Synthesis of Amino Acid Precursors with Organic Solids in Planetesimals with Liquid WaterAmino acids are important ingredients of life that would have been delivered to Earth by extraterrestrial sources, e.g., comets and meteorites. Amino acids are found in aqueously altered carbonaceous chondrites in good part in the form of precursors that release amino acids after acid hydrolysis. Meanwhile, most of the organic carbon (greater than 70 weight %) in carbonaceous chondrites exists in the form of solvent insoluble organic matter (IOM) with complex macromolecular structures. Complex macromolecular organic matter can be produced by either photolysis of interstellar ices or aqueous chemistry in planetesimals. We focused on the synthesis of amino acids during aqueous alteration, and demonstrated one-pot synthesis of a complex suite of amino acids simultaneously with IOM via hydrothermal experiments simulating the aqueous processing
Document ID
20170003945
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Kebukawa, Y (Yokohama National Univ. Japan)
Misawa, S. (Yokohama National Univ. Japan)
Matsukuma, J. (Yokohama National Univ. Japan)
Chan, Q. H. S. (Open Univ. United Kingdom)
Kobayashi, J. (Yokohama National Univ. Japan)
Tachibana, S. (Hokkaido Univ. Sapporo, Japan)
Zolensky, M. E. (NASA Johnson Space Center Houston, TX, United States)