Published in

MDPI, Symmetry, 1(11), p. 23, 2018

DOI: 10.3390/sym11010023



Export citation

Search in Google Scholar

Astrophysical Sites that Can Produce Enantiomeric Amino Acids

Journal article published in 2018 by Michael Famiano, Richard Boyd, Toshitaka Kajino, Takashi Onaka ORCID, Yirong Mo
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Green circle
Postprint: archiving allowed
Green circle
Published version: archiving allowed
Data provided by SHERPA/RoMEO


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.

Beta version