KU
Keiichi Umetsu
astro-ph.COastro-ph.GAastro-phastro-ph.IMastro-ph.HEgr-qcastro-ph.EPastro-ph.SRhep-phhep-th
On Valency
published · living versionsW_ggnhn9y4·v1 · currentpublished
CLASH: Complete Lensing Analysis of the Largest Cosmic Lens MACS J0717.5+3745 and Surrounding Structures
with Elinor Medezinski, Mario Nonino, Julian Merten, Adi Zitrin +33
1 version
W_hr3ds4a2·v1published
Preprints & journals
198 papers in the corpus · 1999–2026JWST evidence for a sharp "Cosmic Daybreak" at z = 152609.28257v2 · Jiashuo Zhang, Tom Broadhurst, Tzihong Chiueh et al.2026 · 0 citationsarXiv
Generating the wide sequence of Diffuse Galaxies with de Broglie waves of Dark Matter2609.11510v3 · Jiashuo Zhang, Tom Broadhurst, Alvaro Pozo et al.2026 · 0 citationsarXiv
Why Azimuthal Averaging Works in Halo Lensing: Symmetry and Power Counting for Nonlinear Shear and Magnification2609.08825v2 · Keiichi Umetsu (ASIAA)2026 · 0 citationsarXiv
Weak-lensing Shear-Selected Galaxy Clusters from the Hyper Suprime-Cam Subaru Strategic Program: III. A precision cosmological sample enabled by optical confirmation2608.02755v2 · I-Non Chiu, Kai-Feng Chen, Masamune Oguri et al.2026 · 0 citationsarXiv
LoVoCCS. III. Third Generation Pipeline & The Hercules Supercluster2607.16417v1 · Anthony M. Englert, Shenming Fu, Ian Dell'Antonio et al.2026 · 0 citationsarXiv
Strong Stellar Diffusion from Wave DM Cosmological Simulation and Potential Unified Origin for dSphs, UFGs, and UDGs2606.30078v1 · A. Pozo, T. Broadhurst, J. Zhang et al.2026 · 0 citationsarXiv
CHEX-MATE: AMALGAM weak-lensing analysis of 41 Planck Sunyaev-Zel'dovich-selected galaxy clusters2606.24142v3 · Keiichi Umetsu, Raphael Gavazzi, Mauro Sereno et al.2026 · 0 citationsarXiv
CLASH-VLT: The Fifth Force in Chameleon Gravity from Joint Lensing and Kinematics Cluster Mass Profiles2604.23631v1 · Lorenzo Pizzuti, Federico Rivano, Keiichi Umetsu et al.2026 · 0 citationsUniverse 2026, 12(5), 124
Simulation-Based Cosmological Mass Calibration of XXL Galaxy Clusters using HSC Weak Lensing2602.11989v1 · Sut-Ieng Tam, Keiichi Umetsu, Adam Amara et al.2026 · 0 citationsarXiv
An azimuthally resolved study of sloshing cold fronts in three nearby galaxy clusters2601.14392v1 · I-Hsuan Li, Shutaro Ueda, I-Non Chiu et al.2026 · 0 citationsarXiv
Cosmological constraints on nonphantom dynamical dark energy with DESI Data Release 2 Baryon Acoustic Oscillations: A 3+ lensing anomaly2509.26144v2 · Shouvik Roy Choudhury, Teppei Okumura, Keiichi Umetsu2025 · 27 citations2025 ApJL 994 L26
CLASH-VLT: Constraining deviation from GR with the mass profiles of nine massive galaxy clusters2509.16317v1 · L. Pizzuti, A. Biviano, K. Umetsu et al.2025 · 2 citationsarXiv
CHEX-MATE: Cluster Multi-Probes in Three Dimensions (CLUMP-3D) II. Combined Gas and Dark Matter Analysis from X-ray, SZE, and WL2507.10857v1 · Adriana Gavidia, Junhan Kim, Jack Sayers et al.2025 · 1 citationA&A 710, A40 (2026)
Infalling ultra-faint dwarfs as emissaries of the Axiverse2506.16915v2 · A. Pozo, T. Broadhurst, H. N. Luu et al.2025 · 0 citationsA&A 704, A34 (2025)
GNHeII J1236+6215: A He II $\lambda$1640 emitting and potentially LyC leaking galaxy at = 2.9803 unveiled through JWST & Keck observations2506.06831v1 · Chayan Mondal, Kanak Saha, Anshuman Borgohain et al.2025 · 0 citationsarXiv
Galaxy cluster count cosmology with simulation-based inference2506.05457v1 · M.Regamey, D.Eckert, R.Seppi et al.2025 · 2 citationsA&A 708, A260 (2026)
Cluster Lensing Mass Inversion (CLUMI+): Combining Dynamics and Weak Lensing around Galaxy Clusters2505.04694v2 · Keiichi Umetsu, Michele Pizzardo, Antonaldo Diaferio et al.2025 · 2 citationsarXiv
The SRG/eROSITA All-Sky Survey. The Weak-Lensing Mass Calibration and the Stellar Mass-to-Halo Mass Relation from the Hyper Suprime-Cam Subaru Strategic Program2504.01076v2 · I-Non Chiu, Vittorio Ghirardini, Sebastian Grandis et al.2025 · 4 citationsA&A 704, A110 (2025)
CHEX-MATE: Multi-probe analysis of Abell 16892503.22316v1 · L. Chappuis, D. Eckert, M. Sereno et al.2025 · 4 citationsA&A 699, A141 (2025)
The SRG/eROSITA All-Sky Survey : Subaru/HSC-SSP weak-lensing mass measurements for the eRASS1 Galaxy Clusters2503.09952v2 · Nobuhiro Okabe, Thomas H. Reiprich, Sebastian Grandis et al.2025 · 12 citationsA&A 700, A46 (2025)
Radio emission from a massive node of the cosmic web. A discovery powered by machine learning2502.04823v1 · C. Stuardi, A. Botteon, M. Sereno et al.2025 · 3 citationsA&A 695, L16 (2025)
Using a minimally parametrised SHAM to constrain the link between dark matter and galaxies2501.06169v1 · F. L. Davidson, D. Bacon A. Amara, K. Koyama et al.2025 · 0 citationsarXiv
The thermodynamic structure and large-scale structure filament in MACS J0717.5+37452411.08103v3 · J. P. Breuer, N. Werner, T.Plsek et al.2024 · 0 citationsA&A 703, A231 (2025)
CHEX-MATE: the intracluster medium entropy distribution in the gravity-dominated regime2410.11947v1 · G. Riva, G. W. Pratt, M. Rossetti et al.2024 · 8 citationsA&A 691, A340 (2024)
LoVoCCS. II. Weak Lensing Mass Distributions, Red-Sequence Galaxy Distributions, and Their Alignment with the Brightest Cluster Galaxy in 58 Nearby X-ray-Luminous Galaxy Clusters2402.10337v2 · Shenming Fu, Ian Dell'Antonio, Zacharias Escalante et al.2024 · 5 citationsarXiv
CHEX-MATE: CLUster Multi-Probes in Three Dimensions (CLUMP-3D), I. Gas Analysis Method using X-ray and Sunyaev-Zel'dovich Effect Data2307.04794v2 · Junhan Kim, Jack Sayers, Mauro Sereno et al.2023 · 12 citationsA&A 686, A97 (2024)
Beyond the Ultra-deep Frontier Fields And Legacy Observations (BUFFALO): a high-resolution strong + weak-lensing view of Abell 3702307.03778v1 · Anna Niemiec, Mathilde Jauzac, Dominique Eckert et al.2023 · 21 citationsarXiv
BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 12304.09222v1 · Jose M. Diego, Sung Kei Li, Ashish K. Meena et al.2023 · 16 citationsarXiv
ALMA Lensing Cluster Survey: Deep 1.2 mm Number Counts and Infrared Luminosity Functions at 2303.01658v4 · Seiji Fujimoto, Kotaro Kohno, Masami Ouchi et al.2023 · 4 citationsarXiv
Exploring the stellar populations of backsplash galaxies2301.01776v1 · Ignacio Ferreras, Asmus Bohm, Keiichi Umetsu et al.2023 · 3 citationsarXiv
Testing the Collisionless Nature of Dark Matter with the Radial Acceleration Relation in Galaxy Clusters2207.03506v3 · Sut-Ieng Tam, Keiichi Umetsu, Andrew Robertson et al.2022 · 6 citationsApJ, 953, 169 (2023)
MUSUBI (MegaCam Ultra-deep Survey: -Band Imaging)-Data for the COSMOS and SXDS Fields2205.11546v1 · Wei-Hao Wang, Sebastien Foucaud, Bau-Ching Hsieh et al.2022 · 4 citationsarXiv
Testing non-local gravity by clusters of galaxies2205.03216v2 · Filippo Bouche, Salvatore Capozziello, Vincenzo Salzano et al.2022 · 17 citationsarXiv
Line-of-sight Elongation and Hydrostatic Mass Bias of the Frontier Fields Galaxy Cluster Abell 3702203.03647v2 · Keiichi Umetsu (ASIAA), Shutaro Ueda (ASIAA), Bau-Ching Hsieh (ASIAA) et al.2022 · 9 citationsarXiv
Star Formation Properties of Sloan Digital Sky Survey BOSS Void Galaxies in the Hyper Suprime-Cam Survey2201.03196v1 · Hung-Yu Jian, Lihwai Lin, Bau-Ching Hsieh et al.2022 · 8 citationsarXiv
Probing Vainsthein-screening gravity with galaxy clusters using internal kinematics and strong and weak lensing2112.12139v1 · Lorenzo Pizzuti, Ippocratis D. Saltas, Keiichi Umetsu et al.2021 · 12 citationsarXiv
HSC-XXL : Baryon budget of the 136 XXL Groups and Clusters2111.10080v2 · Daichi Akino, Dominique Eckert, Nobuhiro Okabe et al.2021 · 1 citationarXiv
Multi-component DHOST analysis in galaxy clusters2110.11019v1 · Enrico Laudato, Vincenzo Salzano, Keiichi Umetsu2021 · 13 citationsarXiv
Likelihood-free Forward Modeling for Cluster Weak Lensing and Cosmology2109.09741v2 · Sut-Ieng Tam, Keiichi Umetsu, Adam Amara2021 · 12 citationsarXiv
SkyPy: A package for modelling the Universe2109.06172v1 · Adam Amara, Lucia F. de la Bella, Simon Birrer et al.2021 · 15 citationsarXiv
CLASH-VLT: Abell~S1063. Cluster assembly history and spectroscopic catalogue2109.03305v2 · A. Mercurio, P. Rosati, A. Biviano et al.2021 · 46 citationsA&A 656, A147 (2021)
The Three Hundred Project: dissecting the fundamental plane of galaxy clusters up to 2108.13498v2 · Luis A. D'iaz-Garc'ia, Keiichi Umetsu, Elena Rasia et al.2021 · 4 citationsarXiv
The eROSITA Final Equatorial-Depth Survey (eFEDS): X-ray Observable-to-Mass-and-Redshift Relations of Galaxy Clusters and Groups with Weak-Lensing Mass Calibration from the Hyper Suprime-Cam Subaru Strategic Program Survey2107.05652v3 · I-Non Chiu, Vittorio Ghirardini, Ang Liu et al.2021 · 78 citationsA&A 661, A11 (2022)
Systematic Perturbations of the Thermodynamic Properties in Cool Cores of HIFLUGCS Galaxy Clusters2106.07168v2 · Shutaro Ueda, Keiichi Umetsu, FanLam Ng et al.2021 · 10 citationsarXiv
Understanding X-ray and optical selection of galaxy clusters: A comparison of the XXL and CAMIRA cluster catalogues obtained in the common XXL-HSC SSP area2103.13434v1 · J. P. Willis, M. Oguri, M. E. Ramos-Ceja et al.2021 · 15 citationsarXiv
The Lack of Non-Thermal Motions in Galaxy Cluster Cores2102.06324v3 · Jack Sayers, Mauro Sereno, Stefano Ettori et al.2021 · 24 citationsarXiv
The Cluster HEritage project with XMM-Newton: Mass Assembly and Thermodynamics at the Endpoint of structure formation. I. Programme overview2010.11972v2 · M. Arnaud, S. Ettori, G.W. Pratt et al.2020 · 98 citationsA&A 650, A104 (2021)
The XXL survey: XLII. Detection and characterization of the galaxy population of distant galaxy clusters in the XXL-N/VIDEO field: A tale of variety2009.04049v1 · A. Trudeau, C. Garrel, J. Willis et al.2020 · 8 citationsA&A 642, A124 (2020)
The miniJPAS survey: a preview of the Universe in 56 colours2007.01910v2 · S. Bonoli, A. Mar'in-Franch, J. Varela et al.2020 · 119 citationsA&A 653, A31 (2021)
A clustering-based self-calibration of the richness-to-mass relation of CAMIRA galaxy clusters out to in the Hyper Suprime-Cam survey2005.13564v3 · I-Non Chiu, Teppei Okumura, Masamune Oguri et al.2020 · 20 citationsarXiv
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