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YH

Yuichi Harikane

0000-0002-6047-430X
astro-ph.GAastro-ph.COastro-ph.HEastro-ph.IMastro-ph.SRastro-ph.EP

On Valency

published · living versions
W_s5n85pp4·v1 · currentpublished
Very Compact Dense Galaxy Overdensity with δ ~ 130 Identified at z ~ 8: Implications for Early Protocluster and Cluster-Core Formation
with Masafumi Ishigaki, Masami Ouchi
1 version

Preprints & journals

199 papers in the corpus · 2014–2026
PRISMS/U13151. A Glimpse into the Earliest Phases of Galaxy Formation through an Ultra-Faint System ≈\approx 500 Myr after the Big Bang2610.26560v1 · Pierluigi Rinaldi, Javier 'Alvarez-M'arquez, Alejandro Crespo G'omez et al.2026 · 0 citationsarXiv
Can Blue UV-Bright Galaxies Drive Reionization at Cosmic Dawn? An MUV=−19.6M_{\rm UV}=-19.6 Galaxy with fesc≈0.85f_{\rm esc}\approx0.85 at z=9.244z=9.2442610.24092v1 · Yunjing Wu, Sijia Cai, Yongda Zhu et al.2026 · 0 citationsarXiv
Too many or too bright? Status and perspectives in the study of the UV Luminosity Function at z>102610.12121v1 · A. Fontana, H. Atek, V. Bromm et al.2026 · 0 citationsarXiv
Galaxy Protoclusters as Drivers of Cosmic Reionization: II. Te-Based Metallicities of Lyman-{\alpha} Emitters2610.01811v2 · C. Moya-Sierralta, C. L. Martin, L. F. Barrientos et al.2026 · 0 citationsarXiv
DREAMS: Taking the Temperature of a Massive Galaxy at z ~ 112609.34827v1 · L. Parente, E. Vanzella, M. Messa et al.2026 · 0 citationsarXiv
SN Helios: A Multiply Imaged Type II Supernova Opening Time-Delay Cosmography beyond redshift of 32609.30440v2 · Seiji Fujimoto, Conor Larison, Justin D. R. Pierel et al.2026 · 0 citationsarXiv
Free-Free Radio Emission from Little Red Dots as a Probe of Ionized Gas2609.20913v1 · Takumi S. Tanaka, Kohei Inayoshi, Zu Yan et al.2026 · 0 citationsarXiv
PRISMS. GHZ1. A standard tale of galaxy evolution with atypical ionizing conditions at z=9.878z=9.8782609.14574v1 · Borja P'erez-D'iaz, Marco Castellano, Javier 'Alvarez-M'arquez et al.2026 · 0 citationsarXiv
The Roman eXtreme Deep Field (RXDF)2609.08145v1 · Haojing Yan, Anton M. Koekemoer, Yue Shen et al.2026 · 0 citationsarXiv
SERENADE III: Insight into the Origin of the High Dust Temperature and High [O III]/[C II] Ratio at z≳6z\gtrsim62608.26708v1 · Ikki Mitsuhashi, Yuichi Harikane, Hiddo S. B. Algera 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
ALMA observations of pre-JWST z ~ 10 galaxy candidates: A CO(J = 9-8) line from a ULIRG at z = 2.54 and revisit of the photometric redshifts with JWST photometry2608.12708v1 · Suzuka Arai, Yuma Sugahara, Akio K. Inoue 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
Gas-Phase Metallicity and Nitrogen Abundances in Low-Mass Galaxies Down to M⋆≃105.7 M⊙M_\star\simeq10^{5.7}\,M_\odot at z≃4.5z\simeq4.5--10.110.1 from JWST Lensing Cluster Surveys2607.15515v1 · Hiroya Umeda, Masami Ouchi, Kimihiko Nakajima et al.2026 · 0 citationsarXiv
VENUS: an ultra-faint galaxy hosting the metal-poor type II supernova at z=5.13z=5.13 Witnessing the initial metal enrichment with extremely frequent core-collapse supernovae?2607.14355v1 · Yoshihisa Asada, Seiji Fujimoto, Joseph F. V. Allingham et al.2026 · 0 citationsarXiv
FINER: development of the wideband millimeter-wave receiver system and preparations for first light on the Large Millimeter Telescope2607.03265v1 · Akio Taniguchi, Yoichi Tamura, Takeshi Sakai et al.2026 · 0 citationsarXiv
Euclid: Discovery of 31 new quasars at 6.6<z<7.86.6 < z < 7.82607.03432v1 · D. Yang, J. F. Hennawi, F. Guarneri et al.2026 · 2 citationsA&A, 711, A104 (2026)
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
GREX-PLUS Science Book v22606.05237v3 · GREX-PLUS Science Team: Shunsuke Baba, Sirio Belli, Pietro Benotto et al.2026 · 0 citationsarXiv
The UV Side of Little Red Dots: Red, Compact, and Iron-Enhanced Rest-UV Emission with a Strong Downturn around Lyα\alpha2606.03522v1 · Makoto Ando, Yuichi Harikane, Harley Katz et al.2026 · 0 citationsarXiv
Assessing the Impact of Source Confusion for GREX-PLUS based on Deep JWST NIRCam Imaging2605.17882v1 · Yoshiaki Ono, Akio K. Inoue, Yuma Sugahara 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
PRISMS. U37126, a very blue, ISM-naked starburst at z=10.255 with nearly 100% Lyman continuum escape fraction2602.02322v2 · R. Marques-Chaves, J. 'Alvarez-M'arquez, L. Colina et al.2026 · 1 citationarXiv
PRISMS. UNCOVER-26185, a metal-poor SFG at z=10.05 with no evidence for a X-ray-luminous AGN2602.02323v1 · J. 'Alvarez-M'arquez, L. Colina, A. Crespo-Gomez 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
A New Constraint on the Optical Depth from the Reionization History Independent of CMB Large-Scale E-Mode Polarization2601.09644v2 · Yuta Kageura, Masami Ouchi, Fumihiro Naokawa 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
A spectroscopically confirmed, strongly lensed, metal-poor Type II supernova at z = 5.132601.04156v2 · David A. Coulter, Conor Larison, Justin D. R. Pierel et al.2026 · 0 citationsarXiv
Spatially Resolved Physical Properties of Young Star Clusters and Star-forming Clumps in the Brightest z>6 Galaxy, the Strongly Lensed Cosmic Spear at z=6.22512.08054v2 · Abdurro'uf, Dan Coe, Tom Resseguier et al.2025 · 2 citationsarXiv
Little red dot variability over a century reveals black hole envelope via a giant Einstein cross2512.05180v1 · Zijian Zhang, Mingyu Li, Masamune Oguri et al.2025 · 2 citationsarXiv
A Black-Hole Envelope Interpretation for Cosmological Demographics of Little Red Dots2512.04208v1 · Hiroya Umeda, Kohei Inayoshi, Yuichi Harikane et al.2025 · 11 citationsarXiv
VENUS: When Red meets Blue -- A multiply imaged Little Red Dot with an apparent blue companion behind the galaxy cluster Abell 3832512.02117v2 · Miriam Golubchik, Lukas J. Furtak, Joseph F. V. Allingham et al.2025 · 3 citationsA&A 710, A226 (2026)
VENUS: A Strongly Lensed Clumpy Galaxy at z∼11−12z\sim11-12 behind the Galaxy Cluster MACS J0257.1-23252511.14483v3 · Minami Nakane, Vasily Kokorev, Seiji Fujimoto et al.2025 · 1 citationarXiv
RIOJA. The dusty outflows and density-complex interstellar medium in the N-enhanced lensed galaxy RXCJ2248-ID at z=6.12511.14658v2 · A. Crespo G'omez, Y. Tamura, L. Colina et al.2025 · 0 citationsarXiv
Euclid Quick Data Release (Q1): Hunting for luminous z > 6 galaxies in the Euclid Deep Fields -- forecasts and first bright detections2511.02926v2 · N. Allen, P. A. Oesch, R. A. A. Bowler et al.2025 · 0 citationsarXiv
Galaxy Protoclusters as Drivers of Cosmic Reionization: I. Bubble Overlap at Redshift z ~ 7 in LAGER-z7OD12510.13140v2 · Crystal L. Martin, Weida Hu, Isak G. B. Wold et al.2025 · 3 citationsarXiv
Discovery of a Little Red Dot candidate at z≳10z\gtrsim10 in COSMOS-Web based on MIRI-NIRCam selection2508.00057v2 · Takumi S. Tanaka, Hollis B. Akins, Yuichi Harikane et al.2025 · 1 citationarXiv
EMPRESS. XV. A New Determination of the Primordial Helium Abundance Suggesting a Moderately Low YPY_\mathrm{P} Value2506.24050v3 · Hiroto Yanagisawa, Masami Ouchi, Akinori Matsumoto et al.2025 · 0 citationsarXiv
Compact Ionized Gas Region Surrounded by Porous Neutral Gas in a Dusty Lyman Break Galaxy at Redshift z=8.312z=8.3122506.20734v1 · Masato Hagimoto, Yoichi Tamura, Akio K. Inoue et al.2025 · 3 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
SAPPHIRES: Extremely Metal-Poor Galaxy Candidates with 12+log(O/H)<7.012+{\rm log(O/H)}<7.0 at z∼5−7z\sim5-7 from Deep JWST/NIRCam Grism Observations2505.03873v1 · Tiger Yu-Yang Hsiao, Fengwu Sun, Xiaojing Lin et al.2025 · 4 citationsarXiv
Probing the Cosmic Reionization History with JWST: Gunn-Peterson and Lyα\alpha Damping Wing Absorption at 4.5<z<134.5 < z < 132504.04683v2 · Hiroya Umeda, Masami Ouchi, Yuta Kageura et al.2025 · 1 citationarXiv
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
Slitless Areal Pure-Parallel HIgh-Redshift Emission Survey (SAPPHIRES): Early Data Release of Deep JWST/NIRCam Images and Spectra in MACS J0416 Parallel Field2503.15587v1 · Fengwu Sun, Yoshinobu Fudamoto, Xiaojing Lin et al.2025 · 3 citationsarXiv
SAPPHIRES: A Galaxy Over-Density in the Heart of Cosmic Reionization at z=8.47z=8.472503.15597v1 · Yoshinobu Fudamoto, Jakob M. Helton, Xiaojing Lin et al.2025 · 4 citationsarXiv
UNIONS: The Ultraviolet Near-Infrared Optical Northern Survey2503.13783v1 · Stephen Gwyn, Alan W. McConnachie, Jean-Charles Cuillandre et al.2025 · 24 citationsarXiv
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
Career total: 306 works. 199 are in this corpus.Showing the 50 most recent.

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