项目名称: 日冕物质抛射在日冕和行星际空间中的偏转
项目编号: No.41274173
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 天文学、地球科学
项目作者: 申成龙
作者单位: 中国科学技术大学
项目金额: 80万元
中文摘要: 日冕物质抛射在日冕和行星际空间中的偏转会显著影响日冕物质抛射的对地有效性。本课题将根据多视点、宽视野、高精度(时间和空间)的观测数据,结合理论模型的发展、建立和应用,根据可能引起偏转的不同原因和偏转发生的不同区域,对日冕物质抛射在日冕和行星际空间中的偏转进行详细的分析和研究,并探讨引起偏转的物理机制以及偏转对日冕物质抛射对地有效性的影响。根据可能引起日冕物质抛射偏转的原因和偏转发生的区域,本课题将在以下几个方面进行研究:(1)由太阳风和背景磁场引起的偏转,包括在日冕中的偏转和行星际空间中的偏转;(2)由日冕物质抛射相互作用引起的偏转;(3)由源区磁场非对称结构引起的偏转。
中文关键词: 日冕物质抛射;数据库;偏转;相互作用;
英文摘要: The deflection of Coronal Mass Ejections (CMEs) would significant influence their geoeffectiveness. This project is proposed to study the deflection of CMEs in corona and interplanetary space. In this project, the deflection of CMEs, including the observational character, physical mechanism and infleunce on CMEs' geoeffectivenss, will be detail studied based on the analysis of multi-points, large field of view and high time, spatial resolution obervations and establishment of theoretical models. Considering the deflection of CMEs caused by different factors and happened at different regions, the deflection of CMEs will be studied from: (1) the deflection caused by the background magnetic field and solar wind, including the deflection in corona and the deflection in interplanetary space;(2) the deflection caused by the multiple CMEs' inetraction; (3) the deflction caused by the asymmetric distribution of the magnetic field topology of CMEs' source region. In addition, the influence of the deflection on CMEs' geoeffectivess will also be discussed.
英文关键词: coronal mass ejection;catalogue;deflection;interaction;