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arXiv · 2005.05540

Explaining the Variations in Isotopic Ratios in Meteoritic Amino Acids

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

Measurements of the isotopic abundances in meteoritic amino acids have found enhancements of $^2$H/H, $^{15}$N/$^{14}$N, and $^{13}$C/$^{12}$C 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.

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Michael A. Famiano, Richard N. Boyd, Toshitaka Kajino, Satoshi Chiba, Yirong Mo, Takashi Onaka, Toshi Suzuki. 2020-05-12. Explaining the Variations in Isotopic Ratios in Meteoritic Amino Acids. https://doi.org/10.1089/ast.2019.2186

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