SHINE: Observations and Analysis of Kinetic Dissipation Processes in the Solar Wind

SHINE：太阳风动能耗散过程的观测和分析

• 批准号: 1234046
• 负责人: John Podesta
• 金额: $ 20.01万
• 依托单位: SPACE SCIENCE INSTITUTE
• 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: 2012-06-01 至 2015-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1234046&HistoricalAwards=false
• 关键词: SHINE; Observations; Analysis; Kinetic; Dissipation

The Principal Investigator (PI) plans to investigate plasma turbulence in the solar wind, solar corona, and throughout the heliosphere by using spacecraft data and simulations. His research team will study turbulent dissipation processes in order to determine how propagating kinetic Alfven waves (KAWs) cause heating of solar wind protons. These results may also be relevant to the processes that heat the solar corona.The PI's team will use data from the Cluster spacecraft to study several important problems in plasma turbulence. These problems include the determination of the specific wavenumbers at which protons are heated by turbulence, the factors determining the form of the magnetic helicity spectrum in the kinetic regime, and whether stochastic heating by a particular KAW spectrum is a viable mechanism for the perpendicular heating of thermal protons in the solar wind. The PI will compare the predictions of theory and simulations for the form of the KAW spectrum in the vicinity of the spectral break and determine how these predictions compare with real solar wind observations.The PI's team will integrate their research with education by participating in the 'Los Alamos Earth and Space Science Academy' (LAESSA) outreach program, which provides training to New Mexico middle school science teachers. Scientific results will also be disseminated through publications in scientific journals and through presentations at community workshops and meetings.

首席研究员（PI）计划通过使用航天器数据和仿真来研究太阳风，太阳能电晕和整个地球层中的血浆湍流。他的研究团队将研究湍流的耗散过程，以确定传播动力学的Alfven波（KAW）如何引起太阳风质子的加热。这些结果也可能与加热太阳能电晕的过程有关。PI的团队将使用群集航天器的数据来研究血浆湍流中的几个重要问题。这些问题包括确定质子通过湍流加热质子的特定波数，这些因素确定了动力学状态中磁性螺旋光谱的形式，以及特定KAW光谱的随机加热是否是可行的机制太阳风中的热质子。 PI将比较频谱突破附近KAW光谱形式的理论和模拟的预测，并确定这些预测与实际太阳风观测的比较。PI的团队将通过参与'参与' Los Alamos Earth and Space Science Academy'（Laessa）外展计划，该计划为新墨西哥州中学科学老师提供培训。科学结果还将通过科学期刊的出版物以及社区研讨会和会议的演讲来传播。