{"created":"2023-06-20T15:17:04.924001+00:00","id":10857,"links":{},"metadata":{"_buckets":{"deposit":"7076e18b-c7dd-4f12-86b2-6c53528d8c8b"},"_deposit":{"created_by":19,"id":"10857","owners":[19],"pid":{"revision_id":0,"type":"depid","value":"10857"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00010857","sets":["6:7"]},"author_link":["66628","126808","122374","126810","126811","126812","126807","126813","126809","66272","66630"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-01-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageStart":"109","bibliographicVolumeNumber":"852","bibliographic_titles":[{"bibliographic_title":"The Astrophysical Journal"}]}]},"item_10001_description_4":{"attribute_name":"著者ID","attribute_value_mlt":[{"subitem_description":"0000-0001-8253-6850","subitem_description_type":"Other"}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Ejected material from neutron star mergers gives rise to electromagnetic emission powered by radioactive decays of r-process nuclei, the so-called kilonova or macronova. While properties of the emission are largely affected by opacities in the ejected material, available atomic data for r-process elements are still limited. We perform atomic structure calculations for r-process elements: Se (Z = 34), Ru (Z = 44), Te (Z = 52), Ba (Z = 56), Nd (Z = 60), and Er (Z = 68). We confirm that the opacities from bound–bound transitions of open f-shell, lanthanide elements (Nd and Er) are higher than those of the other elements over a wide wavelength range. The opacities of open s-shell (Ba), p-shell (Se and Te), and d-shell (Ru) elements are lower than those of open f-shell elements, and their transitions are concentrated in the ultraviolet and optical wavelengths. We show that the optical brightness can be different by $\\gt 2$ mag depending on the element abundances in the ejecta such that post-merger, lanthanide-free ejecta produce brighter and bluer optical emission. Such blue emission from post-merger ejecta can be observed from the polar directions if the mass of the preceding dynamical ejecta in these regions is small. For the ejecta mass of 0.01 ${M}_{\\odot }$, observed magnitudes of the blue emission will reach 21.0 mag (100 Mpc) and 22.5 mag (200 Mpc) in the g and r bands within a few days after the merger, which are detectable with 1 m or 2 m class telescopes.","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Astronomical Society "},{"subitem_publisher":"IOP Publishing"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.3847/1538-4357/aaa0cb","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Citation Masaomi Tanaka et al 2018 ApJ 852 109"}]}]},"item_10001_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Publisher version"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.3847/1538-4357/aaa0cb","subitem_relation_type_select":"DOI"}}]},"item_10001_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"This is the Accepted Manuscript version of an article accepted for publication in the Astrophysical Journal.  IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it.  The Version of Record is available online at doi.org/10.3847/1538-4357/aaa0cb."},{"subitem_rights":" © 2018. The American Astronomical Society. All rights reserved."}]},"item_10001_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA00553242","subitem_source_identifier_type":"NCID"}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0004637X","subitem_source_identifier_type":"ISSN"}]},"item_10001_text_23":{"attribute_name":"NAIS","attribute_value_mlt":[{"subitem_text_value":"|||"}]},"item_10001_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"TANAKA, Masaomi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KATO,  Daiji"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"GAIGALAS, Gediminas"}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"RYNKUN, Pavel"}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Radžiūtė, Laima"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"WANAJO, Shinya"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SEKIGUCHI, Yuichiro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakamura,  Nobuyuki"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TAMURA, Hajime"}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"MURAKAMI,  Izumi"}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"SAKAUE,  Hiroyuki A."}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2021-12-22"}],"displaytype":"detail","filename":"APJ_852_pp109.pdf","filesize":[{"value":"411.1 kB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"APJ_852_pp109","url":"https://nifs-repository.repo.nii.ac.jp/record/10857/files/APJ_852_pp109.pdf"},"version_id":"f9c5f609-1b57-4c54-9526-2d77fac45775"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"gravitational waves","subitem_subject_scheme":"Other"},{"subitem_subject":"nuclear reactions","subitem_subject_scheme":"Other"},{"subitem_subject":"nucleosynthesis","subitem_subject_scheme":"Other"},{"subitem_subject":"abundances","subitem_subject_scheme":"Other"},{"subitem_subject":"opacity","subitem_subject_scheme":"Other"},{"subitem_subject":"radiative transfer","subitem_subject_scheme":"Other"},{"subitem_subject":"stars: neutron","subitem_subject_scheme":"Other"},{"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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Properties of Kilonovae from Dynamical and Post-merger Ejecta of Neutron Star Mergers","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Properties of Kilonovae from Dynamical and Post-merger Ejecta of Neutron Star Mergers"}]},"item_type_id":"10001","owner":"19","path":["7"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-12-22"},"publish_date":"2021-12-22","publish_status":"0","recid":"10857","relation_version_is_last":true,"title":["Properties of Kilonovae from Dynamical and Post-merger Ejecta of Neutron Star Mergers"],"weko_creator_id":"19","weko_shared_id":19},"updated":"2024-04-12T00:30:25.435468+00:00"}