WEKO3
アイテム
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HCN formation by the chemical interaction between high-speed impact fragments and a planetary atmosphere
https://jaxa.repo.nii.ac.jp/records/20514
https://jaxa.repo.nii.ac.jp/records/205143a787971-f114-4097-9696-5de7b2a33268
Item type | 会議発表論文 / Conference Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | HCN formation by the chemical interaction between high-speed impact fragments and a planetary atmosphere | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 超高速衝突 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 衝突破片 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 惑星大気 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | シアン化水素 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 有機化合物 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 炭素質隕石 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 黒鉛 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 高温 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 生命科学 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | hypervelocity impact | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | impact fragment | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | planetary atmosphere | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | hydrogen cyanide | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | organic compound | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | carbonaceous meteorite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | graphite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | high temperature | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | life science | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
黒澤, 耕介
× 黒澤, 耕介× 石橋, 高× 杉田, 精司× 門野, 敏彦× 大野, 宗祐× 松井, 孝典× Kurosawa, Kosuke× Ishibashi, Ko× Sugita, Seiji× Kadono, Toshihiko× Ono, Sosuke× Matsui, Takafumi |
|||||
著者所属 | ||||||
東京大学 大学院新領域創成科学研究科 | ||||||
著者所属 | ||||||
東京大学 大学院理学系研究科 | ||||||
著者所属 | ||||||
東京大学 大学院新領域創成科学研究科 | ||||||
著者所属 | ||||||
海洋研究開発機構 地球深部探査センター | ||||||
著者所属 | ||||||
岡山大学 地球物質科学研究センター | ||||||
著者所属 | ||||||
東京大学 大学院新領域創成科学研究科 | ||||||
著者所属(英) | ||||||
en | ||||||
University of Tokyo Graduate School of Frontier Sciences | ||||||
著者所属(英) | ||||||
en | ||||||
University of Tokyo Graduate School of Science | ||||||
著者所属(英) | ||||||
en | ||||||
University of Tokyo Graduate School of Frontier Sciences | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Agency for Marine-Earth Science and Technology Center for Deep Earth Exploration | ||||||
著者所属(英) | ||||||
en | ||||||
Okayama University Institute for Study of the Earth's Interior | ||||||
著者所属(英) | ||||||
en | ||||||
University of Tokyo Graduate School of Frontier Sciences | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構宇宙科学研究本部 | |||||
出版者(英) | ||||||
出版者 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS) | |||||
書誌情報 |
第39回月・惑星シンポジウム en : Proceedings of the 39th ISAS Lunar and Planetary Symposium p. 202-205, 発行日 2006-08-07 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Hydrogen Cyanide (HCN) is considered as one of most important compounds for the origin of life because it is a precursor of complex organic molecules, such as amino acids and nucleic acid bases. Although a number of different mechanisms of HCN formation on the early Earth have been studied, HCN formation due to large impacts is particular important because it produces a large amount of HCN in a short period of time. We focus on the chemical interaction between impact-induced vapor clouds and a planetary atmosphere. Impact experiments by Sugita & Schultz (2000) show that a large amount of CN radicals may be produced by carbon-rich meteoritic material within a nitrogen-rich atmosphere. The produced CN radicals may react with water vapor in an ambient atmosphere and generate HCN. However, high-temperature CN may also destroy to CO and NO via chemical reactions with the ambient atmosphere. In this study, we conduct laser ablation experiments using a Gas Chromatograph Mass Spectrometer (GCMS) to examine whether impact-generated CN radicals lead to HCN formation. Graphite targets and gas mixtures of nitrogen and water vapor were used in our experiments. We found a strong correlation between the yield of HCN and the chemical composition of the model atmosphere. Although little HCN was detected in N2 atmospheres, a large amount of HCN was detected in a N2-H2O atmosphere. This result strongly suggests that impact-generated CN radicals may lead to HCN formation. | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0063505052 |