{"created":"2023-05-15T15:29:55.264046+00:00","id":19814,"links":{},"metadata":{"_buckets":{"deposit":"205019e7-9ffc-41a0-84ea-3cfe99591d3c"},"_deposit":{"created_by":3,"id":"19814","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"19814"},"status":"published"},"_oai":{"id":"oai:sucra.repo.nii.ac.jp:00019814","sets":["94:429:431:432:1037"]},"author_link":["30650"],"control_number":"19814","item_113_alternative_title_1":{"attribute_name":"タイトル（別言語）","attribute_value_mlt":[{"subitem_alternative_title":"多波長観測による活動銀河核ジェットからホットスポットへのエネルギー供給の研究"}]},"item_113_biblio_info_9":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022","bibliographicIssueDateType":"Issued"}}]},"item_113_date_35":{"attribute_name":"作成日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2023-01-26","subitem_date_issued_type":"Created"}]},"item_113_date_granted_20":{"attribute_name":"学位授与年月日","attribute_value_mlt":[{"subitem_dategranted":"2022-03-24"}]},"item_113_degree_grantor_22":{"attribute_name":"学位授与機関","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_name":"埼玉大学"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"12401","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_113_degree_name_21":{"attribute_name":"学位名","attribute_value_mlt":[{"subitem_degreename":"博士(理学)"}]},"item_113_description_13":{"attribute_name":"形態","attribute_value_mlt":[{"subitem_description":"iv, 49ｐ","subitem_description_type":"Other"}]},"item_113_description_24":{"attribute_name":"目次","attribute_value_mlt":[{"subitem_description":"Chapter 1. Introduction 1\n\nChapter 2. Energy flow in radio galaxy 3\n      2.1  nucleus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3\n      2.2  jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4\n      2.3  hot spot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4\n      2.4  lobe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4\n\nChapter 3. Broadband radiation of hot spots 5\n      3.1  Radiative process of the hot spot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5\n           3.1.1 Synchrotron radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5\n           3.1.2 Inverse Compton scattering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7\n      3.2  Spectral energy distribution of hot spots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7\n           3.2.1 Synchrotron spectrum with radiative cooling . . . . . . . . . . . . . . . . . . . . . . 7\n           3.2.2 SSC process and energetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8\n\nChapter 4. Instrument 9\n      4.1  Herschel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9\n      4.2  XMM-Newton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9\n      4.3  NuSTAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9\n      \nChapter 5. Hot spots of Cygnus A and Pictor A 11\n      5.1  Characters of Pic A and Cyg A among hot spots . . . . . . . . . . . . . . . . . . . . . . . . 11\n      5.2  Previous studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11\n           5.2.1 Cygnus A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11\n           5.2.2 Pictor A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11\n           \nChapter 6. Observation and Analysis 13\n      6.1  FIR study of Cygnus A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13\n           6.1.1 FIR observation and analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13\n                 Herschel Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13\n                 FIR images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13\n           6.1.2 FIR photometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16\n           6.1.3 Spectrum of the hot spot D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17\n           Subtraction of the contamination from the hot spot E . . . . . . . . . . . . . . . . . 17\n           Spectral modelling of the hot spot D . . . . . . . . . . . . . . . . . . . . . . . . . . . 19\n      6.2  UV to hard X-ray study of Pictor A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22\n           6.2.1 Chandra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22\n           6.2.2 XMM-Newton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22\n           6.2.3 NuSTAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23\n           6.2.4 Image analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23\n                 XMM-Newton image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23\n                 NuSTAR image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23\n           6.2.5 Time variability analysis using Chandra data . . . . . . . . . . . . . . . . . . . . . . 24\n           6.2.6 X-ray Spectral analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25\n                 XMM-Newton spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25\n                 Chandra Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25\n                 NuSTAR Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28\n                 Broadband X-ray spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28\n           6.2.7 Low energy spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32\n           \nChapter 7. Disscusion 35\n      7.1  SED of Cygnus A hotspot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35\n           7.1.1 FIR Evidence of the cooling break . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35\n           7.1.2 Magnetic-field estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36\n                 Constraint from the cooling break frequency . . . . . . . . . . . . . . . . . . . . . . 36\n                 Constraint from the X-ray spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . 37\n                 Magnetic field determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39\n           7.1.3 Validity of the SSC scenario . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39\n      7.2  SED of Pictor A hotspot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41\n           7.2.1 Interpretation of the UV spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41\n      7.3  Origin of the X-ray from Pictor A hot spot . . . . . . . . . . . . . . . . . . . . . . . . . . . 41\n           7.3.1 Interpretation of the X-ray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41\n           7.3.2 Accelerated electron energy distribution . . . . . . . . . . . . . . . . . . . . . . . . 42\n           \nReference 45","subitem_description_type":"Other"}]},"item_113_description_25":{"attribute_name":"注記","attribute_value_mlt":[{"subitem_description":"指導教員 : 寺田幸功准教授","subitem_description_type":"Other"}]},"item_113_description_33":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"text","subitem_description_type":"Other"}]},"item_113_description_34":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_113_dissertation_number_19":{"attribute_name":"学位授与番号","attribute_value_mlt":[{"subitem_dissertationnumber":"甲第1238号"}]},"item_113_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24561/00019783","subitem_identifier_reg_type":"JaLC"}]},"item_113_publisher_11":{"attribute_name":"出版者名","attribute_value_mlt":[{"subitem_publisher":"埼玉大学大学院理工学研究科"}]},"item_113_publisher_12":{"attribute_name":"出版者名（別言語）","attribute_value_mlt":[{"subitem_publisher":"Graduate School of Science and Engineering, Saitama 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