{"created":"2023-06-20T14:43:30.996528+00:00","id":10900,"links":{},"metadata":{"_buckets":{"deposit":"8e7c7b59-5491-4797-90bb-82bd3f168d7b"},"_deposit":{"created_by":1,"id":"10900","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"10900"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00010900","sets":["1543:1580:1590","1887:1891"]},"author_link":["93102","93094","93105","93097","93095","93101","93100","93111","93104","93096","93106","93103","93099","93109","93110","93108","93098","93107"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Suzaku observation of super-high temperature gas in RXJ1347.5-1145 cluster of galaxies"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"9","bibliographic_titles":[{"bibliographic_title":"宇宙科学シンポジウム講演集録"},{"bibliographic_title":"Proceedings of the Space Science Symposium","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9回宇宙科学シンポジウム(2009年1月6日-7日, 宇宙航空研究開発機構宇宙科学研究本部)","subitem_description_type":"Other"}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"最大光度を持つ遠方銀河団RXJ1347.5-1145の「すざく」によるブロードバンドX線分光観測の結果について報告する。過去の電波観測から、この銀河団の南東領域に温度が20keVを超えるような超高温ガスがあることが示唆されてきた。この高温成分の性質や起源をさらに探ることは銀河団形成史やガスの物理状態の理解にとって意義が大きい。すざくデータ解析においては、まず、単純な一温度ガスからの熱的放射モデルを仮定すると、X線スペクトルの連続成分と鉄輝線を同時に再現することができない。次に、二温度モデルを用いるとスペクトルフィットが有意に改善する。またHXD検出器により、統計的に7σの有意性を持つ硬X線放射を検出した(但しバックグラウンドの不定性を考慮すると検出はマージナル)。そこでさらに、すざくXIS+HXDおよびChandraデータの詳細な同時解析を行い、高温成分の温度を決定した。その結果、kT = 25.3 +6.1 -4.5, +6.9 -9.5 keVを得た(誤差は90%統計誤差と系統誤差)。これは現在知られる最も高温の銀河団ガスであり、X線分光のみからこのように精度よく温度決定できたのは初めてである。この温度は銀河団の平均温度より2倍以上高く、RXJ1347が最近、銀河団同士の激しい衝突合体を経験し、強いガス加熱が起きたという説を支持する。また超高温ガスのX線スペクトルは熱的放射が起源であると解釈でき、一方非熱的放射は有意にはなかった。これより非熱的硬X線放射の上限値として8 x 10(exp -12) erg s(exp -1) cm(exp -2)を得た。詳細は Ota et al. 2008 A&A 491 363。なお本研究は、すざく速報や東京新聞一面「宇宙一熱い3億度ガス」等を通じて紹介されました。","subitem_description_type":"Abstract"}]},"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_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0064293136","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)"}]},"item_5_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12268979","subitem_source_identifier_type":"NCID"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究本部"},{"subitem_text_value":"埼玉大学"},{"subitem_text_value":"東邦大学"},{"subitem_text_value":"テキサス大学"},{"subitem_text_value":"東北大学"},{"subitem_text_value":"国立天文台"},{"subitem_text_value":"国立天文台野辺山"},{"subitem_text_value":"東京大学"},{"subitem_text_value":"筑波大学"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)"},{"subitem_text_language":"en","subitem_text_value":"Saitama University"},{"subitem_text_language":"en","subitem_text_value":"Toho University"},{"subitem_text_language":"en","subitem_text_value":"University of Texas at Austin"},{"subitem_text_language":"en","subitem_text_value":"Tohoku University"},{"subitem_text_language":"en","subitem_text_value":"National Astronomical Observatory of Japan"},{"subitem_text_language":"en","subitem_text_value":"Nobeyama Radio Observatory, National Astronomical Observatory of Japan"},{"subitem_text_language":"en","subitem_text_value":"University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"University of Tsukuba"}]},"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":"太田, 直美"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"村瀬, 弘一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"北山, 哲"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小松, 英一郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"服部, 誠"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"松尾, 宏"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"大島, 泰"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"須藤, 靖"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉川, 耕司"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ota, Naomi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Murase, Kouichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kitayama, Satoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Komatsu, Eiichiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hattori, Makoto","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Matsuo, Hiroshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Oshima, Tai","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Suto, Yasushi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yoshikawa, Koji","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"すざく衛星によるRXJ1347.5-1145銀河団中の超高温ガスの観測","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"すざく衛星によるRXJ1347.5-1145銀河団中の超高温ガスの観測"}]},"item_type_id":"5","owner":"1","path":["1590","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"10900","relation_version_is_last":true,"title":["すざく衛星によるRXJ1347.5-1145銀河団中の超高温ガスの観測"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T06:45:06.981034+00:00"}