Nagai Hiroshi

Affiliation and department：
Job title： Associate Professor
Other affiliations (1)：

Homepage URL (1)： http://www2.nao.ac.jp/~hiroshinagai/

Research field (1)： Astronomy

Research keywords (5)：活動銀河核 , ブラックホール降着流 , 相対論的ジェット , 大質量ブラックホール , 電波干渉計・VLBI

Research theme for competitive and other funds (8)：

2021 - 2024 Clarifying magnetic fields in AGN jets by radio and optical polarimetry together with VLBI images
2018 - 2021 銀河団からブラックホールに至る冷たいガスの流れとAGNの活動性の研究
2015 - 2019 Probing Black Hole Accretion in Low Luminosity AGNs using ALMA Polarimetry
2012 - 2017 Precise measurements of black holes for studies of active galactic nuclei
2012 - 2015 Development of new imaging tehchnique for sub-mm VLBI

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Papers (168)：

Minchul Kam, Jeffrey A. Hodgson, Jongho Park, Motoki Kino, Hiroshi Nagai, Sascha Trippe, Alexander Y. Wagner. Evolution of the Termination Region of the Parsec-scale Jet of 3C 84 Over the Past 20 yr. The Astrophysical Journal. 2024
Jongho Park, Motoki Kino, Hiroshi Nagai, Masanori Nakamura, Keiichi Asada, Minchul Kam, Jeffrey A. Hodgson. Observational evidence to support a dense ambient medium shaping the jet in 3C 84. Astronomy & Astrophysics. 2024
Takayuki J Hayashi, Akihiro Doi, Hiroshi Nagai. A Giant Metrewave Radio Telescope survey of radio-loud broad absorption line quasars. Monthly Notices of the Royal Astronomical Society. 2024
The Event Horizon Telescope Collaboration, Kazunori Akiyama, Antxon Alberdi, Walter Alef, Juan Carlos Algaba, Richard Anantua, Keiichi Asada, Rebecca Azulay, Uwe Bach, Anne-Kathrin Baczko, et al. First Sagittarius A* Event Horizon Telescope Results. VIII. Physical Interpretation of the Polarized Ring. The Astrophysical Journal Letters. 2024. 964. 2. L26-L26
The Event Horizon Telescope Collaboration, Kazunori Akiyama, Antxon Alberdi, Walter Alef, Juan Carlos Algaba, Richard Anantua, Keiichi Asada, Rebecca Azulay, Uwe Bach, Anne-Kathrin Baczko, et al. First Sagittarius A* Event Horizon Telescope Results. VII. Polarization of the Ring. The Astrophysical Journal Letters. 2024. 964. 2. L25-L25

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MISC (15)：

磯部直樹, 小山翔子, 紀基樹, 中川貴雄, 田代信, 田代信, 永井洋, PEARSON Chris. 電波銀河Pictor Aの西ホットスポットの遠赤外線超過の検出. 日本天文学会年会講演予稿集. 2018. 2018
紀基樹, 伊藤裕貴, 輪島清昭, 川勝望, ORIENTI M, 永井洋, 伊藤亮介. 電波銀河3C84のシェルにおけるガンマ線,宇宙線生成について. 日本天文学会年会講演予稿集. 2016. 2016. 176
Gabriele Giovannini, Monica Orienti, Tuomas Savolainen, Hiroshi Nagai, Marcello Giroletti, Kazuhiro Hada, Gabriele Bruni, Jeffrey Hodgson, Mareki Honma, Motoki Kino, et al. The Nuclear Structure of 3C84 with Space VLBI (RadioAstron) Observations. 2015
安藤亮, 河野孝太郎, 田村陽一, 泉拓磨, 梅畑豪紀, 永井洋, 徂徠和夫, 濤崎智佳. ALMA Calibrator Sourceを用いた銀河系内分子吸収線系の検出とその物理化学状態の考察. 日本天文学会年会講演予稿集. 2015. 2015
秋山永治, 三浦理絵, 新永浩子, 中里剛, 杉本香菜子, 川上申之介, 小杉城治, 永井洋, 立松健一. ALMAパイプラインの現状 3. 日本天文学会年会講演予稿集. 2015. 2015

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Professional career (1)：

Committee career (1)：

Awards (5)：

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