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| 1 | Research progress based on observations of the New Vacuum Solar Telescope显示文摘The purpose of this paper is to introduce the main scientific results made by the one-meter New Vacuum Solar Telescope(NVST),which was put into commission on 2010. NVST is one of the large aperture solar telescopes in the world, located on the shore of Fuxian lake of Yunnan province in China, aiming at serving solar physicists by providing them with high resolution photospheric and chromospheric observational data. Based on the data from NVST and complementary observations from space(e.g.,Hinode, SDO and IRIS, etc), dozens of scientific papers have been published with a wide range of topics concentrating mainly on dynamics and activities of fine-scale magnetic structures and their roles in the eruptions of active-region filaments and flares.The achievements include dynamic characteristics of photospheric bright points, umbral dots, penumbral waves, and sunspot/light bridge oscillation, observational evidence of small-scale magnetic reconnection, and fine-scale dynamic structure of prominences.All these new results will shed light on the better understanding of solar eruptive activities. Data release, observation proposals,and future research subjects are introduced and discussed. | YAN XiaoLi LIU Zhong ZHANG Jun XU Zhi | 2020 | Science China(Technological Sciences)2020，63，9： | 2 |
| 2 | 中国太阳物理学研究进展显示文摘太阳物理学聚焦于距离我们最近,也是对我们最重要的恒星,处于天文学、行星科学、空间科学、等离子体物理学等学科的前沿交叉领域.很多基本科学问题的解决--宇宙天体磁场的起源、恒星磁活动周的演化规律和形成机制、恒星磁活动如何影响宜居环境和生命起源、如何预报太阳爆发活动以防止其对人类造成灾害性影响--都将得益于太阳物理学的突破性进展.近10年来,太阳物理学进入了多信使、全波段、全时域、高分辨、多尺度、多视角和高精度探测的时代,而最新发射的帕克太阳探针和即将发射的太阳轨道飞行器,将开启空间太阳探测的新纪元.我国首颗太阳探测卫星--先进天基太阳天文台将于2021年发射.在这重大变革的前夜,我们回顾和梳理了近10年来我国太阳物理学者在认知太阳磁场性质、低层大气精细结构和动力学,以及太阳爆发活动形成机理等方面的突出进步,并展望中国太阳物理学的发展和中国学者未来可能做出的贡献. | 刘睿 陈耀 邓元勇 丁明德 季海生 林隽 田晖 汪毓明 汪景琇 | 2019 | 科学通报2019，64，19： | 2 |
| 3 | GECAM太阳耀斑高能辐射监测和研究显示文摘引力波暴高能电磁对应体全天监测器(Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor,GECAM)双星项目是我国研发的高能天体活动监测系统,预计在2020年底发射,主要观测目标是引力波事件电磁对应体和伽马暴等深空天体爆发中的高能辐射.日地空间的高能事件也是GECAM的重要科学目标之一.其双星轨道共轭布局和单星配置25个广视角伽马射线探测器(6 ke V-5 MeV)的特性使得GECAM可以几乎全天区、全时段进行监测.这也使其成为理想的太阳耀斑(Solar Flares)爆发观测仪器,包括太阳X射线暴和伽马射线暴.本文首先介绍了耀斑高能辐射研究的背景和现状,包括太阳高能物理的主要科学问题、耀斑高能辐射的一般特征以及太阳X射线暴和伽马射线暴的研究情况,着重讨论了光变和能谱的分析,并展望了GECAM数据在太阳物理中的重要研究前景. | 苏杨 陈维 熊少林 朱玥 彭文溪 李友平 甘为群 | 2020 | 中国科学:物理学、力学、天文学2020，50，12： | 1 |
| 4 | Evolution of the Toroidal Flux of CME Flux Ropes during Eruption显示文摘Coronal mass ejections(CMEs)are large-scale explosions of the coronal magnetic field.It is believed that magnetic reconnection significantly builds up the core structure of CMEs,a magnetic flux rope,during the eruption.However,the quantitative evolution of the flux rope,particularly its toroidal flux,is still unclear.In this paper,we study the evolution of the toroidal flux of the CME flux rope for four events.The toroidal flux is estimated as the magnetic flux in the footpoint region of the flux rope,which is identified by a method that simultaneously takes the coronal dimming and the hook of the flare ribbon into account.We find that the toroidal flux of the CME flux rope for all four events shows a two-phase evolution:a rapid increasing phase followed by a decreasing phase.We further compare the evolution of the toroidal flux with that of the Geostationary Operational Environmental Satellites soft X-ray flux and find that they are basically synchronous in time,except that the peak of the former is somewhat delayed.The results suggest that the toroidal flux of the CME flux rope may be first quickly built up by the reconnection mainly taking place in the sheared overlying field and then reduced by the reconnection among the twisted field lines within the flux rope,as enlightened by a recent 3D magnetohydrodynamic simulation of CMEs. | Chen Xing Xin Cheng Mingde Ding | 2020 | The Innovation2020，1，3： | 1 |
| 5 | Characteristics and applications of interplanetary coronal mass ejection composition显示文摘In situ measurements of interplanetary coronal mass ejection(ICME)composition,including elemental abundances and charge states of heavy ions,open a new avenue to study coronal mass ejections(CMEs)besides remote-sensing observations.The ratios between different elemental abundances can diagnose the plasma origin of CMEs(e.g.,from the corona or chromosphere/photosphere)due to the first ionization potential(FIP)effect,which means elements with different FIPs get fractionated between the photosphere and corona.The ratios between different charge states of a specific element can provide the electron temperature of CMEs in the corona due to the freeze-in effect,which can be used to investigate their eruption process.In this review,we first give an overview of the ICME composition and then demonstrate their applications in investigating some important subjects related to CMEs,such as the origin of filament plasma and the eruption process of magnetic flux ropes.Finally,we point out several important questions that should be addressed further for better utilizing the ICME composition to study CMEs. | SONG HongQiang YAO Shuo | 2020 | Science China(Technological Sciences)2020，63，11： | 0 |
| 6 | 2011年8月4日螺旋状日冕物质抛射爆发事件显示文摘利用多卫星多波段的综合观测数据,通过追踪光球表面等离子体速度分析计算了耀斑爆发前后磁螺度的变化,发现耀斑爆发前活动区中光球表面存在强的水平剪切运动,活动区磁螺度的注入主要由这种剪切运动所产生;使用CESE-MHD-NLFFF重建了耀斑爆发前后活动区的磁场位形,推测出耀斑过程中存在磁绳结构的抛射.基于这些分析,给出了这一螺旋状抛射结构的形成机制:爆发前暗条西侧足点的持续剪切运动驱动磁通量绳增加扭转,高度扭缠的通量绳与东侧足点附近的开放磁力线重联并与东侧足点断开,进而向外抛出并伴随解螺旋运动.另外,利用1AU处WIND卫星的观测数据在对应的行星际日冕物质抛射中找到典型磁云的观测特征.这表明除了传统上双足点均在太阳表面的磁云模型,这种单足点固定于太阳表面的磁通量绳爆发图景同样可能在行星系际空间形成磁云结构.研究结果对进一步认识磁云结构具有重要意义. | 叶煜东 | 2019 | 空间科学学报2019，39，5： | 0 |
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