{"created":"2023-06-20T15:16:10.440002+00:00","id":46279,"links":{},"metadata":{"_buckets":{"deposit":"7c6f65aa-7e8d-4b71-9caa-819c829767d5"},"_deposit":{"created_by":1,"id":"46279","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"46279"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00046279","sets":["1398:1399:2012","1887:1893","9:10:11:2011"]},"author_link":["513519","513518"],"item_16_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Resolution enhancement with sparse modelling for galaxies detected with AKARI/FIS"}]},"item_16_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2020-03-10","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"11","bibliographicPageStart":"1","bibliographicVolumeNumber":"JAXA-RR-19-006","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構研究開発報告: 宇宙科学情報解析論文誌: 第9号"},{"bibliographic_title":"JAXA Research and Development Report: Journal of Space Science Informatics Japan: Volume 9","bibliographic_titleLang":"en"}]}]},"item_16_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"本研究では, 赤外線天文衛星「あかり」の遠赤外線サーベイヤー(FIS)で検出された近傍銀河の高解像度化を行った. FISの空間分解能は80 arcsec程度と非常に悪く, 近傍銀河のサイズ測定は難しい. そのため, これまでの研究では主としてFISで検出された天体は点源として扱われてきた. しかし, 分解能を改善できれば, いくつもの新しいサイエンスを広げることができる. そこで本研究では, スパースモデリングを用いた逆畳み込みを行い, FIS画像の高解像度化を実現した. 画像の高解像度化は, 観測データとPSFとの整合性および「天体画像は滑らか」「フラックスは非負」という先見情報をコスト関数に組み込み, コスト関数を最小にする画像を求めることによって行った. この方法により, 空間分解能は2倍程度改善された.","subitem_description_type":"Abstract"}]},"item_16_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"This work enhances the spatial resolution of nearby-galaxy images with AKARI Far-infrared surveyor (FIS) via a de-convolution algorithm with a sparse modelling. The resolution of the FIS is about 80 arcsec, which is not enough to measure size of galaxies, so that AKARI/FIS has been used only for a point source analysis in galaxy studies. Hence, in this work, a de-blurring analysis with sparse modelling was performed to enhance the spatial resolution of AKARI/FIS images. The analysis was conducted to reduce an objective function with a data fidelity term, higher degree total variation, and positivity constraint. As a result, the spatial resolution was improved by about twice.","subitem_description_type":"Other"}]},"item_16_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"形態: カラー図版あり","subitem_description_type":"Other"}]},"item_16_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Physical characteristics: Original contains color illustrations","subitem_description_type":"Other"}]},"item_16_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA1930025001","subitem_description_type":"Other"}]},"item_16_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-RR-19-006","subitem_description_type":"Other"}]},"item_16_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.20637/JAXA-RR-19-006/0001","subitem_identifier_reg_type":"JaLC"}]},"item_16_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構(JAXA)"}]},"item_16_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_16_source_id_22":{"attribute_name":"ISSNONLINE","attribute_value_mlt":[{"subitem_source_identifier":"2433-2216","subitem_source_identifier_type":"ISSN"}]},"item_16_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"法政大学"}]},"item_16_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Hosei University"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"村田, 一心"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Murata, Kazumi","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":"2020-03-26"}],"displaytype":"detail","filename":"AA1930025001.pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"AA1930025001.pdf","url":"https://jaxa.repo.nii.ac.jp/record/46279/files/AA1930025001.pdf"},"version_id":"837ead00-bece-4a30-af2f-90f702f52e3b"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"AKARI","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"resolution enhancement","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Far-infrared","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"galaxies","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"size measurement","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":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"スパースモデリングを用いた逆畳み込みによる「あかり」遠赤外線銀河画像の高解像度化","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"スパースモデリングを用いた逆畳み込みによる「あかり」遠赤外線銀河画像の高解像度化"}]},"item_type_id":"16","owner":"1","path":["1893","2011","2012"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-03-10"},"publish_date":"2020-03-10","publish_status":"0","recid":"46279","relation_version_is_last":true,"title":["スパースモデリングを用いた逆畳み込みによる「あかり」遠赤外線銀河画像の高解像度化"],"weko_creator_id":"1","weko_shared_id":1},"updated":"2023-06-20T20:03:37.266895+00:00"}