The Physics of Flux Emergence on the Sun

太阳和其他冷恒星上磁场的起源仍然是天体物理学中一个重要但知之甚少的现象。由于磁活动已经被证明可以改变太阳的光度和紫外线通量，它可能会对地球环境产生重大影响。PI已经发展了一种数值方法来研究从对流带底部的假定起源地到太阳表面的磁通量管的出现。他现在将探索改变磁场、总磁通和磁通的初始位置的影响。我们将研究差动旋转和辐射扩散。我们还将探索在其他冷星上出现的流星。

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.