{"created":"2023-06-20T14:36:47.218853+00:00","id":3144,"links":{},"metadata":{"_buckets":{"deposit":"0eaf588b-cbc8-4d00-8fc0-4601a6bb8ea9"},"_deposit":{"created_by":1,"id":"3144","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"3144"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00003144","sets":["1887:1891","9:789:806:808"]},"author_link":["11892","11893","11896","11891","11894","11895"],"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-03-09","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"354","bibliographicPageStart":"351","bibliographicVolumeNumber":"JAXA-SP-17-009E","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構特別資料"},{"bibliographic_title":"JAXA Special Publication: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life","bibliographic_titleLang":"en"}]}]},"item_5_description_14":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第4回「あかり」国際会議 (2017年10月17-20日. 東京大学), 文京区, 東京","subitem_description_type":"Other"}]},"item_5_description_15":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）（英）","attribute_value_mlt":[{"subitem_description":"The 4th AKARI International Conference: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life (October 17-20, 2017. The University of Tokyo), Bunkyo-ku, Tokyo, Japan","subitem_description_type":"Other"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Star-forming galaxies display a close relation among stellar mass, metallicity and star-formation rate (or molecular-gas mass). This is known as the fundamental metallicity relation (FMR; or molecular-gas FMR), and it has a profound implication on models of galaxy evolution. However, there still remains a significant residual scatter around the FMR. We show here that a fourth parameter, the surface density of stellar mass, reduces the dispersion around the molecular-gas FMR. In a principal component analysis of 29 physical parameters of 41,338 star-forming galaxies, the surface density of stellar mass is found to be the fourth most important parameter. The new four-dimensional (4D) fundamental relation forms a tighter hypersurface that reduces the metallicity dispersion to 50% of that of the molecular-gas FMR. We suggest that future analyses and models of galaxy evolution should consider the FMR in a 4D space that includes surface density. The dilution time scale of gas inflow and the star-formation efficiency could explain the observational dependence on surface density of stellar mass. AKARI is expected to play an important role in shedding light on the infrared properties of the new 4D FMR.","subitem_description_type":"Other"}]},"item_5_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"形態: カラー図版あり","subitem_description_type":"Other"}]},"item_5_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Physical characteristics: Original contains color illustrations","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA1730026070","subitem_description_type":"Other"}]},"item_5_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-SP-17-009E","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(JAXA)"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_5_source_id_22":{"attribute_name":"ISSNONLINE","attribute_value_mlt":[{"subitem_source_identifier":"2433-2232","subitem_source_identifier_type":"ISSN"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"国立清華大学"},{"subitem_text_value":"国立清華大学"},{"subitem_text_value":"国立清華大学"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"National Tsing Hua University"},{"subitem_text_language":"en","subitem_text_value":"National Tsing Hua University"},{"subitem_text_language":"en","subitem_text_value":"National Tsing Hua University"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"橋本, 哲也"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"後藤, 友嗣"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"百瀬, 莉恵子"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hashimoto, Tetsuya","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Goto, Tomotsugu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Momose, Rieko","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":"AA1730026070.pdf","filesize":[{"value":"472.3 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"AA1730026070.pdf","url":"https://jaxa.repo.nii.ac.jp/record/3144/files/AA1730026070.pdf"},"version_id":"ca988c8c-2e27-4e36-bd0f-817fe02a4b53"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"star-forming galaxy","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":"Surface density: a new parameter in the fundamental metallicity relation of star-forming galaxies","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Surface density: a new parameter in the fundamental metallicity relation of star-forming galaxies","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["808","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-05-18"},"publish_date":"2018-05-18","publish_status":"0","recid":"3144","relation_version_is_last":true,"title":["Surface density: a new parameter in the fundamental metallicity relation of star-forming galaxies"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T09:08:33.995681+00:00"}