创源大讲堂 格物致理讲坛 第92期
Origin and Energization of Solar Explosions
学术主持：李海堂讲师
时间：2025年6月23日（周一） 15:00-16:00
地点：犀浦校区三教X30345会议室
主讲人：程鑫教授
程鑫，南京大学天文与空间科学学院教授，博导，副院长。2012年获南京大学天文学博士学位。曾在美国乔治梅森大学联合培养，在德国马普太阳系研究所从事洪堡高级学者研究。其主要研究方向为日冕物质抛射、磁场重联、太阳射电暴、恒星磁活动等。曾荣获美国地球物理学会“Basu Award”奖，中国天文学会“黄授书”奖，亚太等离子体物理学会“青年科学家”奖，连续多年入选爱思唯尔中国高被引学者。
报告内容简介：
The most powerful explosive phenomena that occur in the solar atmosphere and then propagate into interplanetary space are solar flares and coronal mass ejections (CMEs), which can give rise to severe impacts on the safety of high-tech human operations in space. To understand and predict these plasma explosions, we need to elucidate some fundamental but still puzzling questions, one of which concerns their origin and energization. I will present the discovery of pre-eruptive hot plasma channels causing solar eruptions and deliver a new MHD model to show how such pre-eruptive structures evolve toward the final eruption. I will also present new observations and simulations of 3D magnetic reconnection during the explosions to understand the underlying energy release mechanism.
