{"created":"2025-02-21T03:18:30.664167+00:00","id":2006346,"links":{},"metadata":{"_buckets":{"deposit":"1684c063-b3e0-437f-b2e3-b223f9cb3ea8"},"_deposit":{"created_by":41,"id":"2006346","owners":[41],"pid":{"revision_id":0,"type":"depid","value":"2006346"},"status":"published"},"_oai":{"id":"oai:hiroshima.repo.nii.ac.jp:02006346","sets":["1730444907710"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_title":"Early Phase Obserbations of Extermely Luminous Type Ia Supernova 2009dc","subitem_title_language":"en"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yamanaka, Masayuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"Yamanaka","familyNameLang":"en"}],"givenNames":[{"givenName":"Masayuki","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kawabata, Koji S.","creatorNameLang":"en"}],"familyNames":[{"familyName":"Kawabata","familyNameLang":"en"}],"givenNames":[{"givenName":"Koji S.","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kinugasa, Kenzo","creatorNameLang":"en"}],"familyNames":[{"familyName":"Kinugasa","familyNameLang":"en"}],"givenNames":[{"givenName":"Kenzo","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Tanaka, Masaomi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Tanaka","familyNameLang":"en"}],"givenNames":[{"givenName":"Masaomi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Imada, Akira","creatorNameLang":"en"}],"familyNames":[{"familyName":"Imada","familyNameLang":"en"}],"givenNames":[{"givenName":"Akira","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Maeda, Keiichi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Maeda","familyNameLang":"en"}],"givenNames":[{"givenName":"Keiichi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Nomoto, Ken'ichi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Nomoto","familyNameLang":"en"}],"givenNames":[{"givenName":"Ken'ichi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Arai, Akira","creatorNameLang":"en"}],"familyNames":[{"familyName":"Arai","familyNameLang":"en"}],"givenNames":[{"givenName":"Akira","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Chiyonobu, Shingo","creatorNameLang":"en"}],"familyNames":[{"familyName":"Chiyonobu","familyNameLang":"en"}],"givenNames":[{"givenName":"Shingo","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Fukazawa, Yasushi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Fukazawa","familyNameLang":"en"}],"givenNames":[{"givenName":"Yasushi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Hashimoto, Osamu","creatorNameLang":"en"}],"familyNames":[{"familyName":"Hashimoto","familyNameLang":"en"}],"givenNames":[{"givenName":"Osamu","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Honda, Satoshi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Honda","familyNameLang":"en"}],"givenNames":[{"givenName":"Satoshi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Ikejiri, Yuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"Ikejiri","familyNameLang":"en"}],"givenNames":[{"givenName":"Yuki","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Itoh, Ryosuke","creatorNameLang":"en"}],"familyNames":[{"familyName":"Itoh","familyNameLang":"en"}],"givenNames":[{"givenName":"Ryosuke","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kamata, Yukiko","creatorNameLang":"en"}],"familyNames":[{"familyName":"Kamata","familyNameLang":"en"}],"givenNames":[{"givenName":"Yukiko","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kawai, Nobuyuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"Kawai","familyNameLang":"en"}],"givenNames":[{"givenName":"Nobuyuki","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Komatsu, Tomoyuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"Komatsu","familyNameLang":"en"}],"givenNames":[{"givenName":"Tomoyuki","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Konishi, Kohki","creatorNameLang":"en"}],"familyNames":[{"familyName":"Konishi","familyNameLang":"en"}],"givenNames":[{"givenName":"Kohki","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kuroda, Daisuke","creatorNameLang":"en"}],"familyNames":[{"familyName":"Kuroda","familyNameLang":"en"}],"givenNames":[{"givenName":"Daisuke","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Miyamoto, Hisashi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Miyamoto","familyNameLang":"en"}],"givenNames":[{"givenName":"Hisashi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Miyazaki, Satoshi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Miyazaki","familyNameLang":"en"}],"givenNames":[{"givenName":"Satoshi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Nagae, Osamu","creatorNameLang":"en"}],"familyNames":[{"familyName":"Nagae","familyNameLang":"en"}],"givenNames":[{"givenName":"Osamu","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Nakaya, Hidehiko","creatorNameLang":"en"}],"familyNames":[{"familyName":"Nakaya","familyNameLang":"en"}],"givenNames":[{"givenName":"Hidehiko","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Ohsugi, Takashi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Ohsugi","familyNameLang":"en"}],"givenNames":[{"givenName":"Takashi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Omodaka, Toshihiro","creatorNameLang":"en"}],"familyNames":[{"familyName":"Omodaka","familyNameLang":"en"}],"givenNames":[{"givenName":"Toshihiro","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Sakai, Nobuyuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"Sakai","familyNameLang":"en"}],"givenNames":[{"givenName":"Nobuyuki","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Sasada, Mahito","creatorNameLang":"en"}],"familyNames":[{"familyName":"Sasada","familyNameLang":"en"}],"givenNames":[{"givenName":"Mahito","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Suzuki, Mariko","creatorNameLang":"en"}],"familyNames":[{"familyName":"Suzuki","familyNameLang":"en"}],"givenNames":[{"givenName":"Mariko","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Taguchi, Hikaru","creatorNameLang":"en"}],"familyNames":[{"familyName":"Taguchi","familyNameLang":"en"}],"givenNames":[{"givenName":"Hikaru","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Takahashi, Hidenori","creatorNameLang":"en"}],"familyNames":[{"familyName":"Takahashi","familyNameLang":"en"}],"givenNames":[{"givenName":"Hidenori","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Tanaka, Hiroyuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"Tanaka","familyNameLang":"en"}],"givenNames":[{"givenName":"Hiroyuki","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Uemura, Makoto","creatorNameLang":"en"}],"familyNames":[{"familyName":"Uemura","familyNameLang":"en"}],"givenNames":[{"givenName":"Makoto","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yamashita, Takuya","creatorNameLang":"en"}],"familyNames":[{"familyName":"Yamashita","familyNameLang":"en"}],"givenNames":[{"givenName":"Takuya","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yanagisawa, Kenshi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Yanagisawa","familyNameLang":"en"}],"givenNames":[{"givenName":"Kenshi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yoshida, Michitoshi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Yoshida","familyNameLang":"en"}],"givenNames":[{"givenName":"Michitoshi","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_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_subject":"supernovae","subitem_subject_scheme":"Other"},{"subitem_subject":"general","subitem_subject_scheme":"Other"},{"subitem_subject":"supernovae","subitem_subject_scheme":"Other"},{"subitem_subject":"individual (SN 2009dc, SNe 2003fg, 2006gz)","subitem_subject_scheme":"Other"},{"subitem_subject":"440","subitem_subject_scheme":"NDC"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"We present early phase observations in optical and near-infrared wavelengths for the extremely luminous Type Ia supernova (SN Ia) 2009dc. The decline rate of the light curve is Delta m(15)(B) = 0.65 +/- 0.03, which is one of the slowest among SNe Ia. The peak V-band absolute magnitude is estimated to be M-V = -19.90 +/- 0.15 mag if no host extinction is assumed. It reaches M-V = -20.19 +/- 0.19 mag if we assume the host extinction of A(V) = 0.29 mag. SN 2009dc belongs to the most luminous class of SNe Ia, like SNe 2003fg and 2006gz. Our JHK(s)-band photometry shows that this SN is also one of the most luminous SNe Ia in near-infrared wavelengths. We estimate the ejected Ni-56 mass of 1.2 +/- 0.3 M-circle dot for the no host extinction case (and of 1.6 +/- 0.4 M-circle dot for the host extinction of A(V) = 0.29 mag). The C II lambda 6580 absorption line remains visible until a week after the maximum brightness, in contrast to its early disappearance in SN 2006gz. The line velocity of Si II lambda 6355 is about 8000 km s(-1) around the maximum, being considerably slower than that of SN 2006gz. The velocity of the C II line is similar to or slightly less than that of the Si II line around the maximum. The presence of the carbon line suggests that the thick unburned C+O layer remains after the explosion. Spectropolarimetric observations by Tanaka et al. indicate that the explosion is nearly spherical. These observational facts suggest that SN 2009dc is a super-Chandrasekhar mass SN Ia.","subitem_description_language":"en"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_publisher":"IOP Publishing Ltd"}]},"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"},{"subitem_source_identifier":"AA00553264","subitem_source_identifier_type":"NCID"}]},"item_1617187024783":{"attribute_name":"Page Start","attribute_value_mlt":[{"subitem_start_page":"118"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009-12-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"122","bibliographicPageStart":"118","bibliographicVolumeNumber":"707","bibliographic_titles":[{"bibliographic_title":"Astrophysical Journal Letters"},{"bibliographic_title":"Astrophysical Journal Letters"}]}]},"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_b1a7d7d4d402bcce","subitem_version_type":"AO"}]},"item_1617353299429":{"attribute_name":"Relation","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1088/0004-637X/707/2/L118","subitem_relation_type_select":"DOI"}},{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://dx.doi.org/10.1088/0004-637X/707/2/L118","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":"ApJL_707_118.pdf","filesize":[{"value":"246.4 KB"}],"mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://hiroshima.repo.nii.ac.jp/record/2006346/files/ApJL_707_118.pdf"},"version_id":"8de353a1-c25d-4978-a741-7dc0a4725fce"}]},"item_1732771732025":{"attribute_name":"旧ID","attribute_value":"29240"},"item_title":"Early Phase Obserbations of Extermely Luminous Type Ia Supernova 2009dc","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":"2006346","relation_version_is_last":true,"title":["Early Phase Obserbations of Extermely Luminous Type Ia Supernova 2009dc"],"weko_creator_id":"41","weko_shared_id":-1},"updated":"2025-02-21T07:22:16.399164+00:00"}