学术报告—Origin and Energization of Solar Eruptions

报告摘要：

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 most likely have an impact on the safety of high-tech human operations in space. To understand and predict the energetic events, we need to elucidate some fundamental but still puzzled questions, one of which concerns their origin and energization. I will present the discovery of pre-eruptive configurations causing solar eruptions, i.e., hot channels, and deliver a new understanding of how such pre-eruptive configurations evolve from the precursor slow-rise to final violent eruption. The second part of my talk will focus on observations and simulations of magnetic reconnection, which is believed to power the CME/flares, with a preference on its turbulent nature, aiming to understand the basic energy release pattern of magnetic reconnection and disclose the physical origins of various fine structures during flares.

报告人简介：

程鑫，南京大学天文与空间科学学院教授、副院长。2012年6月获南京大学天文学博士学位，2010年9月至2011年12月在美国乔治梅森大学联合培养，2019年2月至2022年7月德国马普太阳系研究所从事“洪堡高级访问学者“。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。曾获国家基金委优秀青年基金、江苏省杰出青年基金资助，美国地球物理学会“Basu Early Career Award”,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”,连续入选爱思唯尔中国高被引学者。