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YO

Yoshiaki Ono

0000-0001-9011-7605
astro-ph.GAastro-ph.COastro-ph.IMastro-phastro-ph.HEastro-ph.SR

On Valency

published · living versions
W_unu28bt7·v1 · currentpublished
Why a Multi-Cycle Treasury Program is Essential to Maximize JWST's Scientific Contributions to Galaxy Formation
with Genesis Community, Alice Shapley, Steven L. Finkelstein, Rachel S. Somerville +416
1 version

Preprints & journals

111 papers in the corpus · 2008–2026
H I Absorbers as Beacons of Hidden Structure at z∼3z \sim 3: Multi-Component, Metal-Rich Absorption System near a Protocluster2609.04349v1 · Kentaro Koretomo, Nobunari Kashikawa, Toru Misawa et al.2026 · 0 citationsarXiv
ATLAS. IV. A JWST+MUSE Demographic Study of Lyα\alpha Profiles in Little Red Dots2608.14534v1 · Yuta Kageura, Masami Ouchi, Hiroto Yanagisawa et al.2026 · 0 citationsarXiv
ATLAS. III. Dust Around Little Red Dots: Hydrogen Line Ratios beyond Dust-free Non-Case B Models2608.10832v2 · Tomokazu Kiyota, Masami Ouchi, Hiroto Yanagisawa et al.2026 · 0 citationsarXiv
ATLAS. II. Extremely High Incidence of Balmer Line Absorption with Predominant Blueshifts in LRDs: Statistical Insights through Comparison with Type 1 AGNs2607.26269v1 · Hiroto Yanagisawa, Masami Ouchi, Tomokazu Kiyota et al.2026 · 0 citationsarXiv
ATLAS. I. A Scaling Relation of LRDs between Broad Hα\alpha and Bolometric Luminosities: Enhanced Broad Hα\alpha Emission Relative to Low-zz Type 1 AGN2606.09726v2 · Hiroto Yanagisawa, Masami Ouchi, Tomokazu Kiyota et al.2026 · 0 citationsarXiv
DREAMS. JWST Spectroscopy of a z=8.3z=8.3 Galaxy with an ALMA Dust Continuum Detection: Early Dust, Very High TdustT_{\rm dust}, and a Multi-wavelength [OIII] Ratio Discrepancy2605.14922v1 · Kana Takechi, Masami Ouchi, Kimihiko Nakajima et al.2026 · 0 citationsarXiv
An ultra-faint, chemically primitive galaxy forming in the reionization era.42129526 · Nakajima, Kimihiko, Ouchi, Masami, Harikane, Yuichi et al.2026 · 17 citationsNature. 2026;653(8114):363-367
Chemical Abundance Ratios of Nitrogen Rich Galaxies Identified at z∼6−12z\sim 6-12: Observational Demographics and Models2603.21570v2 · Kuria Watanabe, Masami Ouchi, Kimihiko Nakajima et al.2026 · 0 citationsarXiv
A UV-Luminous Galaxy at z=11 with Surprisingly Weak Star Formation Activity2601.21833v1 · Yuichi Harikane, Pablo G. Perez-Gonzalez, Javier Alvarez-Marquez et al.2026 · 0 citationsarXiv
VENUS: Two Faint Little Red Dots Separated by ∼70 pc\sim70\,\mathrm{pc} Hidden in a Single Lensed Galaxy at z∼7z\sim72601.06015v1 · Hiroto Yanagisawa, Masami Ouchi, Miriam Golubchik et al.2026 · 2 citationsarXiv
JWST & ALMA Joint Analysis with [OII]$\lambda\lambda3726,3729,[OIII]3726,3729, [OIII]\lambda4363,[OIII]884363, [OIII]88\mum,and[OIII]52m, and [OIII]52\mu$m: Multi-Zone Evolution of Electron Densities at z∼0−14\mathbf{z\sim0-14} and Its Impact on Metallicity Measurements2505.09186v2 · Yuichi Harikane, Ryan L. Sanders, Richard Ellis et al.2025 · 2 citationsarXiv
Comprehensive JWST+ALMA Study on the Extended Lyα\alpha Emitters, Himiko and CR7 at z∼7z\sim 7: Blue Major Merger Systems in Stark Contrast to Submillimeter Galaxies2504.03156v2 · Tomokazu Kiyota, Masami Ouchi, Yi Xu et al.2025 · 1 citationarXiv
Fe Abundances of Early Galaxies at z=9−12z=9-12 Derived with Deep JWST Spectra2503.11457v3 · Minami Nakane, Masami Ouchi, Kimihiko Nakajima et al.2025 · 12 citationsarXiv
Morphological Demographics of Galaxies at z∼10−16z\sim 10-16: Log-Normal Size Distribution and Exponential Profiles Consistent with the Disk Formation Scenario2502.08885v2 · Yoshiaki Ono, Masami Ouchi, Yuichi Harikane et al.2025 · 1 citationarXiv
EMPRESS. X. Spatially resolved mass-metallicity relation in extremely metal-poor galaxies: evidence of episodic star-formation fueled by a metal-poor gas infall2412.04541v1 · Kimihiko Nakajima, Masami Ouchi, Yuki Isobe et al.2024 · 0 citationsarXiv
A Galaxy with an Extremely Blue UV Slope β=−3\beta=-3 at z=9.25z=9.25 Identified by JWST Spectroscopy: Evidence for a Weak Nebular Continuum and Efficient Ionizing Photon Escape?2411.19893v3 · Hiroto Yanagisawa, Masami Ouchi, Kimihiko Nakajima et al.2024 · 1 citationarXiv
A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). X. The Massive and Passive Nature of Radio Galaxies at z∼4z \sim 42411.19009v1 · Yuta Yamamoto, Tohru Nagao, Takuji Yamashita et al.2024 · 0 citationsarXiv
The Physical Origin of Extreme Emission Line Galaxies at High redshifts: Strong {\sc [Oiii]} Emission Lines Produced by Obscured AGNs2410.12198v2 · Chenghao Zhu, Yuichi Harikane, Masami Ouchi et al.2024 · 0 citationsarXiv
Low [O/Fe] Ratio in a Luminous Galaxy at the Early Cosmic Epoch (z>10z>10): Signature of Short Delay Time or Bright Hypernovae/Pair-Instability Supernovae?2407.14470v3 · Minami Nakane, Masami Ouchi, Kimihiko Nakajima et al.2024 · 8 citationsarXiv
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 Universe2406.18352v2 · Yuichi Harikane, Akio K. Inoue, Richard S. Ellis et al.2024 · 102 citationsarXiv
Strong He I Emission Lines in High N/O Galaxies at z∼6z \sim 6 Identified in JWST Spectra: High He/H Abundance Ratios or High Electron Densities?2405.01823v2 · Hiroto Yanagisawa, Masami Ouchi, Kuria Watanabe et al.2024 · 2 citationsarXiv
Dynamics of a Galaxy at z > 10 Explored by JWST Integral Field Spectroscopy: Hints of Rotating Disk Suggesting Weak Feedback2404.16963v3 · Yi Xu, Masami Ouchi, Hidenobu Yajima et al.2024 · 17 citationsarXiv
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
Balmer Decrement Anomalies in Galaxies at z ~ 6 Found by JWST Observations: Density-Bounded Nebulae or Excited H I Clouds?2403.20118v2 · Hiroto Yanagisawa, Masami Ouchi, Kimihiko Nakajima et al.2024 · 22 citationsarXiv
Primordial Rotating Disk Composed of $\geq$15 Dense Star-Forming Clumps at Cosmic Dawn2402.18543v3 · S. Fujimoto, M. Ouchi, K. Kohno et al.2024 · 20 citationsarXiv
Outshining in the Spatially Resolved Analysis of a Strongly-Lensed Galaxy at z=6.072 with JWST NIRCam2402.17875v1 · C. Gim'enez-Arteaga, S. Fujimoto, F. Valentino et al.2024 · 38 citationsarXiv
Lyα\alpha Emission at z=7−13z=7-13: Clear Lyα\alpha Equivalent Width Evolution Indicating the Late Cosmic Reionization History2312.06804v3 · Minami Nakane, Masami Ouchi, Kimihiko Nakajima et al.2023 · 5 citationsarXiv
SERENADE II: An ALMA Multi-Band Dust-Continuum Analysis of 28 Galaxies at 5<z<85<z<8 and the Physical Origin of the Dust Temperature Evolution2311.16857v1 · Ikki Mitsuhashi, Yuichi Harikane, Franz E. Bauer et al.2023 · 2 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
Stellar- and AGN-Driven Outflows in JWST Galaxies at z=3-9: More Frequent, Wider Opening Angles, and Mostly Bounded2310.06614v4 · Yi Xu, Masami Ouchi, Kimihiko Nakajima et al.2023 · 23 citationsarXiv
Census for the Rest-frame Optical and UV Morphologies of Galaxies at z=4−10z=4-10: First Phase of Inside-Out Galaxy Formation2309.02790v2 · Yoshiaki Ono, Yuichi Harikane, Masami Ouchi et al.2023 · 23 citationsarXiv
JWST Identification of Extremely Low C/N Galaxies with [N/O]≳0.5\gtrsim 0.5 at z∼6−10z\sim 6-10 Evidencing the Early CNO-Cycle Enrichment and a Connection with Globular Cluster Formation2307.00710v3 · Yuki Isobe, Masami Ouchi, Nozomu Tominaga et al.2023 · 3 citationsarXiv
Statistics for Galaxy Outflows at z∼6−9z\sim 6-9 with Imaging and Spectroscopic Signatures Identified with JWST/NIRCam and NIRSpec Data2306.07940v3 · Yechi Zhang, Masami Ouchi, Kimihiko Nakajima et al.2023 · 1 citationarXiv
JWST Measurements of Neutral Hydrogen Fractions and Ionized Bubble Sizes at z=7−12z=7-12 Obtained with Lyα\alpha Damping Wing Absorptions in 27 Bright Continuum Galaxies2306.00487v3 · Hiroya Umeda, Masami Ouchi, Kimihiko Nakajima et al.2023 · 100 citationsarXiv
Unbiased surveys of dust-enshrouded galaxies using ALMA2305.15126v1 · K. Kohno, S. Fujimoto, A. Tsujita et al.2023 · 4 citationsarXiv
The Spitzer Coverage of HSC-Deep with IRAC for Z studies (SHIRAZ) I: IRAC mosaics2305.13363v1 · Marianna Annunziatella, Anna Sajina, Mauro Stefanon et al.2023 · 10 citationsarXiv
Quasar Luminosity Function at z = 72305.11225v1 · Yoshiki Matsuoka, Masafusa Onoue, Kazushi Iwasawa et al.2023 · 66 citationsarXiv
SILVERRUSH. XIII. A Catalog of 20,567 Lyα\alpha Emitters at z=2−7z=2-7 Identified in the Full-depth Data of the Subaru/HSC-SSP and CHORUS Surveys2305.08921v2 · Satoshi Kikuta, Masami Ouchi, Takatoshi Shibuya et al.2023 · 20 citationsarXiv
EMPRESS. XIII. Chemical Enrichments of Young Galaxies Near and Far at z ~ 0 and 4-10: Fe/O, Ar/O, S/O, and N/O Measurements with Chemical Evolution Model Comparisons2305.02078v4 · Kuria Watanabe, Masami Ouchi, Kimihiko Nakajima et al.2023 · 0 citationsarXiv
EMPRESS. XIV. Strong High Ionization Lines of Young Galaxies at z=0−8z=0-8: Ionizing Spectra Consistent with the Intermediate Mass Black Holes with MBH∼103−106 M⊙M_{\rm BH}\sim 10^3-10^6\ M_\odot2305.02189v2 · Shun Hatano, Masami Ouchi, Hiroya Umeda et al.2023 · 1 citationarXiv
Pure Spectroscopic Constraints on UV Luminosity Functions and Cosmic Star Formation History From 25 Galaxies at zspec=8.61−13.20z_\mathrm{spec}=8.61-13.20 Confirmed with JWST/NIRSpec2304.06658v4 · Yuichi Harikane, Kimihiko Nakajima, Masami Ouchi et al.2023 · 16 citationsarXiv
Near-infrared Variability Detected in the Young Star-Forming Dwarf Galaxy SBS 0335-052E2304.03726v3 · Shun Hatano, Mitsuru Kokubo, Masami Ouchi et al.2023 · 3 citationsarXiv
EMPRESS. XII. Statistics on the Dynamics and Gas Mass Fraction of Extremely-Metal Poor Galaxies2303.12467v2 · Yi Xu, Masami Ouchi, Yuki Isobe et al.2023 · 8 citationsThe Astrophysical Journal, Volume 961, Number 1, January 2024, Page 49-53
A JWST/NIRSpec First Census of Broad-Line AGNs at z=4-7: Detection of 10 Faint AGNs with M_BH~10^6-10^8 M_sun and Their Host Galaxy Properties2303.11946v3 · Yuichi Harikane, Yechi Zhang, Kimihiko Nakajima et al.2023 · 24 citationsarXiv
The Stellar Mass - Black Hole Mass Relation at z∼2z\sim2 Down to MBH∼107M⊙\mathcal{M}_\mathrm{BH}\sim10^7 M_\odot Determined by HETDEX2303.02929v1 · Yechi Zhang, Masami Ouchi, Karl Gebhardt et al.2023 · 19 citationsarXiv
EMPRESS. XI. SDSS and JWST Search for Local and z~4-5 Extremely Metal-Poor Galaxies (EMPGs): Clustering and Chemical Properties of Local EMPGs2302.03158v2 · Moka Nishigaki, Masami Ouchi, Kimihiko Nakajima et al.2023 · 14 citationsarXiv
JWST Census for the Mass-Metallicity Star-Formation Relations at z=4-10 with the Self-Consistent Flux Calibration and the Proper Metallicity Calibrators2301.12825v2 · Kimihiko Nakajima, Masami Ouchi, Yuki Isobe et al.2023 · 24 citationsarXiv
Redshift Evolution of the Electron Density in the ISM at z∼0−9z\sim 0-9 Uncovered with JWST/NIRSpec Spectra and Line-Spread Function Determinations2301.06811v2 · Yuki Isobe, Masami Ouchi, Kimihiko Nakajima et al.2023 · 5 citationsarXiv
Cosmological-Scale Lyman-alpha Forest Absorption Around Galaxies and AGN Probed with the HETDEX and SDSS Spectroscopic Data2301.05100v2 · Dongsheng Sun, Ken Mawatari, Masami Ouchi et al.2023 · 2 citationsarXiv
Photometric IGM tomography with Subaru/HSC: the large-scale structure of Lyα\alpha emitters and IGM transmission in the COSMOS field at z∼5z\sim52301.00373v2 · Koki Kakiichi, Joseph F. Hennawi, Yoshiaki Ono et al.2023 · 5 citationsarXiv
Career total: 160 works. 111 are in this corpus.Showing the 50 most recent.

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