The Geometrical Structure and Physics of Coronal Mass Ejections

太阳扰动对日冕产生重大影响， 太阳风，行星际介质，地球沿着 它的磁层 新技术已经开发出来， 研究日球层内部的等离子体扰动 这 格兰特将继续研究这些物质的物理特性， 干扰，使用HELIOS黄道光数据 光度计和其他各种日冕仪器。 这些 黄道光光度计（1974年至1986年数据范围） 提供关于日光层的第一立体信息 这些干扰的形状。 基础研究工作包括 建模技术来解释和匹配观测到的 数据 HELIOS成像结合其他观测 提供了一个独特的机会来确定日冕物质抛射 速度，拖缆材料速度，三维 结构和行星际介质的总质量。 这 可以用更少的假设和更高的准确性来完成 比以往任何时候都多。 除了质量喷射，太阳能 到达行星际介质的扰动还包括 日冕流光，现场测量的冲击和同向旋转 界面区域。 可以看到这些特征 太阳神号上的黄道光光度计 航天器和这项研究将涉及近地表太阳能 结构和日光层电流片。

Solar disturbances produce major effects on the corona, the solar wind, the interplanetary medium, and the Earth along with its magnetosphere. New techniques have been developed for studying plasma disturbances in the inner heliosphere. This grant will continue an investigation of the physics of these disturbances, using data from the HELIOS zodiacal-light photometers and a variety of other coronal instruments. These zodiacal-light photometers (data coverage from 1974 to 1986) provide the first stereoscopic information about the heliospheric shapes of these disturbances. The basic research effort includes modeling techniques to interpret and match the observational data. The HELIOS imaging combined with other observations provides a unique opportunity to determine coronal mass-ejection velocities, streamer material velocities, 3-dimensional structures, and total masses in the interplanetary medium. This can be done with fewer assumptions and to greater accuracies than heretofore possible. Beside mass ejections, solar disturbances which reach the interplanetary medium also include coronal streamers, shocks measured in situ and co-rotating interface regions. It has been possible to view these features with the zodiacal-light photometers on board the HELIOS spacecraft and this study will relate near-surface solar structures and the heliospheric current sheet.