{"created":"2023-06-20T14:52:30.188725+00:00","id":20657,"links":{},"metadata":{"_buckets":{"deposit":"1feb42dc-7bd9-4a6a-9dd3-7ef878127cb3"},"_deposit":{"created_by":1,"id":"20657","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"20657"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00020657","sets":["1543:1778:1793","1887:1891"]},"author_link":["196986","196987","196985","196988"],"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"巨大衝突直後の原始大気の流体力学的脱出"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2003-11","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"32","bibliographicPageStart":"29","bibliographic_titles":[{"bibliographic_title":"第36回月・惑星シンポジウム"},{"bibliographic_title":"Proceedings of the 36th ISAS Lunar and Planetary Symposium","bibliographic_titleLang":"en"}]}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The escape timescale of an atmosphere heated by a giant impact to an extremely high temperature was calculated. A large amount of vaporized silicate suppresses the escape flux of hydrogen at the surface temperature higher than 4,000 K. Thus, escape timescale of hydrogen is longer than 10(exp 6) years. At 2,000 to 4,000 K, the heavy gases (e.g., H2O, CO2, CO, N2), which are thought to be contained in a proto-atmosphere, suppress the escape flux of hydrogen. For example, when the mean molecular weight is 10 g/mol, the escape timescale of hydrogen is longer than 10(exp 6) years. Since the planetary surface and/or planetary body cools down to 2,000 K within 10(exp 6) years, giant-impact-induced hydrodynamic escape is unlikely for a proto-atmosphere.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0046650008","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 大学院理学系研究科"},{"subitem_text_value":"東京大学 大学院理学系研究科"}]},"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 Science"},{"subitem_text_language":"en","subitem_text_value":"University of Tokyo Graduate School of Science"}]},"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":"玄田, 英典"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"阿部, 豊"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Genda, Hidenori","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Abe, Yutaka","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"原始大気","subitem_subject_scheme":"Other"},{"subitem_subject":"流体力学的脱出","subitem_subject_scheme":"Other"},{"subitem_subject":"巨大衝突","subitem_subject_scheme":"Other"},{"subitem_subject":"高温","subitem_subject_scheme":"Other"},{"subitem_subject":"表面温度","subitem_subject_scheme":"Other"},{"subitem_subject":"惑星大気","subitem_subject_scheme":"Other"},{"subitem_subject":"水素","subitem_subject_scheme":"Other"},{"subitem_subject":"数値解析","subitem_subject_scheme":"Other"},{"subitem_subject":"protoatmosphere","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"hydrodynamic escape","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"giant impact","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"high temperature","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"surface temperature","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"planetary atmosphere","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"hydrogen","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"numerical analysis","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":"Hydrodynamic escape of a proto-atmosphere just after a giant impact","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Hydrodynamic escape of a proto-atmosphere just after a giant impact","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["1793","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"20657","relation_version_is_last":true,"title":["Hydrodynamic escape of a proto-atmosphere just after a giant impact"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T03:47:08.234908+00:00"}