Synoptic Solar Velocity and Magnetic Field Observations Using the 150-Foot Solar Tower on Mount Wilson

太阳经常被认为是一颗处于流体静力平衡的恒星，这意味着向内的重力在任何地方都被向外的压力所平衡。然而，流体静力平衡的假设只是一个一级近似，特别是在其表层。在那里，对流、太阳黑子周期、磁场、能量爆发(如耀斑)显示出相当动态的、周期性的以及混沌的行为。这项提议的重点是继续观测过去21年来一直在进行的太阳表面全球速度场和磁场。首席调查员还将对观察到的情况进行解释，这在目前是困难和有争议的。这项工作的贡献是，一个已经酝酿了20年的太阳表面活动无价数据库将被延长。这项工作没有争议。

The sun is frequently thought of as a star in hydrostatic equilibrium, which means that the inward force of gravity is balanced everywhere by the outward force of pressure. The assumption of hydrostatic equilibrium is, however, just a first-order approximation, particularly in its surface layers. There, convection, sunspots cycles, magnetic fields, energetic outbursts (e.g., flares) reveal a rather dynamic, cyclic, as well as chaotic behavior. This proposal focuses on continuing with observations of the sun's global surface velocity fields and magnetic fields that have been in progress for the past 21 years. The principal investigator will also interpret the observations, which is difficult and controversial at present. The contribution of this work, about which there is no controversy, is that a priceless data base of solar surface activity, already two decades in the making, will be extended.