The Physics of Flux Emergence on the Sun

太阳上通量出现的物理学

• 批准号: 9218085
• 负责人: George Fisher
• 金额: $ 16.35万
• 依托单位: University of California-Berkeley
• 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: 1993-03-01 至 1997-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9218085&HistoricalAwards=false
• 关键词: Physics; Flux; Emergence; Sun

The origin of the magnetic fields on the Sun and other cool stars remains an important but poorly understood phenomenon in astrophysics. Since magnetic activity has been shown to change the sun's luminosity and ultraviolet flux, it may have significant effects on the terrestrial environment. The PI has developed a numerical method of studying the emergence of magnetic flux tubes from their supposed place of origin at the base of the convective zone to the surface of the Sun. He will now explore the effects of varying the magnetic field, the total flux and the initial location of the flux. Differential rotation and radiative diffusion will be studied. Flux emergence on other cool stars will be explored.

太阳和其他冷恒星磁场的起源 仍然是一个重要但知之甚少的现象， 天体物理学 由于磁活动已被证明可以改变 太阳的光度和紫外线通量，它可能有显着的 对陆地环境的影响。 PI开发了一个 研究磁通管出现的数值方法 从他们假定的起源地对流的底部 到太阳表面。 他现在将探讨 改变磁场、总通量和初始位置 的通量。 差分旋转和辐射扩散将是 研究了 将探索其他冷恒星上的通量出现。