Alfven Waves in the Solar Atmosphere

首席调查员(PI)将调查Alfvén波在加热太阳色球和日冕以及在这些层中激发大气振荡方面所起的作用。为此，他将对太阳色球和日冕中阿尔芬波的产生、传播和消散进行全面的研究。PI将使用数值代码来模拟具有多维磁场几何结构的太阳大气中的线性和非线性Alfvén波和类Alfvén波(具体地说，太阳磁通量管中的横波和扭转波)。PI将根据现有的观测数据对这些结果进行测试，并将为解释高级技术太阳望远镜(ATST)未来的观测结果和欧洲格雷戈尔望远镜目前的观测结果奠定理论基础。国际和平研究所希望通过这次调查，确定太阳大气的主要能量来源，以及创造日光层的基本物理过程。这些研究成果将通过国际和平研究所的项目网站、期刊出版物和主要科学会议的特别会议广泛传播。PI将通过直接让本科生和博士生参与这一项目，并将这项研究纳入现有的天体物理和太阳物理研究生和本科生课程，来加强研究生和本科教育。PI将为德克萨斯大学阿灵顿分校校园内的一个新天文馆制作展示，展示这一努力的科学成果，接触到每年参观校园天文馆的数千名K-12学生和大型公共团体。此外，项目网站上将提供国际和平协会的所有计算机代码、演示和预印本，供其他感兴趣的研究人员和教育工作者下载。

The Principal Investigator (PI) will investigate the role played by Alfvén waves in heating the solar chromosphere and corona, as well as in excitation of atmospheric oscillations in these layers. To this end, he will pursue a comprehensive study of the generation, propagation, and dissipation of Alfvén waves in the solar chromosphere and corona. The PI will use numerical codes to simulate linear and nonlinear Alfvén and Alfvén-like waves in the solar atmosphere (specifically, transverse and torsional waves within solar magnetic flux tubes) with multidimensional magnetic field geometries. The PI will test these results against available observational data and will develop a theoretical basis for interpretation of the future observations expected from the Advanced Technology Solar Telescope (ATST) and the current observations from the European GREGOR telescope. Through this investigation, the PI hopes to identify the principal energy sources of the solar atmosphere and the basic physical processes responsible for creating the heliosphere. These research results will be widely disseminated through the PI's project website, journal publications, and special sessions at major science conferences. The PI will enhance graduate and undergraduate education by directly involving undergraduate and PhD graduate students in this project, and by incorporating this research into existing graduate and undergraduate courses in astrophysics and solar physics. The PI will create demonstrations featuring science results from this effort for a new planetarium located on the campus of the University of Texas at Arlington, reaching out to thousands of K-12 students and large public groups who visit the campus planetarium each year. In addition, all of the PI's computer codes, demonstrations, and preprints will be made available at the project website for other interested researchers and educators to download.