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2017 Fiscal Year Final Research Report

Spectroscopic studies for amino acid and its precursors

Research Project

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Project/Area Number 15K05027
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Astronomy
Research InstitutionToho University

Principal Investigator

OZEKI Hiroyuki  東邦大学, 理学部, 教授 (70260031)

Co-Investigator(Kenkyū-buntansha) 小林 かおり  富山大学, 大学院理工学研究部(理学), 教授 (80397166)
Research Collaborator BAILLEUX Stephane  
Project Period (FY) 2015-04-01 – 2018-03-31
Keywords星間アミノ酸 / ミリ波・サブミリ波分光 / 電波天文観測
Outline of Final Research Achievements

We have constructed a chemical reaction network toward synthesis of glycine, the simplest amino acid, in interstellar space by comprehensive investigation of previous researches, and have identified several key molecules for synthesizing glycine. To date, most of these species are impossible to explore by radio-astronomy due to lack of relevant spectroscopic information. In this study we tried to observe rotational spectra of Aminoacetonitrile, Hydantoin, and Aminomethanol in the millimeter-wave to sub-millimeter-wave frequency region, all of which can be regarded as direct precursors of glycine in the chemical network. Spectroscopic characterization for former two species in their vibrational ground and excited states has been successfully made, and their molecular constants are accurately determined. Line frequency catalogues for these molecules have been established for astronomical observation with whole ALMA observation bands.

Free Research Field

分子分光学

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Published: 2019-03-29  

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