Measuring the Mass Flux and Magnetic Evolution of Jets in the Solar Atmosphere

测量太阳大气中喷流的质量通量和磁演化

• 批准号: 1159353
• 负责人: Peter Young
• 金额: $ 41.98万
• 依托单位: George Mason University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-03-01 至 2016-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1159353&HistoricalAwards=false
• 关键词: Measuring; Mass; Flux; Magnetic; Evolution

The proposing team will carry out a comprehensive study of the structure and evolution of coronal hole jets in order to discover the connections between the solar wind and magnetic structures at the solar surface. The team will use data from instruments on board the Hinode spacecraft to measure the parameters relevant to the magnetic evolution that leads to explosive events (EEs) and coronal hole jets (CHJs) on the Sun, as well as to measure the mass that is ejected from such events. Explosive events and coronal hole jets are particularly well suited to the spectroscopic analysis and magnetic field studies that this team will perform. The team specifically intends to study how the Sun's magnetic field evolution triggers EEs and CHJs, to determine how often EEs promote a measurable response in the solar chromosphere and/or corona, and to calculate the total mass flux of CHJs. This research will increase our understanding of the variable flow of mass and energy through the lower solar atmosphere. The comprehensive statistics for CHJs collected by this team will provide insight into the possible role of these jets in the mass and energy flux going into the corona and solar wind, and thus aid in the development of improved predictive space weather models that depend on coupling the lower solar atmosphere to the corona. The team will provide a database of all analyzed CHJ events to the public, so that the scientific results of this investigation can be further exploited by the general solar physics community. The co-investigator of this effort is a female scientist employed in industry, so this project will advance the participation of underrepresented groups in science while enhancing an ongoing academic-federal lab-industrial partnership.

提出建议的团队将对日冕洞喷流的结构和演化进行全面研究，以发现太阳风和太阳表面磁结构之间的联系。该团队将使用Hinode航天器上仪器的数据来测量与导致太阳爆炸事件(EES)和日冕洞喷流(CHJ)的磁场演化相关的参数，以及测量从这些事件中抛出的质量。爆炸事件和冕洞喷流特别适合于该小组将进行的光谱分析和磁场研究。该团队特别打算研究太阳磁场的演变如何触发EES和CHJ，确定EES在太阳色球和/或日冕中促进可测量的反应的频率，并计算CHJ的总质量通量。这项研究将增加我们对低太阳大气中质量和能量的可变流动的理解。该团队收集的CHJ的综合统计数据将深入了解这些喷流在进入日冕和太阳风的质量和能量流动中可能扮演的角色，从而有助于开发依赖于将较低的太阳大气与日冕耦合起来的改进的预测空间天气模型。该团队将向公众提供一个所有分析的CHJ事件的数据库，以便普通太阳物理界进一步利用这项调查的科学成果。这项工作的联合调查者是一名受雇于工业的女性科学家，因此该项目将促进未被充分代表的群体参与科学，同时加强正在进行的学术-联邦实验室-工业伙伴关系。