论文标题

解释陨石氨基酸的同位素比的变化

Explaining the Variations in Isotopic Ratios in Meteoritic Amino Acids

论文作者

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

论文摘要

陨石氨基酸中同位素丰度的测量发现$^2 $ h/h,$^{15} $ n/$ n/$^{14} $ n和$^{13} $ c/$ c/$^{12} $ c在氨基酸中的氨基酸中的氨基酸中。我们表明,它们与电子抗中性替代诺斯对陨石的组成部分的处理是一致的,这将从核心偏离的超新星或中子星合并中得到预期。使用理论电子抗中性横截面,我们能够根据处理氨基酸处理的位点的时间融合的抗中神经通量来预测这些同位素比的变化。

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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