Constraints on Neon and Argon Isotopic Fractionation in Solar Wind

@article{Meshik2007ConstraintsON,
  title={Constraints on Neon and Argon Isotopic Fractionation in Solar Wind},
  author={Alexander P. Meshik and Jennifer C. Mabry and Charles M. Hohenberg and Yves Marrocchi and Olga V. Pravdivtseva and Donald S. Burnett and Chad T. Olinger and Roger C. Wiens and Daniel B. Reisenfeld and Judith H. Allton and Karen M. McNamara and Eileen K. Stansbery and Amy J. G. Jurewicz},
  journal={Science},
  year={2007},
  volume={318},
  pages={433 - 435}
}
To evaluate the isotopic composition of the solar nebula from which the planets formed, the relation between isotopes measured in the solar wind and on the Sun's surface needs to be known. The Genesis Discovery mission returned independent samples of three types of solar wind produced by different solar processes that provide a check on possible isotopic variations, or fractionation, between the solar-wind and solar-surface material. At a high level of precision, we observed no significant… 
Isotopic Mass Fractionation of Solar Wind: Evidence from Fast and Slow Solar Wind Collected by the Genesis mission
NASA's Genesis space mission returned samples of solar wind collected over ~2.3 years. We present elemental and isotopic compositions of He, Ne, and Ar analyzed in diamond-like carbon targets from
The Genesis solar wind sample return mission: Past, present, and future
The Genesis Discovery mission returned solar matter in the form of the solar wind with the goal of obtaining precise solar isotopic abundances (for the first time) and greatly improved elemental
The future of Genesis science
TLDR
Considerable progress has been made toward understanding elemental fractionation during the extraction of the solar wind from the photosphere, a necessary step in determining true solar abundances from solar wind composition.
Elemental Abundances of Major Elements in the Solar Wind as Measured in Genesis Targets and Implications on Solar Wind Fractionation
TLDR
The Genesis data provide new insights into elemental fractionation between Sun and SW, including differences between SW regimes, and integrate previously published noble gas and hydrogen elemental abundances from Genesis targets, as well as preliminary values for K and Fe.
Similarities and differences between the solar wind light noble gas compositions determined on Apollo 15 SWC foils and on NASA Genesis targets
We compare the solar wind (SW) He, Ne, and Ar compositions collected during the Apollo Solar Wind Composition (SWC) experiments (1969–1972; Al- & Pt-foils) and the Genesis mission (2002–2004;
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 24 REFERENCES
He, Ne, and Ar from the solar wind and solar energetic particles in lunar ilmenites and pyroxenes
He, Ne, and Ar in ilmenite and pyroxene separates from two lunar regolith samples exposed to the solar corpuscular radiation at widely different epochs were analyzed by the closed system stepped
The helium isotopic ratio in the solar wind and ion fractionation in the corona by inefficient Coulomb drag
Using data obtained between 1991 and 1996 with the SWICS instrument (Solar Wind Ion Composition Spectrome- ter) aboard the Ulysses spacecraft, a long time average of the ( 4 He= 3 He) isotopic ratio
Isotopic Composition of H, HE and NE in the Protosolar Cloud
Observations and measurements in the solar wind, the Jovian atmosphere and the gases trapped in lunar surface material provide the main evidence from which the isotopic composition of H, He and Ne in
Solar Wind Neon from Genesis: Implications for the Lunar Noble Gas Record
TLDR
The results strongly indicate that no extra high-energy component is required and that the solar neon isotope composition of lunar samples can be explained as implantation-fractionated solar wind.
Origin of the solar wind from composition data
The ESA/NASA spacecraft Ulysses is making, for the first time, direct measurements in the solar wind originating from virtually all places where the corona expands. Since the initial two polar passes
The Genesis Discovery Mission: Return of Solar Matter to Earth
The Genesis Discovery mission will return samples of solar matter for analysis of isotopic and elemental compositions in terrestrial laboratories. This is accomplished by exposing ultra-pure
The Apollo SWC Experiment: Results, Conclusions, Consequences
The Apollo Solar Wind Composition (SWC) experiment was designed to measure elemental and isotopic abundances of the light noble gases in the solar wind, and to investigate time variations in the
...
1
2
3
...