Solar Wind Abundances of C and O
2010
Quantitative understanding of solar wind (SW)
elemental fractionation is required to improve knowledge of the solar
nebula abundances from Genesis samples, in particular abundances of
volatile elements, depleted in CI chondrites. Ratios of elements with low
and high first ionization potential (FIP) in the solar wind, e.g., Fe/He, are
higher than photospheric abundances. C, O, and N have intermediate FIP
and are thus critical as to whether this fractionation is stepwise or
gradual as a function of FIP.
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