabling me gathering my research group to study fine structures of solar activities, especially small scale solar magnetic activities based on observations made by world leading facilities like NST and SDO. We will make progress in following research topics: 1) small-scale magnetic photospheric activities and their roles in corona heating; 2) small-scale photospheric magnetic activities and their role in the formation and final eruption of filament(flux rope); 3) the evolution of local energy distribution and its impact on the evolution of whole active region; 4) triggering mechanisms of magnetic reconnection by motion of photosphere.
英文关键词: high-resolution;fine magnetic field ;magnetic energy evolution;magnetic reconnection;coronal heating