{"created":"2023-05-15T15:25:21.768874+00:00","id":12964,"links":{},"metadata":{"_buckets":{"deposit":"0b43a0b0-a76c-4f54-b2ee-7403c156a3a9"},"_deposit":{"created_by":3,"id":"12964","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"12964"},"status":"published"},"_oai":{"id":"oai:sucra.repo.nii.ac.jp:00012964","sets":["94:426"]},"author_link":["20495","20496","20486","20490","28662","20497","20494","20488","20491","28661","20485","20500","20487","28663","20492","20489","20493","28665","16704","28664","20482","20501","20499","20498"],"item_119_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2007","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"L98","bibliographicPageStart":"L95","bibliographicVolumeNumber":"668","bibliographic_titles":[{"bibliographic_title":"The Astrophysical Journal Letters"}]}]},"item_119_date_31":{"attribute_name":"作成日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2007-11-20","subitem_date_issued_type":"Created"}]},"item_119_description_19":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We study the \"normal\" decay phase of the X- ray afterglows of gamma- ray bursts ( GRBs), which follows the shallow decay phase, using the events simultaneously observed in the R band. The classical external- shock model - in which neither the delayed energy injection nor time dependency of shock microphysics is considered shows that the decay indices of the X- ray and R- band light curves, alpha(x) and alpha(o), obey a certain relation, and that in particular, alpha(o) - alpha(x) should be larger than -1/4 unless the ambient density increases with the distance from the central engine. For our selected 14 samples, we have found that four events violate the limit at more than the 3 sigma level, so that a fraction of events are outliers of the classical external-shock model at the \"normal\" decay phase.","subitem_description_type":"Abstract"}]},"item_119_description_29":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"text","subitem_description_type":"Other"}]},"item_119_description_30":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_119_publisher_11":{"attribute_name":"出版者名","attribute_value_mlt":[{"subitem_publisher":"American Astronomical Society"}]},"item_119_relation_16":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.1086/522930","subitem_relation_type_select":"DOI"}}]},"item_119_source_id_14":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0004637X","subitem_source_identifier_type":"ISSN"}]},"item_119_text_3":{"attribute_name":"著者 ローマ字","attribute_value_mlt":[{"subitem_text_value":"Urata, Yuji"},{"subitem_text_value":"Yamazaki, Ryo"},{"subitem_text_value":"Sakamoto, Takanori"},{"subitem_text_value":"Huang, Kuiyun"},{"subitem_text_value":"Zheng, Weikang"},{"subitem_text_value":"Sato, Goro"},{"subitem_text_value":"Aoki, Tsutomu"},{"subitem_text_value":"Deng, Jinsong"},{"subitem_text_value":"Ioka, Kunihito"},{"subitem_text_value":"Ip, WingHuen"},{"subitem_text_value":"Kawabata, Koji S."},{"subitem_text_value":"Lee, YiHsi"},{"subitem_text_value":"Xin, Liping"},{"subitem_text_value":"Mito, Hiroyuki"},{"subitem_text_value":"Miyata, Takashi"},{"subitem_text_value":"Nakada, Yoshikazu"},{"subitem_text_value":"Ohsugi, Takashi"},{"subitem_text_value":"Qiu, Yulei"},{"subitem_text_value":"Soyano, Takao"},{"subitem_text_value":"Tarusawa, Kenichi"},{"subitem_text_value":"Tashiro, Makoto"},{"subitem_text_value":"Uemura, Makoto"},{"subitem_text_value":"Wei, Jianyan"},{"subitem_text_value":"Yamashita, Takuya"}]},"item_119_text_32":{"attribute_name":"アイテムID","attribute_value_mlt":[{"subitem_text_value":"A1002306"}]},"item_119_text_4":{"attribute_name":"著者 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