He-4 and Ne-22 in Individual High-Density Presolar Graphite Grains from the Murchison Meteorite

Details He-4 and Ne-22 in Individual High-Density Presolar Graphite Grains from the Murchison Meteorite He-4 and Ne-22 in Individual High-Density Presolar Graphite Grains from the Murchison Meteorite

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010lpi....41.1741m&link_type=abstract

41st Lunar and Planetary Science Conference, held March 1-5, 2010 in The Woodlands, Texas. LPI Contribution No. 1533, p.1741

Physics

Scientific paper

We have analyzed 18 presolar graphite grains from the Murchison KFC1
density fraction. We confirm the low fraction (~7%) of 22Ne-rich grains
found by Kehm et al. 1996 and report the first detection of 4He in a
graphite grain of this density fraction.

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