{"created":"2025-02-21T03:18:04.777443+00:00","id":2006331,"links":{},"metadata":{"_buckets":{"deposit":"cd2264a8-4907-43c9-b628-28df07c1880a"},"_deposit":{"created_by":41,"id":"2006331","owners":[41],"pid":{"revision_id":0,"type":"depid","value":"2006331"},"status":"published"},"_oai":{"id":"oai:hiroshima.repo.nii.ac.jp:02006331","sets":["1730444907710"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_title":"A possible origin of bimodal distribution of gamma-ray bursts","subitem_title_language":"en"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Toma, Kenji","creatorNameLang":"en"}],"familyNames":[{"familyName":"Toma","familyNameLang":"en"}],"givenNames":[{"givenName":"Kenji","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yamazaki, Ryo","creatorNameLang":"en"}],"familyNames":[{"familyName":"Yamazaki","familyNameLang":"en"}],"givenNames":[{"givenName":"Ryo","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Nakamura, Takashi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Nakamura","familyNameLang":"en"}],"givenNames":[{"givenName":"Takashi","givenNameLang":"en"}]}]},"item_1617186476635":{"attribute_name":"Access Rights","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_1617186499011":{"attribute_name":"Rights","attribute_value_mlt":[{"subitem_rights":"Copyright (c) 2005 The American Astronomical Society"}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_subject":"440","subitem_subject_scheme":"NDC"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"We study the distribution of the durations of gamma-ray bursts (GRBs) in the unified model of short and long GRBs recently proposed by Yamazaki, Ioka, and Nakamura. Monte Carlo simulations show clear bimodal distributions, with lognormal- like shapes for both short and long GRBs, in a power-law as well as a Gaussian angular distribution of the subjets. We find that the bimodality comes from the existence of the discrete emission regions ( subjets or patchy shells) in the GRB jet. To explain other temporal properties of short and long GRBs, the subjet parameters should depend on the angle in the whole jet.","subitem_description_language":"en"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_publisher":"University of Chicago Press"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_1617186920753":{"attribute_name":"Source Identifier","attribute_value_mlt":[{"subitem_source_identifier":"0004-637X","subitem_source_identifier_type":"ISSN"}]},"item_1617187024783":{"attribute_name":"Page Start","attribute_value_mlt":[{"subitem_start_page":"835"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2005-02","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"839","bibliographicPageStart":"835","bibliographicVolumeNumber":"620","bibliographic_titles":[{"bibliographic_title":"Astrophysical Journal"},{"bibliographic_title":"Astrophysical Journal"}]}]},"item_1617258105262":{"attribute_name":"Resource Type","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_1617265215918":{"attribute_name":"Version Type","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_1617353299429":{"attribute_name":"Relation","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1086/427179","subitem_relation_type_select":"DOI"}},{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://dx.doi.org/10.1086/427179","subitem_relation_type_select":"DOI"}}]},"item_1617605131499":{"attribute_name":"File","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2023-03-18"}],"displaytype":"simple","filename":"AstrophysJ_620_853.pdf","filesize":[{"value":"361.7 KB"}],"mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://hiroshima.repo.nii.ac.jp/record/2006331/files/AstrophysJ_620_853.pdf"},"version_id":"5d6e4385-da4d-4933-9641-45df55be5e23"}]},"item_1732771732025":{"attribute_name":"旧ID","attribute_value":"14646"},"item_title":"A possible origin of bimodal distribution of gamma-ray bursts","item_type_id":"40003","owner":"41","path":["1730444907710"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-03-18"},"publish_date":"2023-03-18","publish_status":"0","recid":"2006331","relation_version_is_last":true,"title":["A possible origin of bimodal distribution of gamma-ray bursts"],"weko_creator_id":"41","weko_shared_id":-1},"updated":"2025-02-21T07:20:32.312085+00:00"}