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Symmetry 2019, 11(1), 23; https://doi.org/10.3390/sym11010023

Astrophysical Sites that Can Produce Enantiomeric Amino Acids

1
Department of Physics, Western Michigan University, Kalamazoo, MI 49008, USA
2
National Astronomical Observatory of Japan, Division of Science, Mitaka, Tokyo 181-8588, Japan
3
Department of Physics, Department of Astronomy, The Ohio State University, Columbus, OH 43210, USA
4
Department of Physics, Graduate School of Science, University of Tokyo, Tokyo 113-8654, Japan
5
School of Physics, Beihang University, Beijing 100083, China
6
Department of Astronomy, Graduate School of Science, University of Tokyo, Tokyo 113-8654, Japan
7
Department of Chemistry, Western Michigan University, Kalamazoo, MI 49008, USA
*
Author to whom correspondence should be addressed.
Received: 28 November 2018 / Revised: 21 December 2018 / Accepted: 23 December 2018 / Published: 28 December 2018
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Abstract

Recent work has produced theoretical evidence for two sites, colliding neutron stars and neutron-star–Wolf–Rayet binary systems, which might produce amino acids with the left-handed chirality preference found in meteorites. The Supernova Neutrino Amino Acid Processing (SNAAP) model uses electron antineutrinos and the magnetic field from source objects such as neutron stars to preferentially destroy one enantiomer over another. Large enantiomeric excesses are predicted for isovaline and alanine; although based on an earlier study, similar results are expected for the others. Isotopic abundances of 13 C and 15 O in meteorites provide a new test of the SNAAP model. This presents implications for the origins of life. View Full-Text
Keywords: origin of life; amino acid handedness; nucleus–molecular coupling; chirality origin of life; amino acid handedness; nucleus–molecular coupling; chirality
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Famiano, M.; Boyd, R.; Kajino, T.; Onaka, T.; Mo, Y. Astrophysical Sites that Can Produce Enantiomeric Amino Acids. Symmetry 2019, 11, 23.

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