{"created":"2023-06-20T15:03:49.236559+00:00","id":33023,"links":{},"metadata":{"_buckets":{"deposit":"e286639b-ef3c-4471-81ad-d945e0c031b5"},"_deposit":{"created_by":1,"id":"33023","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"33023"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00033023","sets":["1887:1890","1896:1898:1899:1912"]},"author_link":["413414","413421","413429","413411","413423","413419","413428","413406","413409","413410","413418","413405","413417","413420","413407","413412","413408","413422","413424","413416","413415","413426","413425","413427","413413"],"item_9_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Observation of Gamma-ray Bursts with GINGA"}]},"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1989-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"28","bibliographicPageStart":"3","bibliographicVolumeNumber":"23","bibliographic_titles":[{"bibliographic_title":"宇宙科学研究所報告. 特集: 宇宙観測研究報告"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"宇宙科学研究所の人工衛星「ぎんが」に, ロスアラモス国立研究所と共同して日本で始めての本格的なガンマ線バースト検出器が搭載された。1987年2月の観測開始以来, 観測器は順調に働き, 1988年11月までに約40個のガンマ線バーストの侯補を観測した。ガンマ線バーストとはその名前が示すように, 強いガンマ線フラックス(主に数100keVの光子)が短時間だけ宇宙から降りそそぐ現象である。1967年の発見以来数多くの研究が行われたが, まだその起源についての確実な証拠が得られていない。今回人工衛星「ぎんが」による観測ではとくに1.5keVから380keVにわたる広いエネルギー領域を二つの検出器によって観測する事により, ガンマ線バーストのエネルギー分布の時間的な変化を詳しく研究する事が可能になった。その結果つぎの2点に関し確実な観測事実を得た。(1)ガンマ線バースト現象にはガンマ線光子の放出が終わったあとでX線での長い放出過程がある。(2)スペクトルにサイクロトロン過程によるものと思われるハーモニック構造がある。これらのことからガンマ線バーストの起源が強い磁場を持つ中性子星であることがほぼ確定的になったと考えられる。","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Gamma-ray Burst Detector System (GBD) on board the scientific satellite 'GINGA' which was launched on Feb. 5,1987,was realized as an international cooperation between ISAS and LANL. It has recorded more than 40 Gamma-Ray Burst candidates during 20 months observation. Although many observational evidences were accumulated in past 20 years after the discovery of gamma-ray burst by LANL scientists, there are not enough evidence to determine the origin and the production mechanism of the gamma-ray burst. GBD consists of a proportional counter and a NaI scintillation counter so that it became possible to observe energy spectrum of the gamma-ray burst with high energy resolution over wide range of energy (1.5-380keV) together with high time resolution. As the result of observation, the following facts are obtained : (1) A large fraction of observed gamma-ray bursts has a long X-ray tail after the harder part of gamma-ray emission has terminated. (2) Clear spectral absorption features with harmonic in energy was observed in some of the energy spectrum of gamma-ray bursts. These evidences support the hypothesis that the strongly magnetized neutron star is the origin of gamma-ray burst.","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA0166872000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙科学研究所"}]},"item_9_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0285-9920","subitem_source_identifier_type":"ISSN"}]},"item_9_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00354485","subitem_source_identifier_type":"NCID"}]},"item_9_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"ゴダードスペースフライトセンター"},{"subitem_text_value":"理化学研究所"},{"subitem_text_value":"宇宙線研究所"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"村上, 敏夫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"藤井, 正美"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"西村, 純"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山上, 隆正"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉田, 篤正"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"内久根, 寛"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"洲崎, 恩"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"伊藤, 真之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"河合, 誠之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"近藤, 一郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"MURAKAMI, Toshio","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"FUJII, Masami","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NISHIMURA, Jun","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"YAMAGAMI, Takamasa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"YOSHIDA, Atsumasa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"UCHIKUNE, Hiroshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SUZAKI, Megumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"ITOH, Masayuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KAWAI, Nobuyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KONDO, Ichiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"FENIMORE, E.E.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"CONNER, J.P.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"EPSTEIN, R.I.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KLEBESADEL, R.W.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"EVANS, D.W.","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":"2020-01-24"}],"displaytype":"detail","filename":"SA0166872.pdf","filesize":[{"value":"1.6 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SA0166872.pdf","url":"https://jaxa.repo.nii.ac.jp/record/33023/files/SA0166872.pdf"},"version_id":"433ff40b-990e-432e-be3f-3239c00a0f51"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"ガンマ線バースト","subitem_subject_scheme":"Other"},{"subitem_subject":"サイクロトロン過程","subitem_subject_scheme":"Other"},{"subitem_subject":"中性子星","subitem_subject_scheme":"Other"},{"subitem_subject":"強磁場","subitem_subject_scheme":"Other"},{"subitem_subject":"Gamma-ray bursts","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Cyclotron absorption","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Neutron stars","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Strong magnetic field","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"「ぎんが」によるガンマ線バーストの観測","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"「ぎんが」によるガンマ線バーストの観測"}]},"item_type_id":"9","owner":"1","path":["1890","1912"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"33023","relation_version_is_last":true,"title":["「ぎんが」によるガンマ線バーストの観測"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T00:17:49.305268+00:00"}