Radiation History of Giant Cluster Particle U2-20GCA, a Probable Cometary IDP
Physics and Astronomy
Spallation Ne in the giant U2-20GCA cluster IDP suggests exposure to radiation near the early Sun. Mineral chemistry links it to Comet Wild 2 coma grains.
R.O. Pepin, D.E. Brownlee, R.L. Palma, D. Joswiak, and D.J. Schlutter, 2015. Radiation History of Giant Cluster Particle U2-20GCA, a Probable Cometary IDP. 46th Lunar and Planetary Science Conference, Abstract #1705, Lunar and Planetary Institute, Houston.