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

使用威尔逊山 150 英尺的太阳塔进行天气太阳速度和磁场观测

• 批准号: 8813491
• 负责人: Roger Ulrich
• 金额: $ 25.74万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-11-01 至 1990-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8813491&HistoricalAwards=false
• 关键词: Synoptic; Solar; Velocity; Magnetic; Field

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.

太阳常常被认为是流体静力学中的一颗星星 平衡，这意味着向内的重力是 到处都被向外的压力所平衡。 的 然而，流体静力平衡的假设只是一个 一阶近似，特别是在其表面层。 在那里，对流，太阳黑子周期，磁场，能量 爆发（例如，耀斑）揭示了一个相当动态的，循环的，因为 以及混乱的行为。 该提案的重点是继续 通过对太阳表面速度场的观测 以及过去21年来一直存在的磁场 年 主要研究者还将解释 这是目前困难和有争议的。 这项工作的贡献，其中没有 有争议的是，这是一个无价的太阳表面数据库， 这项已经酝酿了二十年的活动将延长。