Elemental abundances of major elements in the solar wind as measured in Genesis targets and implications on solar wind fractionation.

ABSTRACT: We present elemental abundance data of C, N, O, Na, Mg, Al, Ca, and Cr in Genesis silicon targets. For Na, Mg, Al, and Ca, data from three different SW regimes are also presented. Data were obtained by backside depth profiling using Secondary Ion Mass Spectrometry. The accuracy of these measurements exceeds those obtained by in-situ observations; therefore the Genesis data provide new insights into elemental fractionation between Sun and solar wind, including differences between solar wind regimes. We integrate previously published noble gas and hydrogen elemental abundances from Genesis targets, as well as preliminary values for K and Fe. The abundances of the solar wind elements measured display the well-known fractionation pattern that correlates with each elements' First Ionization Pot

SUBMITTER: Heber VS 

PROVIDER: S-EPMC8350966 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature