Explaining the Variations in Isotopic Ratios in Meteoritic Amino AcidsOPEN ACCESS 

Michael A. Famiano, Richard N. Boyd, Toshitaka Kajino, Satoshi Chiba, Yirong Mo, Takashi Onaka, Toshi Suzuki

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“Measurements of the isotopic abundances in meteoritic amino acids have found enhancements of 2H/H, 15N/14N, and 13C/12C in the amino acids in the meteorites studied. We show that they are consistent with the processing of the constituents of the meteorites by electron anti-neutrinos that would be expected from a core-collapse supernova or neutron-star merger. Using theoretical electron anti-neutrino cross sections we are able to predict these isotopic ratio variations depending on the time-integrated anti-neutrino flux at the site where the amino acids were processed. “