A Seismic Investigation of Solar Active Regions

布劳恩，道格拉斯95-28249 Braun博士的项目结合了观测和理论，以确定和解释太阳活动区的声散射和吸收特性。 这些测量包括一个数据库，其中包括1990年和1994年在地理南极和基特峰进行的最近高质量太阳观测。 要确定的是完整的声学散射性能的各种各样的活性区域具有不同的表面形态，并在其演变的不同阶段。 理论上的努力将是模拟声散射的太阳黑子通量管，改进PI的目前的模型与更现实的治疗磁场的影响，在太阳黑子散射。 最后，使用理论建模和观测，完全淹没的不均匀性所产生的散射签名将进行探讨。 ***

Braun, Douglas 95-28249 Dr. Braun's project is a combination of both observation and theory to determine and interpret the characteristics of acoustic scattering and absorption by solar active regions. The measurements include a database consisting of recent high quality solar observations carried out at the geographic South Pole in 1990 and 1994 and on Kitt Peak. To be determined are the complete acoustic scattering properties for a wide variety of active regions with different surface morphology and at different stages of their evolution. The theoretical effort will be to model acoustic scattering by sunspot flux tubes, improving on the PI's present model with a more realistic treatment of the effects of the magnetic fields in the sunspot scatterer. Finally, using both theoretical modeling and observations, the scattering signatures produced by completely submerged inhomogeneities will be explored. ***