Three-Dimensional Modeling of Magnetic Field Configuration and Structure Based on Solar Vector Magnetograph, UV and X-Ray Data

基于太阳矢量磁力仪、紫外和 X 射线数据的磁场配置和结构的三维建模

• 批准号: 9215673
• 负责人: Shi Wu
• 金额: $ 13.83万
• 依托单位: University of Alabama in Huntsville
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-04-01 至 1996-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9215673&HistoricalAwards=false
• 关键词: Three; Dimensional; Modeling; Magnetic; Field

This project will use a recently developed Non-Linear Fore- Free (NLFF) model (Wu et tal. 1990) to study the magnetic configuration and structure of sunspots and active regions. The PI will use magnetogram observations obtained with the MSFC vector magnetograph (photosphere) together with correlated observations in UV and X-rays (transition region and corona) from SMM. Supporting observations in H> and in radio wavelength also will be used. The main objectives are: (i) to derive the three-dimensional magnetic field configuration and physical structure in well-observed sunspots and active regions, based on multi-level observations using the NLFF model. (ii) to compare the calculated magnetic field configurations, i.e. 3-D current system and loop structures with those observed in UV and X-rays in order to identify local regions of high current density and field gradient in various atmospheric levels that are associated with flare energy build up and release processes. By comparing the model calculations with observations, the project will test the capability and accuracy of the newly developed NLFF model, and (iii) further develop regularization technique for NLFF calculations. #

该项目将使用最近开发的非线性前- 自由（NLFF）模型（Wu et al.（1990）研究磁 太阳黑子和活动区的形状和结构。的PI 将使用由MSFC矢量获得的磁图观测结果 磁仪（光球）连同相关观测， 来自SMM的UV和X射线（过渡区和日冕）。支持 也将使用H>和无线电波长的观测。的 主要目标是：（一）推导三维磁 观测良好的 太阳黑子和活动区，根据多层次观测 使用NLFF模型。(ii)将计算出的磁场 配置，即三维电流系统和回路结构， 在紫外线和X射线中观察到的那些，以识别局部区域 高电流密度和场梯度在各种大气 与耀斑能量积累和释放有关的水平 流程.通过将模型计算结果与观测结果进行比较， 该项目将测试新的能力和准确性 开发的NLFF模型，以及（iii）进一步开发正则化 NLFF计算技术。 #