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.
@article{arxiv.2005.05540,
title = {Explaining the Variations in Isotopic Ratios in Meteoritic Amino Acids},
author = {Michael A. Famiano and Richard N. Boyd and Toshitaka Kajino and Satoshi Chiba and Yirong Mo and Takashi Onaka and Toshi Suzuki},
journal= {arXiv preprint arXiv:2005.05540},
year = {2020}
}