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Masami Ouchi

national institutes of natural sciences (nins) - japan

76H-index
467Paper Count
2.1WCitation Count
Published Papers 242
Publication Date
An ultra-faint, chemically primitive galaxy forming in the reionization era
errNature
IF48.5
err2026-05-13
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PREAI
errKimihiko Nakajima; Masami Ouchi; Yuichi Harikane; Eros Vanzella; Yoshiaki Ono; Yuki Isobe; Moka Nishigaki; Takuji Tsujimoto; Fumitaka Nakamura; Yi Xu; Hiroya Umeda; Yechi Zhang
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Cosmic Himalayas in CROCODILE: Probing the Extreme Quasar Overdensities by Count-in-cells Analysis and Nearest-neighbor Distribution
err2026-04-20
err0
PREAI
errKuwayama, Yuto; Liang, Yongming; Nagamine, Kentaro; Oku, Yuri; Nishihama, Daisuke; Toyouchi, Daisuke; Fukushima, Keita; Yajima, Hidenobu; Park, Hyunbae; Ouchi, Masami
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Lyα Intensity Mapping in HETDEX: Galaxy-Lyα Intensity Cross-power Spectrum
err2026-03-03
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errOAAI
errMaja Lujan Niemeyer; Eiichiro Komatsu; José Luis Bernal; Chris Byrohl; Robin Ciardullo; Olivia Curtis; Daniel J. Farrow; Steven L. Finkelstein; Karl Gebhardt; Caryl Gronwall; Gary J. Hill; Matt J. Jarvis; Donghui Jeong; Erin Mentuch Cooper; Deeshani Mitra; Shiro Mukae; Julian B. Muñoz; Masami Ouchi; Shun Saito; Donald P. Schneider; Lutz Wisotzki
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Near-infrared Variability Detected in the Young Star-forming Dwarf Galaxy SBS 0335-052E
err2026-01-27
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errOAAI
errShun Hatano; Mitsuru Kokubo; Masami Ouchi; Kimihiko Nakajima; Toshihiro Kawaguchi; Satoshi Kikuta; Nozomu Tominaga; Yi Xu; Kuria Watanabe; Yuichi Harikane; Yuki Isobe; Akinori Matsumoto; Moka Nishigaki; Yoshiaki Ono; Masato Onodera; Yuma Sugahara; Hiroya Umeda; Yechi Zhang; Ryotaro Chiba; Takashi J. Moriya
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Probing the Cosmic Reionization History with JWST: Gunn–Peterson and Lyα Damping Wing Absorption at 4.5 < z < 13
err2026-01-15
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errOAAI
errHiroya Umeda; Masami Ouchi; Yuta Kageura; Yuichi Harikane; Minami Nakane; Tran Thi Thai; Kimihiko Nakajima
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Comprehensive JWST+ALMA Study on the Extended Lyα Emitters; Himiko; and CR7 at z ∼ 7: Blue Major Merger Systems in Stark Contrast to Submillimeter Galaxies
err2025-12-12
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errOAAI
errTomokazu Kiyota; Masami Ouchi; Yi Xu; Yurina Nakazato; Kenta Soga; Hidenobu Yajima; Seiji Fujimoto; Yuichi Harikane; Kimihiko Nakajima; Yoshiaki Ono; Dongsheng Sun; Haruka Kusakabe; Daniel Ceverino; Bunyo Hatsukade; Daisuke Iono; Kotaro Kohno; Kouichiro Nakanishi
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ALMA Lensing Cluster Survey: Physical Characterization of Near-infrared-dark Intrinsically Faint ALMA Sources at z = 2–4
err2025-08-07
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PREAI
errAkiyoshi Tsujita; Kotaro Kohno; Shuo Huang; Masamune Oguri; Ken-ichi Tadaki; Ian Smail; Hideki Umehata; Zhen-Kai Gao; Wei-Hao Wang; Fengwu Sun; Seiji Fujimoto; Tao Wang; Ryosuke Uematsu; Daniel Espada; Francesco Valentino; Yiping Ao; Franz E. Bauer; Bunyo Hatsukade; Fumi Egusa; Yuri Nishimura; Anton M. Koekemoer; Daniel Schaerer; Claudia Lagos; Miroslava Dessauges-Zavadsky; Gabriel Brammer; Karina Caputi; Eiichi Egami; Jorge González-López; Jean-Baptiste Jolly; Kirsten K. Knudsen; Vasily Kokorev; Georgios E. Magdis; Masami Ouchi; Sune Toft; John F. Wu; Adi Zitrin
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Census of Lyα Emission from ∼600 Galaxies at z=5-14: Evolution of the Lyα Luminosity Function and a Late Sharp Cosmic Reionization
err2025-05-15
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errOAAI
errKageura, Yuta; Ouchi, Masami; Nakane, Minami; Umeda, Hiroya; Harikane, Yuichi; Yoshiura, Shintaro; Nakajima, Kimihiko; Yajima, Hidenobu; Thai, Tran Thi
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Stellar- and AGN-driven Outflows in JWST Galaxies at z=3-9: More Frequent, Wider Opening Angles, and Mostly Bounded
err2025-05-08
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errOAAI
errXu, Yi; Ouchi, Masami; Nakajima, Kimihiko; Harikane, Yuichi; Isobe, Yuki; Ono, Yoshiaki; Umeda, Hiroya; Zhang, Yechi
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Chemical Universe Machine. I. Uncovering the Cosmic Evolution of Metals in the Galaxy-Interstellar Medium-Circumgalactic Medium Ecosystem
err2025-05-06
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errOAAI
errNishigaki, Moka; Behroozi, Peter; Ouchi, Masami; Guo, Hong; Somerville, Rachel S.; Gallazzi, Anna R.; Nakajima, Kimihiko; Watanabe, Kuria
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SILVERRUSH. XIV. Lyα Luminosity Functions and Angular Correlation Functions from 20,000 Lyα Emitters at z ∼ 2.2-7.3 from up to 24 deg2 HSC-SSP and CHORUS Surveys: Linking the Postreionization Epoch to the Heart of Reionization
err2025-03-18
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errOAAI
errUmeda, Hiroya; Ouchi, Masami; Kikuta, Satoshi; Harikane, Yuichi; Ono, Yoshiaki; Shibuya, Takatoshi; Inoue, Akio K.; Shimasaku, Kazuhiro; Liang, Yongming; Matsumoto, Akinori; Saito, Shun; Kusakabe, Haruka; Kageura, Yuta; Nakane, Minami
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The Physical Origin of Extreme Emission Line Galaxies at High Redshifts: Strong [O iii] Emission Lines Produced by Obscured Active Galactic Nuclei
err2025-03-12
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errOAAI
errZhu, Chenghao; Harikane, Yuichi; Ouchi, Masami; Ono, Yoshiaki; Onodera, Masato; Tang, Shenli; Isobe, Yuki; Matsuoka, Yoshiki; Kawaguchi, Toshihiro; Umeda, Hiroya; Nakajima, Kimihiko; Liang, Yongming; Xu, Yi; Zhang, Yechi; Sun, Dongsheng; Shimasaku, Kazuhiro; Greene, Jenny; Iwasawa, Kazushi; Kohno, Kotaro; Nagao, Tohru; Schulze, Andreas; Shibuya, Takatoshi; Hilmi, Miftahul; Schramm, Malte
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JWST, ALMA, and Keck Spectroscopic Constraints on the UV Luminosity Functions at z ∼ 7-14: Clumpiness and Compactness of the Brightest Galaxies in the Early Universe
err2025-02-07
err9
errOAAI
errHarikane, Yuichi; Inoue, Akio K.; Ellis, Richard S.; Ouchi, Masami; Nakazato, Yurina; Yoshida, Naoki; Ono, Yoshiaki; Sun, Fengwu; Sato, Riku A.; Ferrami, Giovanni; Fujimoto, Seiji; Kashikawa, Nobunari; Mcleod, Derek J.; Perez-Gonzalez, Pablo G.; Sawicki, Marcin; Sugahara, Yuma; Xu, Yi; Yamanaka, Satoshi; Carnall, Adam C.; Cullen, Fergus; Dunlop, James S.; Egami, Eiichi; Grogin, Norman; Isobe, Yuki; Koekemoer, Anton M.; Laporte, Nicolas; Lee, Chien-Hsiu; Magee, Dan; Matsuo, Hiroshi; Matsuoka, Yoshiki; Mawatari, Ken; Nakajima, Kimihiko; Nakane, Minami; Tamura, Yoichi; Umeda, Hiroya; Yanagisawa, Hiroto
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ALMA Lensing Cluster Survey: Deep 1.2 mm Number Counts and Infrared Luminosity Functions at z ≃ 1-8
err2024-11-27
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errOAAI
errFujimoto, Seiji; Kohno, Kotaro; Ouchi, Masami; Oguri, Masamune; Kokorev, Vasily; Brammer, Gabriel; Sun, Fengwu; Gonzalez-Lopez, Jorge; Bauer, Franz E.; Caminha, Gabriel B.; Hatsukade, Bunyo; Richard, Johan; Smail, Ian; Tsujita, Akiyoshi; Ueda, Yoshihiro; Uematsu, Ryosuke; Zitrin, Adi; Coe, Dan; Kneib, Jean-Paul; Postman, Marc; Umetsu, Keiichi; Lagos, Claudia del P.; Popping, Gergoe; Ao, Yiping; Bradley, Larry; Caputi, Karina; Dessauges-Zavadsky, Miroslava; Egami, Eiichi; Espada, Daniel; Ivison, R. J.; Jauzac, Mathilde; Knudsen, Kirsten K.; Koekemoer, Anton M.; Magdis, Georgios E.; Mahler, Guillaume; Munoz Arancibia, A. M.; Rawle, Timothy; Shimasaku, Kazuhiro; Toft, Sune; Umehata, Hideki; Valentino, Francesco; Wang, Tao; Wang, Wei-Hao
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Dynamics of a Galaxy at z > 10 Explored by JWST Integral Field Spectroscopy: Hints of Rotating Disk Suggesting Weak Feedback
err2024-11-19
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errOAAI
errXu, Yi; Ouchi, Masami; Yajima, Hidenobu; Fukushima, Hajime; Harikane, Yuichi; Isobe, Yuki; Nakajima, Kimihiko; Nakane, Minami; Ono, Yoshiaki; Umeda, Hiroya; Yanagisawa, Hiroto; Zhang, Yechi
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The MUSE eXtremely Deep Field: Detections of circumgalactic Si II* emission at z ≳ 2☆
err2024-11-19
err0
PREAI
errKusakabe, Haruka; Mauerhofer, Valentin; Verhamme, Anne; Garel, Thibault; Blaizot, Jeremy; Wisotzki, Lutz; Richard, Johan; Boogaard, Leindert A.; Leclercq, Floriane; Guo, Yucheng; Claeyssens, Adelaide; Contini, Thierry; Herenz, Edmund Christian; Kerutt, Josephine; Maseda, Michael V.; Michel-Dansac, Leo; Nanayakkara, Themiya; Ouchi, Masami; Pessa, Ismael; Schaye, Joop
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Low [O/Fe] Ratio in a Luminous Galaxy at the Early Cosmic Epoch (z > 10): Signature of Short Delay Time or Bright Hypernovae/Pair-instability Supernovae?
err2024-11-18
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errOAAI
errNakane, Minami; Ouchi, Masami; Nakajima, Kimihiko; Harikane, Yuichi; Tominaga, Nozomu; Takahashi, Koh; Kashino, Daichi; Yanagisawa, Hiroto; Watanabe, Kuria; Nomoto, Ken'ichi; Isobe, Yuki; Nishigaki, Moka; Ishigaki, Miho N.; Ono, Yoshiaki; Takeda, Yui
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MAMMOTH-Subaru. II. Diverse Populations of Circumgalactic Lyα Nebulae at Cosmic Noon
err2024-11-15
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errLi, Mingyu; Zhang, Haibin; Cai, Zheng; Liang, Yongming; Kashikawa, Nobunari; Ma, Ke; Fan, Xiaohui; Prochaska, J. Xavier; Emonts, Bjorn H. C.; Wang, Xin; Wu, Yunjing; Zhang, Shiwu; Li, Qiong; Johnson, Sean D.; Yue, Minghao; Arrigoni Battaia, Fabrizio; Cantalupo, Sebastiano; Hennawi, Joseph F.; Kikuta, Satoshi; Ning, Yuanhang; Ouchi, Masami; Shimakawa, Rhythm; Wang, Ben; Wang, Weichen; Zheng, Zheng; Zheng, Zhen-Ya
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Strong He i Emission Lines in High N/O Galaxies at z ∼ 6 Identified in JWST Spectra: High He/H Abundance Ratios or High Electron Densities?
err2024-10-16
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errOAAI
errYanagisawa, Hiroto; Ouchi, Masami; Watanabe, Kuria; Matsumoto, Akinori; Nakajima, Kimihiko; Yajima, Hidenobu; Nagamine, Kentaro; Takahashi, Koh; Nakane, Minami; Tominaga, Nozomu; Umeda, Hiroya; Fukushima, Hajime; Harikane, Yuichi; Isobe, Yuki; Ono, Yoshiaki; Xu, Yi; Zhang, Yechi
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Balmer Decrement Anomalies in Galaxies at z ∼ 6 Found by JWST Observations: Density-bounded Nebulae or Excited H i Clouds?
err2024-10-11
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errOAAI
errYanagisawa, Hiroto; Ouchi, Masami; Nakajima, Kimihiko; Yajima, Hidenobu; Umeda, Hiroya; Baba, Shunsuke; Nakagawa, Takao; Nakane, Minami; Matsumoto, Akinori; Ono, Yoshiaki; Harikane, Yuichi; Isobe, Yuki; Xu, Yi; Zhang, Yechi
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