Investigation of Small-scale Jets In and Near Sunspot Penumbrae: Early DKIST Science

对太阳黑子半影及其附近小型喷流的研究：早期 DKIST 科学

• 批准号: 2307505
• 负责人: Sanjiv Tiwari
• 金额: $ 47.32万
• 依托单位: Bay Area Environmental Research Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2307505&HistoricalAwards=false
• 关键词: Investigation; Small; scale; Jets; Near

This project from the Bay Area Environmental Research Institute (BAERI) and the University of Alabama, Huntsville seeks analyze observations of sunspots from National Science Foundation’s (NSF’s) Daniel K. Inouye Solar Telescope (DKIST). This highest ever-resolution data in different wavelengths offers a unique opportunity to explore dynamics of jets and dots in sunspots. Improving understanding of fine-scale dynamics in the strongest magnetic field regions on our nearest star, the Sun, has broad social impact. Large scale features such as coronal jets and coronal mass ejections, which are responsible for space weather. Small-scale features, such as those examined in this study, have some similarities to large scale structures, but also contribute to the complexity of the solar environment. The broader impacts of this project include training REU students, and high school interns, who will not only be introduced to solar physics research but can also get motivated to pursue a career in any science. The proposed work will also increase the partnership between three institutions, BAERI, University of Alabama, Huntsville, and the National Solar Observatory.Specifically, this project seeks to utilize data from Hinode’s Solar Optical Telescope, NASA’s Interface Region Imaging Spectrograph (IRIS), and DKIST in combination with MHD simulations of sunspot penubrae to (i) understand the mechanisms that generate jets and bright dots in and around sunspot penumbrae, (ii) investigate to what extent penumbral jets contribute to transition region and coronal heating, and (iii) investigate whether penumbral jets have mixed-polarity field at their base, and whether they spin, similar to X-ray jets.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

亨斯维尔（Huntsville）来自湾区环境研究所（Baeri）和阿拉巴马大学的该项目，寻求对国家科学基金会（NSF）（NSF）Daniel K. Inouye Solar Solar Telescope（DKIST）的日晒观察的分析。在不同波长中，这是有史以来最高的分辨率数据，为探索日落中的喷气机和点的动态提供了独特的机会。在我们最近的恒星The Sun上，对最强磁场区域中的优质动力学的理解有了广泛的社会影响。大规模的特征，例如冠状动脉和冠状质量弹出，这些特征负责太空天气。小规模的特征，例如本研究中检查的特征，与大规模结构具有一定的相似性，但也有助于太阳能环境的复杂性。该项目的更广泛影响包括培训REU学生和高中实习生，他们不仅将被介绍给太阳能物理学研究，而且还可以激励从事任何科学的职业。拟议的工作还将增加三个机构，贝耶里，阿拉巴马大学，亨茨维尔大学和国家太阳能观测站之间的伙伴关系。特别是，该项目试图利用Hinode的太阳能光学望远镜中的数据，NASA的NASA界面区域界面区域Imaging Spectrograph（IRIS）以及MHD SSPOT的机制（i sumspot tose ins inssspot），以及i sumspot toss insspot（i sumspot tocot tose）。 （ii）（ii）调查半突变射流在多大程度上有助于过渡区域和冠状供暖，（iii）研究半射流在其基础上是否具有混合极性领域，以及它们是否旋转，与X射线射击相似，这反映了NSF的Intortry Intortial tavional taviential contrunial taviential tavional with deem the teem the Interviential avery，审查标准。