{"created":"2023-06-20T14:44:17.272504+00:00","id":11711,"links":{},"metadata":{"_buckets":{"deposit":"bd07c903-4810-4c23-ac87-3fce3b1a3f8d"},"_deposit":{"created_by":1,"id":"11711","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"11711"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00011711","sets":["1543:1580:1596","1887:1891"]},"author_link":["103535","103547","103538","103541","103543","103542","103531","103545","103540","103544","103546","103534","103532","103537","103530","103533","103536","103539"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Ultrahigh precision X-ray telescope project: X-mas project"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2003-04","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"488","bibliographicPageStart":"485","bibliographic_titles":[{"bibliographic_title":"第3回宇宙科学シンポジウム"},{"bibliographic_title":"Proceedings of the 3rd Space Science Symposium","bibliographic_titleLang":"en"}]}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"X線望遠鏡の角度分解能の現状は、米国のチャンドラ天文衛星によって、0.5秒角が達成されている。しかし、電波望遠鏡の1ミリ秒角には遠く及ばない。X線でも同程度の角度分解能が達成できれば、電波の観測と比較することでブラックホール近傍の物理やジェットの生成過程を解明することができる。このような目的のもとに、超高精度X線望遠鏡の開発をX-mas(X-ray milli arc second)計画と称して行っている。望遠鏡の角度分解能の限界は、観測する波長と望遠鏡の口径で決まる。この限界を回折限界とよび、およそ波長／口径で決まる。電波望遠鏡では、地球規模あるいはさらに大きな基線長を使い、ミリ秒角を切る角度分解能を達成している。X線望遠鏡の場合も、チャンドラ衛星に搭載しているX線望遠鏡では、口径1.2mであり、例えば波長10Aの観測を行うとすると、ミリ秒角を切る値である。しかし、実際の角度分解能は、0.5秒角に留まっている。これは、望遠鏡の鏡の形状精度が不足していることが原因である。従って、鏡の形状精度を上げれば、宇宙で使える比較的口径の小さなX線望遠鏡で角度分解能ミリ秒角を達成することは可能である。例えば、口径1m、波長13.5nanometerのX線望遠鏡で回折限界の性能を達成するには、表面粗さは数10nanometer、形状誤差は数nanometerの精度が必要である。表面粗さの精度は達成できるが、形状誤差の数nanometerの精度を達成することは、非常に難しい。そこで、光学系の形状誤差を最小限に抑えるため、可視光のすばる望遠鏡で既に用いられている補償光学を、X線望遠鏡に初めて適用した。具体的には、以下の方法を導入した。1)可視光を使った光学系の常時モニター、2)補償光学による主鏡の形状補正。現在は、角度分解能50ミリ秒角を目標とした、口径0.8m、波長域13.5nmの直入射型のX線望遠鏡の研究開発を行っている。ここでは、X-mas計画の光学系の説明および最新の研究結果を報告する。","subitem_description_type":"Abstract"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0045441106","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙科学研究所"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"The Institute of Space and Astronautical Science (ISAS)"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"立教大学 理学部"},{"subitem_text_value":"立教大学 理学部"},{"subitem_text_value":"立教大学 理学部"},{"subitem_text_value":"立教大学 理学部"},{"subitem_text_value":"立教大学 理学部"},{"subitem_text_value":"立教大学 理学部"},{"subitem_text_value":"立教大学 理学部"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"神戸大学 理学部"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Rikkyo University College of Science"},{"subitem_text_language":"en","subitem_text_value":"Rikkyo University College of Science"},{"subitem_text_language":"en","subitem_text_value":"Rikkyo University College of Science"},{"subitem_text_language":"en","subitem_text_value":"Rikkyo University College of Science"},{"subitem_text_language":"en","subitem_text_value":"Rikkyo University College of Science"},{"subitem_text_language":"en","subitem_text_value":"Rikkyo University College of Science"},{"subitem_text_language":"en","subitem_text_value":"Rikkyo University College of Science"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science"},{"subitem_text_language":"en","subitem_text_value":"Kobe University Faculty of Science"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"高野, 晴子"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"北本, 俊二"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"幸村, 孝由"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山本, 則正"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"齋藤, 晴江"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"関口, 宏之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"須賀, 一治"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"上田, 佳宏"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"伊藤, 真之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takano, Haruko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kitamoto, Shunji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Komura, Takayoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamamoto, Norimasa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Saito, Harue","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sekiguchi, Hiroyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Suga, Kazuharu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ueda, Yoshihiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ito, Masayuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"高精度","subitem_subject_scheme":"Other"},{"subitem_subject":"X線望遠鏡","subitem_subject_scheme":"Other"},{"subitem_subject":"マイクロレンズアレイ","subitem_subject_scheme":"Other"},{"subitem_subject":"波面センサー","subitem_subject_scheme":"Other"},{"subitem_subject":"CCDカメラ","subitem_subject_scheme":"Other"},{"subitem_subject":"角分解能","subitem_subject_scheme":"Other"},{"subitem_subject":"SiO2基板","subitem_subject_scheme":"Other"},{"subitem_subject":"Zr","subitem_subject_scheme":"Other"},{"subitem_subject":"X線フィルター","subitem_subject_scheme":"Other"},{"subitem_subject":"研究開発","subitem_subject_scheme":"Other"},{"subitem_subject":"high precision","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"X-ray telescope","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"microlens array","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"wave front sensor","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"CCD camera","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"angular resolution","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"SiO2 substrate","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Zr","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"X ray filter","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"research and development","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":"conference 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