Light noble gas composition of different solar wind regimes: results from genesis

Abstract

The Genesis mission provided samples of solar wind (SW) from different regions on the Sun. These SW regime samples are important in understanding fractionation processes upon formation and acceleration of the SW to ultimately deduce solar composition from SW values. We present He and Ne isotopic and elemental compositions of the bulk SW (SW of entire collection period) and the 3 major SW regimes: slow (from the ecliptic plane, emanating from above streamers), fast (emanating from coronal holes), and coronal mass ejections (CME). At the conference we will also present Ar data.