{"created":"2023-06-20T14:52:22.360720+00:00","id":20514,"links":{},"metadata":{"_buckets":{"deposit":"03b6eb51-6e5d-4e6a-83e9-023ec45a3890"},"_deposit":{"created_by":1,"id":"20514","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"20514"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00020514","sets":["1543:1778:1790","1887:1891"]},"author_link":["195903","195897","195906","195908","195901","195902","195900","195907","195898","195904","195905","195899"],"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-08-07","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"205","bibliographicPageStart":"202","bibliographic_titles":[{"bibliographic_title":"第39回月・惑星シンポジウム"},{"bibliographic_title":"Proceedings of the 39th ISAS Lunar and Planetary Symposium","bibliographic_titleLang":"en"}]}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"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.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0063505052","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構宇宙科学研究本部"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学 大学院新領域創成科学研究科"},{"subitem_text_value":"東京大学 大学院理学系研究科"},{"subitem_text_value":"東京大学 大学院新領域創成科学研究科"},{"subitem_text_value":"海洋研究開発機構 地球深部探査センター"},{"subitem_text_value":"岡山大学 地球物質科学研究センター"},{"subitem_text_value":"東京大学 大学院新領域創成科学研究科"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"University of Tokyo Graduate School of Frontier Sciences"},{"subitem_text_language":"en","subitem_text_value":"University of Tokyo Graduate School of Science"},{"subitem_text_language":"en","subitem_text_value":"University of Tokyo Graduate School of Frontier Sciences"},{"subitem_text_language":"en","subitem_text_value":"Japan Agency for Marine-Earth Science and Technology Center for Deep Earth Exploration"},{"subitem_text_language":"en","subitem_text_value":"Okayama University Institute for Study of the Earth's Interior"},{"subitem_text_language":"en","subitem_text_value":"University of Tokyo Graduate School of Frontier Sciences"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"黒澤, 耕介"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"石橋, 高"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"杉田, 精司"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"門野, 敏彦"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"大野, 宗祐"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"松井, 孝典"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kurosawa, Kosuke","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ishibashi, Ko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sugita, Seiji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kadono, Toshihiko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ono, Sosuke","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Matsui, Takafumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"超高速衝突","subitem_subject_scheme":"Other"},{"subitem_subject":"衝突破片","subitem_subject_scheme":"Other"},{"subitem_subject":"惑星大気","subitem_subject_scheme":"Other"},{"subitem_subject":"シアン化水素","subitem_subject_scheme":"Other"},{"subitem_subject":"有機化合物","subitem_subject_scheme":"Other"},{"subitem_subject":"炭素質隕石","subitem_subject_scheme":"Other"},{"subitem_subject":"黒鉛","subitem_subject_scheme":"Other"},{"subitem_subject":"高温","subitem_subject_scheme":"Other"},{"subitem_subject":"生命科学","subitem_subject_scheme":"Other"},{"subitem_subject":"hypervelocity impact","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"impact fragment","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"planetary atmosphere","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"hydrogen cyanide","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"organic compound","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"carbonaceous meteorite","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"graphite","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"high temperature","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"life science","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"HCN formation by the chemical interaction between high-speed impact fragments and a planetary atmosphere","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"HCN formation by the chemical interaction between high-speed impact fragments and a planetary atmosphere","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["1790","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"20514","relation_version_is_last":true,"title":["HCN formation by the chemical interaction between high-speed impact fragments and a planetary atmosphere"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T03:49:12.202205+00:00"}