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J-GLOBAL ID:201801000485079015   Update date: Feb. 11, 2025

Ichikawa Kohei

イチカワ コウヘイ | Ichikawa Kohei
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Affiliation and department:
Job title: Associate Professor
Homepage URL  (1): https://motigomeman.wordpress.com/
Research field  (1): Astronomy
Research keywords  (1): supermassive black holes
Research theme for competitive and other funds  (5):
  • 2020 - 2023 Rapid supermassive black hole growth revealed by multi-wavelength surveys
  • 2018 - 2021 Revealing the close environment of supermassive black holes using the moon
  • 2016 - 2019 新たに見つかった活動銀河核種族から暴く銀河と中心ブラックホールの共進化
  • 2015 - 2017 赤外線とX線の両波長観測から探る新しい活動銀河核種族の解明
  • 2012 - 2015 赤外・X線による埋もれた活動銀河の観測から探る超巨大ブラックホールと銀河の共進化
Papers (111):
  • Xiaoyang Chen, Masayuki Akiyama, Kohei Ichikawa, Yoshiki Toba, Toshihiro Kawaguchi, Takuma Izumi, Toshiki Saito, Daisuke Iono, Masatoshi Imanishi, Kianhong Lee, et al. Implication of Galaxy-scale Negative Feedback by One of the Most Powerful Multiphase Outflows in a Hyperluminous Infrared Galaxy at Intermediate Redshift. The Astrophysical Journal. 2025. 979. 1. 32-32
  • Yuta Yamamoto, Tohru Nagao, Takuji Yamashita, Hisakazu Uchiyama, Mariko Kubo, Yoshiki Toba, Yuichi Harikane, Kohei Ichikawa, Masaru Kajisawa, Akatoki Noboriguchi, et al. A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). X. The Massive and Passive Nature of Radio Galaxies at z ∼ 4. The Astrophysical Journal. 2024. 978. 1. 102-102
  • M. Bierschenk, C. Ricci, M. J. Temple, S. Satyapal, J. Cann, Y. Xie, Y. Diaz, K. Ichikawa, M. J. Koss, F. E. Bauer, et al. BASS. XLI. The Correlation between Mid-infrared Emission Lines and Active Galactic Nuclei Emission. Astrophysical Journal. 2024. 976. 2
  • Kohei Inayoshi, Kohei Ichikawa. Birth of Rapidly Spinning, Overmassive Black Holes in the Early Universe. Astrophysical Journal Letters. 2024. 973. 2
  • Kianhong Lee, Masayuki Akiyama, Kotaro Kohno, Daisuke Iono, Masatoshi Imanishi, Bunyo Hatsukade, Hideki Umehata, Tohru Nagao, Yoshiki Toba, Xiaoyang Chen, et al. Ongoing and Fossil Large-scale Outflows Detected in a High-redshift Radio Galaxy: [C ii] Observations of TN J0924-2201 at z = 5.174. Astrophysical Journal. 2024. 972. 1
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MISC (6):
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Books (2):
  • ngVLA-J memo series
    2021
  • SPICAサイエンス検討会最終報告書
Lectures and oral presentations  (38):
  • Radio galaxy catalog in the Subaru/HSC Joint catalog field
    (Tracing the SMBH growth: outlook beyond the HSC-SSP, and future collaborations 2022)
  • 歴史史料で探る過去の天文現象
    (第9回東北大学若手アンサンブルワークショップ 2022)
  • Recent observational progress on AGN studies
    (IGM Galaxy workshop 2022 2022)
  • Rapidly growing supermassive black holes in extremely radio-loud galaxies
    (IAU General Assembly IAU Symposium 373: Resolving the Rise and Fall of Star Formation in Galaxies 2022)
  • Rapidly growing supermassive black holes in extremely radio-loud galaxies
    (IAU General Assembly Focused Meeting 1: Physics of relativistic jets on all scales 2022)
more...
Education (2):
  • 2010 - 2015 Kyoto University Department of Astronomy
  • 2006 - 2010 Kyoto University Faculty of Science
Professional career (1):
  • 博士 (理学) (京都大学)
Work history (8):
  • 2023/09 - 2026/08 Waseda University Faculty of Science and Engineering Associate professor
  • 2023/04 - 2023/08 Tohoku University Frontier Research Institute for Interdisciplinary Sciences/Astronomical Institute Associate professor
  • 2018/04 - 2023/03 Tohoku University Frontier research institute/Astronomical Institute Assistant Professor
  • 2021/03 - 2022/03 Max Planck Institute for extraterrestrial Physics Visiting Researcher
  • 2020/08 - 2020/11 Parental leave
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Committee career (5):
  • 2023/08 - 現在 NAOJ/Subaru telescope Subaru Telescope Time Allocation Committee
  • 2018/04 - 現在 Thirty Meter Telescope International Science Definition Team (ISDT) core member
  • 2018/04 - 現在 members TMT ISDT
  • 2019/06 - 2023/05 天文月報 編集委員
  • 2012 - 2012 日本天文学会 評議員
Awards (6):
  • 2022/11 - 東北大学 若手アンサンブルワークショップ講演賞
  • 2022/05 - Tohoku University Distinguished Researcher at Tohoku University
  • 2022/05 - 21st Intelligent Cosmos Young Researcher Award
  • 2022/04 - 文部科学省 令和4年度 科学技術分野の文部科学大臣表彰 若手科学者賞
  • 2021/06 - MARCEL GROSSMANN Meeting MARCEL GROSSMANN AWARDS
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Association Membership(s) (4):
International Astronomical Union (IAU) ,  American Astronomical Society ,  SPinACH (SPecialists in Astronomy, Classics, and History) ,  THE ASTRONOMICAL SOCIETY OF JAPAN
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