GECAM太阳耀斑高能辐射监测和研究  

Monitoring and research of high-energy solar flare emissions with GECAM

作　　者：苏杨 陈维 熊少林[2] 朱玥[2] 彭文溪[2] 李友平[1] 甘为群[1] SU Yang;CHEN Wei;XIONG ShaoLin;ZHU Yue;PENG WenXi;LI YouPing;GAN WeiQun(Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210023,China;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院紫金山天文台,南京210023 [2]中国科学院高能物理研究所,北京100049

出　　处：《中国科学：物理学、力学、天文学》2020年第12期45-57,共13页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家自然科学基金天文联合重点项目(编号:U1631242)、国家自然科学基金重点国际合作研究项目(编号:11820101002);中国科学院战略性先导科技专项(编号:XDA15052700)资助。

摘　　要：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.The dual-satellite GECAM(Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor) project was developed by China for monitoring high-energy astrophysical phenomena. The expected launch date of GECAM is the end of 2020. The main scientific objectives are to observe high-energy emissions from gravitational wave events, gamma-ray bursts, and other explosive energy releases in deep space. Among the most important objectives is monitoring the highenergy events in the solar-terrestrial system. GECAM has a conjugated dual-satellite configuration, with 25 wide-angle gamma-ray detectors(6 ke V-5 Me V) installed on each platform. With this configuration, GECAM can perform nearly allsky and full-time observations, and is ideally suited to the monitoring of X-ray and gamma-ray bursts in solar flares. This paper first introduces the background and current status of research on high-energy flare emissions, including the major scientific questions in high-energy solar physics, general features of high-energy flare emissions, as well as research on solar X-ray bursts and Gamma-ray bursts. We focus on analysis of light curves and spectra, and also discuss the important research prospects of GECAM solar data in solar physics.

关 键 词：太阳 太阳耀斑 太阳X射线暴 太阳伽马射线暴 空间天气 

分 类 号：P182.52[天文地球—天文学]