{"created":"2023-06-20T14:36:00.274399+00:00","id":2298,"links":{},"metadata":{"_buckets":{"deposit":"d777709a-6ebe-4a3d-9442-aaa00620ed64"},"_deposit":{"created_by":1,"id":"2298","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2298"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00002298","sets":["1887:1893","9:10:256:302"]},"author_link":["5126","5113","5114","5127","5125","5109","5121","5124","5119","5123","5116","5108","5122","5117","5120","5110","5112","5118","5111","5115"],"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2005-11-30","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"JAXA-RR-05-007E","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構研究開発報告"},{"bibliographic_title":"JAXA Research and Development Report","bibliographic_titleLang":"en"}]}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The Mercury Sodium Atmosphere Spectral Imager (MSASI) on the BepiColombo/Mercury Magnetospheric Orbiter (MMO) is a high-dispersion Fabry-Perot imager. MSASI will address a wealth of fundamental scientific questions pertaining to the Mercury's exosphere. Together, our measurement on the overall scale will provide ample new information on regolith-exosphere-magnetosphere coupling as well as new understanding of the dynamics governing the 'surface-bounded exosphere'. It arises quite clearly from continuous ground-based observations that the regolith of Mercury releases a fraction of its content to Mercury's exosphere. Some processes are identified up to now as leading to this ejection. These processes are associated with different energies of ejection, behavior in different regions of Mercury's surface and eject different types of population from the surface. The responsible processes are (1) Chemical sputtering, (2) Thermal desorption, (3) Photon-stimulated desorption, (4) Ion sputtering, and (5) Micro-meteoroid impact/vaporization. Each candidate seems to be fairly operative, but any cannot completely explain phenomena observed from the Earth. Also, the fate of ejecta from the regolith is still unknown. Some are expected to return to the lithosphere, the others are lost to interplanetary space. Circulation of lithospheric sodium atoms via exosphere-magnetosphere might bring a significant change in the composition of surface layer on Mercury. The MSASI measurements clearly and definitely can identify the release mechanism, how exospheric sodium is born from the regolith, and bring comprehensive picture of global circulation of regolith materials. Also, BepiColombo is the first and unique opportunity to study the formation, circulation, maintenance of this surface-bounded exosphere, which is a different type of terrestrial atmosphere. Below we describe in somewhat more detail the primary scientific objectives of MSASI.","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0049190000","subitem_description_type":"Other"}]},"item_3_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-RR-05-007E","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-1113","subitem_source_identifier_type":"ISSN"}]},"item_3_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA1192675X","subitem_source_identifier_type":"NCID"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"立教大学"},{"subitem_text_value":"東京大学"},{"subitem_text_value":"東京大学"},{"subitem_text_value":"東北大学"},{"subitem_text_value":"東北大学"},{"subitem_text_value":"国立極地研究所"},{"subitem_text_value":"東北大学"},{"subitem_text_value":"宇宙航空研究開発機構 宇宙科学研究本部"},{"subitem_text_value":"東北大学"},{"subitem_text_value":"Russian Academy of Sciences Space Research Institute"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Rikkyo University"},{"subitem_text_language":"en","subitem_text_value":"University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"Tohoku University"},{"subitem_text_language":"en","subitem_text_value":"Tohoku University"},{"subitem_text_language":"en","subitem_text_value":"National Institute of Polar Research"},{"subitem_text_language":"en","subitem_text_value":"Tohoku University"},{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space and Astronautical Science"},{"subitem_text_language":"en","subitem_text_value":"Tohoku University"},{"subitem_text_language":"en","subitem_text_value":"Russian Academy of Sciences Space Research Institute"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"野澤, 宏大"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉川, 一朗"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"亀田, 真吾"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"三澤, 浩昭"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"岡野, 章一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"田口, 真"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山崎, 敦"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"笠羽, 康正"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"高見沢, 広司"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Korablev, Oleg"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nozawa, Hiromasa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yoshikawa, Ichiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kameda, Shingo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Misawa, Hiroaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Okano, Shoichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Taguchi, Makoto","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamazaki, Atsushi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kasaba, Yasumasa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takamizawa, Koji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Korablev, Oleg","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-15"}],"displaytype":"detail","filename":"49190000.pdf","filesize":[{"value":"10.8 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sodium atmosphere spectral imager","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Mercury atmosphere","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"BepiColombo","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Mercury magnetospheric orbiter","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"CMOS image sensor","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"microchannel plate","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"etalon","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"optical filter","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"image intensifier","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Fabry-Perot interferometer","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"exosphere","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":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"The Mercury Sodium Atmosphere Spectral Imager (MSASI)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"The Mercury Sodium Atmosphere Spectral Imager (MSASI)","subitem_title_language":"en"}]},"item_type_id":"3","owner":"1","path":["302","1893"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"2298","relation_version_is_last":true,"title":["The Mercury Sodium Atmosphere Spectral Imager (MSASI)"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T09:25:04.250774+00:00"}