YAJIMA Hidenobu

ヤジマヒデノブ | YAJIMA Hidenobu

Affiliation and department：
Job title： Associate Professor
Homepage URL (1)： https://www2.ccs.tsukuba.ac.jp/Astro/Members/yajima/

Research field (1)： Astronomy

Research keywords (7)：アストロバイオロジー , Massive Blackholes , Cosmic Reionization , Galaxy Formation , Numerical Simulations , 医療診断 , Astronomy

Research theme for competitive and other funds (14)：

2022 - 2027 The nature of the first galaxies and the origin of supermassive black holes as revealed by the star cluster formation process in the early universe
2021 - 2026 高精度原始銀河団シミュレーションによる銀河形成と宇宙再電離研究の新展開
2021 - 2025 Revealing the Formation Process of Massive Galaxies Through High Resolution Submm Observations
2021 - 2024 宇宙物理輻射輸送計算で拓く新しい生体医用光学
2018 - 2023 Revealing the physical processes that accelerate and decelerate galaxy formation

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Papers (79)：

Hiroto Yanagisawa, Masami Ouchi, Kimihiko Nakajima, Hidenobu Yajima, Hiroya Umeda, Shunsuke Baba, Takao Nakagawa, Minami Nakane, Akinori Matsumoto, Yoshiaki Ono, et al. Balmer Decrement Anomalies in Galaxies at z ∼ 6 Found by JWST Observations: Density-bounded Nebulae or Excited H i Clouds?. The Astrophysical Journal. 2024. 974. 2. 180-180
Hajime Fukushima, Hidenobu Yajima. Impacts of stellar wind and supernovae on star cluster formation: Origins of extremely high N/O ratios and multiple stellar populations. Publications of the Astronomical Society of Japan. 2024
Erika Ogata, Ken Ohsuga, Hajime Fukushima, Hidenobu Yajima. Three-dimensional radiation hydrodynamics simulations of wandering intermediate-mass black holes considering the anisotropic radiation and dust sublimation. Monthly Notices of the Royal Astronomical Society. 2024. 528. 2. 2588-2599
Yi Xu, Masami Ouchi, Yuki Isobe, Kimihiko Nakajima, Shinobu Ozaki, Nicolas F. Bouché, John H. Wise, Eric Emsellem, Haruka Kusakabe, Takashi Hattori, et al. EMPRESS. XII. Statistics on the Dynamics and Gas Mass Fraction of Extremely Metal-poor Galaxies. The Astrophysical Journal. 2024. 961. 1. 49-49
Isobe, Yuki, Ouchi, Masami, Tominaga, Nozomu, Watanabe, Kuria, Nakajima, Kimihiko, Umeda, Hiroya, Yajima, Hidenobu, Harikane, Yuichi, Fukushima, Hajime, Xu, Yi, et al. JWST Identification of Extremely Low C/N Galaxies with [N/O] ≳ 0.5 at z ∼ 6-10 Evidencing the Early CNO-cycle Enrichment and a Connection with Globular Cluster Formation. ASTROPHYSICAL JOURNAL. 2023. 959. 2

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MISC (1)：

Hidenobu Yajima. ライマンアルファ輝線輻射輸送計算で探る銀河形成. 天文月報. 2015. 108. 12. 834-841

Books (3)：

すばる望遠鏡とTMTで結ぶ新たな宇宙像
2020
Ultraviolet Radiation Transfer in Dusty Primordial Galaxies
2010
3次元輻射輸送計算による原始銀河からの電離光子脱出過程の研究
2007

Lectures and oral presentations (213)：

機械学習を用いたエディントンテンソルの推定
(日本天文学会2024年春季年会)
大質量星団形成における星風による金属量進化
(日本天文学会2024年春季年会)
JWST で見つかった、炭素と酸素に対し窒素の豊富な z ∼ 6 - 10 銀河
(日本天文学会2024年春季年会)
Physics Informed Neural Networkを用いた陰解法の初期値推定
(日本天文学会2024年春季年会)
機械学習を用いたエディントンテンソルの推定
(ブラックホール大研究会 ~星質量から超巨大ブラックホールまで~)

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Education (2)：

2007 - 2010 University of Tsukuba Graduate School of Pure and Applied Sciences Physics
2005 - 2007 University of Tsukuba Graduate School of Pure and Applied Sciences Physics

Professional career (3)：

Ph. D in Physics (University of Tsukuba)
Master in Physics (University of Tsukuba)
学士 (中央大学)

Work history (5)：

2018/06 - 現在 University of Tsukuba Center for Computational Science Associate Professor
2015/04 - 2018/05 Tohoku University Frontier Research Institute for Interdisciplinary Sciences Assistant Professor
2014/11 - 2015/03 Osaka University Earth and Space Science Assistant Professor
2013/06 - 2014/11 University of Edinburgh Institute for Astronomy Postdoctral researcher
2010/04 - 2013/06 Pennsylvania State University Department of Astronomy and Astrophysics Postdoctral researcher

Awards (2)：

2023/02 - Best Faculty Member 2021
2019/11 - 筑波大学筑波大学若手教員奨励賞

Association Membership(s) (2)：

日本天文学会 , Optical Society of Japan

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