KI
Kei Ito
astro-ph.GAastro-ph.COastro-ph.IMhep-exphysics.ins-detastro-ph.SRhep-phmath.DSmath.OA
On Valency
published · living versionsW_gcmbzx94·v1 · currentpublished
On the importance of medium-resolution continuum spectroscopy for JWST's extragalactic legacy
with Adam C. Carnall, Ho-Hin Leung, Struan D. Stevenson, Elizabeth Taylor +79
1 version
W_unu28bt7·v1published
Preprints & journals
54 papers in the corpus · 2016–2026Anisotropic quenching beyond and its implications for preprocessing around high-redshift galaxy clusters2606.23790v1 · Makoto Ando, Kazuhiro Shimasaku, Kei Ito et al.2026 · 0 citationsarXiv
Unveiling the population of massive quenched galaxies at in the COLIBRE simulations - II. The role of AGN feedback and environment on their emergence2605.31052v2 · 'Angel Chandro-G'omez, Claudia del P. Lagos, Chris Power et al.2026 · 0 citationsMon Not R Astron Soc (2026)
DeepDive: Simultaneous Formation of Massive Quiescent Galaxies in High-Redshift Galaxy Overdensities2604.21007v2 · Takumi Kakimoto, Masayuki Tanaka, Kei Ito et al.2026 · 1 citationarXiv
The role of small-scale environments in the quenching of massive galaxies at 2604.11942v2 · Takumi Kakimoto, Masayuki Tanaka, Makoto Ando et al.2026 · 0 citationsarXiv
There and back again? Neutral outflows in z~3.5 quiescent galaxies2602.17767v2 · Pengpei Zhu, Kei Ito, Francesco Valentino et al.2026 · 2 citationsA&A, 712, A169 (2026)
DeepDive: Tracing the early quenching pathways of massive quiescent galaxies at from their star-formation histories and chemical abundances2602.02485v1 · Massissilia L. Hamadouche, Katherine E. Whitaker, Francesco Valentino et al.2026 · 1 citationarXiv
Dynamical properties and star formation history of a low-mass quenched galaxy at Cosmic Noon2601.01722v1 · K. Ito, F. Valentino, W.M. Baker et al.2026 · 1 citationA&A 710, A122 (2026)
Cosmic Vine: High abundance of massive galaxies and dark matter halos in a forming cluster at z=3.442510.23549v2 · Nikolaj B. Sillassen, Shuowen Jin, Georgios E. Magdis et al.2025 · 3 citationsarXiv
Double Trouble: Two spectroscopically confirmed low-mass quiescent galaxies at z>5 in overdensities2509.09761v2 · William M. Baker, Kei Ito, Francesco Valentino et al.2025 · 10 citationsarXiv
Discovery of a Little Red Dot candidate at in COSMOS-Web based on MIRI-NIRCam selection2508.00057v2 · Takumi S. Tanaka, Hollis B. Akins, Yuichi Harikane et al.2025 · 1 citationarXiv
DeepDive: A deep dive into the physics of the first massive quiescent galaxies in the Universe2506.22642v2 · K. Ito, F. Valentino, G. Brammer et al.2025 · 4 citationsarXiv
Exploring over 700 massive quiescent galaxies at z = 2-7: Demographics and stellar mass functions2506.04119v3 · William M. Baker, Francesco Valentino, Claudia del P. Lagos et al.2025 · 26 citationsA&A 702, A270 (2025)
DAWN JWST Archive: Morphology from profile fitting of over 340 000 galaxies in major fields2505.21622v2 · Aur'elien Genin, Marko Shuntov, Gabe Brammer et al.2025 · 17 citationsA&A 699, A343 (2025)
A merging pair of massive quiescent galaxies at in the Cosmic Vine2503.01953v1 · K. Ito, F. Valentino, M. Farcy et al.2025 · 18 citationsA&A 697, A111 (2025)
Gas outflows in two recently quenched galaxies at z = 4 and 72503.01990v3 · F. Valentino, K.E. Heintz, G. Brammer et al.2025 · 36 citationsA&A 699, A358 (2025)
Predicting Ly Emission from Distant Galaxies with Neural Network Architecture2412.14676v1 · Takehiro Yoshioka, Nobunari Kashikawa, Yoshihiro Takeda et al.2024 · 0 citationsarXiv
Hidden in Pixels. I. Discovery of dual "little red dots" indicates excess clustering on kilo-parsec scales2412.14246v3 · Takumi S. Tanaka, John D. Silverman, Kazuhiro Shimasaku et al.2024 · 4 citationsarXiv
Mining for Protoclusters at from Photometric Datasets with Deep Learning2411.11956v1 · Yoshihiro Takeda, Nobunari Kashikawa, Kei Ito et al.2024 · 0 citationsarXiv
Galaxy Size and Mass Build-up in the First 2 Gyrs of Cosmic History from Multi-Wavelength JWST NIRCam Imaging2410.16354v1 · Natalie Allen, Pascal A. Oesch, Sune Toft et al.2024 · 39 citationsA&A 698, A30 (2025)
JWST/NIRSpec spectroscopy of intermediate-mass quiescent galaxies at 2410.08745v1 · Riku A. Sato, Akio K. Inoue, Yuichi Harikane et al.2024 · 11 citationsarXiv
A Post-Starburst Pathway for the Formation of Massive Galaxies and Black Holes at z>62409.07113v2 · Masafusa Onoue, Xuheng Ding, John D. Silverman et al.2024 · 25 citationsarXiv
Black hole mass of a quiescent galaxy hosting a Type 1 AGN at z=2.09: Implications for black hole - galaxy co-evolution and AGN quenching at high redshift2408.08492v2 · Kei Ito, Takumi S. Tanaka, Kazuhiro Shimasaku et al.2024 · 5 citationsMNRAS, 538, 1501 (2025)
Galaxy properties from the outskirts to the core of a protocluster at z=3.6992404.15910v1 · Jun Toshikawa, Stijn Wuyts, Nobunari Kashikawa et al.2024 · 0 citationsarXiv
Cosmic Himalayas: The Highest Quasar Density Peak Identified in a 10,000 deg Sky with Spatial Discrepancies between Galaxies, Quasars, and IGM HI2404.15963v2 · Yongming Liang, Masami Ouchi, Dongsheng Sun et al.2024 · 2 citationsarXiv
X-ray stacking reveals average SMBH accretion properties of star-forming galaxies and their cosmic evolution over 4 <~ z <~ 72312.13651v1 · Suin Matsui, Kazuhiro Shimasaku, Kei Ito et al.2023 · 2 citationsMNRAS, Volume 529, Issue 2, April 2024, Pages 926-940
A proto-cluster of massive quiescent galaxies at z=42311.11569v1 · Masayuki Tanaka, Masato Onodera, Rhythm Shimakawa et al.2023 · 32 citationsarXiv
Remarkably Compact Quiescent Candidates at in JWST-CEERS2311.05394v2 · Lillian Wright, Katherine E. Whitaker, John R. Weaver et al.2023 · 30 citationsarXiv
An enhanced abundance of bright galaxies in protocluster candidates at z~3-52310.08525v1 · Jun Toshikawa, Stijn Wuyts, Nobunari Kashikawa et al.2023 · 18 citationsarXiv
GALAXY CRUISE: Deep Insights into Interacting Galaxies in the Local Universe2309.14710v1 · Masayuki Tanaka, Michitaro Koike, Sei'ichiro Naito et al.2023 · 21 citationsarXiv
GALAXY CRUISE: Spiral and ring classifications for bright galaxies at z=0.01-0.32309.14830v2 · Rhythm Shimakawa, Masayuki Tanaka, Kei Ito et al.2023 · 7 citationsarXiv
A massive quiescent galaxy in a group environment at 2308.15011v2 · Takumi Kakimoto, Masayuki Tanaka, Masato Onodera et al.2023 · 47 citationsarXiv
HINOTORI I: The Nature of Rejuvenation Galaxies2307.14235v1 · Takumi S.Tanaka, Kazuhiro Shimasaku, Sandro Tacchella et al.2023 · 12 citationsarXiv
Size - Stellar Mass Relation and Morphology of Quiescent Galaxies at in Public Fields2307.06994v2 · Kei Ito, Francesco Valentino, Gabriel Brammer et al.2023 · 4 citationsarXiv
Subaru High- Exploration of Low-Luminosity Quasars (SHELLQs). XVIII. The Dark Matter Halo Mass of Quasars at 2307.02531v1 · Junya Arita, Nobunari Kashikawa, Yoshiki Matsuoka et al.2023 · 0 citationsarXiv
Cartan subalgebras of C*-algebras associated with complex dynamical systems2303.14860v5 · Kei Ito2023 · 0 citationsarXiv
An Atlas of Color-selected Quiescent Galaxies at in Public Fields2302.10936v1 · Francesco Valentino, Gabriel Brammer, Katriona M. L. Gould et al.2023 · 215 citationsarXiv
COSMOS2020: Discovery of a protocluster of massive quiescent galaxies at 2301.08845v1 · Kei Ito, Masayuki Tanaka, Francesco Valentino et al.2023 · 51 citationsarXiv
A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). IX. The Most Overdense Region at z~5 Inhabited by a Massive Radio Galaxy2208.14632v1 · Hisakazu Uchiyama, Takuji Yamashita, Tohru Nagao et al.2022 · 6 citationsarXiv
Detection of anisotropic satellite quenching in galaxy clusters up to 2209.00015v2 · Makoto Ando, Kazuhiro Shimasaku, Kei Ito2022 · 12 citationsarXiv
The physical origin for spatially large scatter of IGM opacity at the end of reionization: the IGM Ly opacity-galaxy density relation2207.05098v1 · Rikako Ishimoto, Nobunari Kashikawa, Daichi Kashino et al.2022 · 18 citationsarXiv
COSMOS2020: Ubiquitous AGN Activity of Massive Quiescent Galaxies at Revealed by X-ray and Radio Stacking2203.04322v1 · Kei Ito, Masayuki Tanaka, Takamitsu Miyaji et al.2022 · 36 citationsarXiv
CHORUS IV: Mapping the Spatially Inhomogeneous Cosmic Reionization with Subaru HSC2201.07261v1 · Takehiro Yoshioka, Nobunari Kashikawa, Akio K. Inoue et al.2022 · 13 citationsarXiv
A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VI. Distant Filamentary Structures Pointed by High-z Radio Galaxies at z~42112.01684v1 · Hisakazu Uchiyama, Takuji Yamashita, Jun Toshikawa et al.2021 · 13 citationsarXiv
Third Data Release of the Hyper Suprime-Cam Subaru Strategic Program2108.13045v1 · Hiroaki Aihara, Yusra AlSayyad, Makoto Ando et al.2021 · 360 citationsarXiv
Interrelation of the environment of Ly emitters and massive galaxies at 2105.01670v1 · Kei Ito, Nobunari Kashikawa, Masayuki Tanaka et al.2021 · 15 citationsarXiv
Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). XI. Proximity Zone Analysis for Faint Quasar Spectra at z~62009.06648v1 · Rikako Ishimoto, Nobunari Kashikawa, Masafusa Onoue et al.2020 · 23 citationsarXiv
Design and Performance of a Silicon Tungsten Calorimeter Prototype Module and the Associated Readout1912.11115v2 · T. Awes, C.L. Britton, T. Chujo et al.2019 · 5 citationsNIM A 988 (2021) 164796
Evaluation of Gadolinium's Action on Water Cherenkov Detector Systems with EGADS1908.11532v2 · Ll. Marti, M. Ikeda, Y. Kato et al.2019 · 56 citationsarXiv
Second Data Release of the Hyper Suprime-Cam Subaru Strategic Program1905.12221v2 · Hiroaki Aihara, Yusra AlSayyad, Makoto Ando et al.2019 · 515 citationsarXiv
Suppression of Low-mass Galaxy Formation around Quasars at z~2-31811.03662v1 · H.Uchiyama, N.Kashikawa, R. Overzier et al.2018 · 16 citationsarXiv
Career total: 136 works. 54 are in this corpus.Showing the 50 most recent.
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