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Experimental Approach to Physicochemical Hydrogen Processes on Cosmic Ice Dust

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Title: Experimental Approach to Physicochemical Hydrogen Processes on Cosmic Ice Dust
Authors: Watanabe, Naoki Browse this author →KAKEN DB
Tsuge, Masashi Browse this author
Issue Date: 2020
Publisher: 日本物理学会
Journal Title: Journal of the Physical Society of Japan
Volume: 89
Issue: 5
Start Page: 051015
Publisher DOI: 10.7566/JPSJ.89.051015
Abstract: Hydrogen is the most abundant element in the universe, and thus atomic and molecular hydrogen play important roles in chemical evolution in space. In particular, the physicochemical processes of hydrogen on cosmic dust, such as the diffusion of H atoms and nuclear spin conversion of H2 molecules at low temperatures, are recognized to significantly influence the subsequent chemical evolution. However, it is not easy to track the hydrogen on the surface by conventional experiments. We have recently succeeded in applying a combination of photostimulated desorption and resonance-enhanced multiphoton ionization methods to detect hydrogen on cosmic dust analogues. In this paper, we present a brief review of our recent experiments for elucidating the behavior of hydrogen on water ice, pure solid carbon monoxide, and diamond-like carbon as cosmic dust analogue surfaces.
Rights: ©2020 The Physical Society of Japan
Type: article (author version)
Appears in Collections:低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 柘植 雅士

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