6.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Academia SinicaTW1.4k papers
- National Astronomical Observatory of JapanJP910 papers
- The University of TokyoJP744 papers
- Center for Astrophysics Harvard & SmithsonianUS671 papers
- Centre National de la Recherche ScientifiqueFR668 papers
- European Southern ObservatoryCL490 papers
- California Institute of TechnologyUS470 papers
- The Graduate University for Advanced Studies, SOKENDAIJP427 papers
- Kavli Institute for the Physics and Mathematics of the UniverseJP425 papers
- Jet Propulsion LaboratoryUS360 papers
- Max Planck Institute for AstronomyDE342 papers
- Leiden UniversityNL340 papers
36 papers · 2 filters
Probing Vainsthein-screening gravity with galaxy clusters using internal kinematics and strong and weak lensing
Lorenzo Pizzuti, Ippocratis D. Saltas, Keiichi Umetsu +1
We use high-precision combined strong/weak lensing and kinematics measurements of the total mass profiles of the observed galaxy clusters MACS~J1206.2-0847 and Abell~S1063, to cons…
Unveiling the internal structure of Hercules supercluster
R. Monteiro-Oliveira, D. F. Morell, V. M. Sampaio +2
We have investigated the structure of the Hercules supercluster (SCL160) based on data originally extracted from the Sloan Digital Sky Survey SDSS-DR7. We have traced the mass dist…
Observational search for primordial chirality violations using galaxy angular momenta
Pavel Motloch, Ue-Li Pen, Hao-Ran Yu
We search for evidence of primordial chirality violation in the galaxy data from the Sloan Digital Sky Survey by comparing how strongly directions of galaxy angular momenta correla…
Correlating galaxy shapes and initial conditions: an observational study
Pavel Motloch, Ue-Li Pen, Hao-Ran Yu
Using data from the Sloan Digital Sky Survey we study correlations between directions of galaxy angular momenta determined from images of spiral galaxies and various observables de…
HSC-XXL : Baryon budget of the 136 XXL Groups and Clusters
Daichi Akino, Dominique Eckert, Nobuhiro Okabe +17
We present our determination of the baryon budget for an X-ray-selected XXL sample of 136 galaxy groups and clusters spanning nearly two orders of magnitude in mass ($M_{500}\sim 1…
Distinguishing between CDM and gravity models using halo ellipticity correlations in simulations
Yao-Tsung Chuang, Teppei Okumura, Masato Shirasaki
There is a growing interest in utilizing intrinsic alignment (IA) of galaxy shapes as a geometric and dynamical probe of cosmology. In this paper we present the first measurements…
Multi-component DHOST analysis in galaxy clusters
Enrico Laudato, Vincenzo Salzano, Keiichi Umetsu
Extended Theories of Gravity with additional scalar degrees of freedom have recently acquired increasing interest due to the presence of a screening mechanism that allows suppressi…
Galaxy cluster strong lensing cosmography: cosmological constraints from a sample of regular galaxy clusters
G. B. Caminha, S. H. Suyu, C. Grillo +1
Cluster strong lensing cosmography is a promising probe of the background geometry of the Universe and several studies have emerged, thanks to the increased quality of observations…
Strong lensing in UNIONS: Toward a pipeline from discovery to modeling
E. Savary, K. Rojas, M. Maus +16
We present a search for galaxy-scale strong gravitational lenses in the initial 2 500 square degrees of the Canada-France Imaging Survey (CFIS). We designed a convolutional neural…
Tightening geometric and dynamical constraints on dark energy and gravity: galaxy clustering, intrinsic alignment and kinetic Sunyaev-Zel'dovich effect
Teppei Okumura, Atsushi Taruya
Conventionally, in galaxy surveys, cosmological constraints on the growth and expansion history of the universe have been obtained from the measurements of redshift-space distortio…
Mitigating the impact of fiber assignment on the measurement of galaxy-lensing cross correlation
Ryu Makiya, Tomomi Sunayama
We examine the impact of fiber assignment on the measurement of galaxy clustering and its cross correlation with weak lensing fields. Unlike the past spectroscopic galaxy surveys s…
TDCOSMO VIII: Cosmological distance measurements in light of the mass-sheet degeneracy -- forecasts from strong lensing and IFU stellar kinematics
A. Yıldırım, S. H. Suyu, G. C. -F. Chen +1
Time-delay strong lensing (TDSL) is a powerful probe of the current expansion rate of the Universe. However, in light of the discrepancies between early and late-time cosmological…
The XXL survey: XLVI. Forward cosmological analysis of the C1 cluster sample
Christian Garrel, Marguerite Pierre, Patrick Valageas +15
We present the forward cosmological analysis of an selected sample of galaxy clusters out to a redshift of unity. Following our previous 2018 study based on the dn/dz quantit…
First Evidence of Intrinsic Alignments of Red Galaxies at : Cross-correlation between CFHTLenS and FastSound Samples
Motonari Tonegawa, Teppei Okumura
We report the first evidence for intrinsic alignment (IA) of red galaxies at . We measure the gravitational shear-intrinsic ellipticity (GI) cross-correlation function at $z\s…
Likelihood-free Forward Modeling for Cluster Weak Lensing and Cosmology
Sut-Ieng Tam, Keiichi Umetsu, Adam Amara
Likelihood-free inference provides a rigorous approach to preform Bayesian analysis using forward simulations only. The main advantage of likelihood-free methods is its ability to…
The eROSITA Final Equatorial-Depth Survey (eFEDS): A complete census of X-ray properties of Subaru Hyper Suprime-Cam weak lensing shear-selected clusters in the eFEDS footprint
Miriam E. Ramos-Ceja, M. Oguri, S. Miyazaki +23
The eFEDS survey is a proof-of-concept mini-survey designed to demonstrate the survey science capabilities of SRG/eROSITA. It covers an area of 140 square degrees where 542 galaxy…
ALMA Measurement of 10 kpc-scale Lensing Power Spectra towards the Lensed Quasar MG J0414+0534
Kaiki Taro Inoue, Takeo Minezaki, Satoki Matsushita +1
The lensing power spectra for gravitational potential, astrometric shift, and convergence perturbations are powerful probes to investigate dark matter structures on small scales. W…
The Three Hundred Project: dissecting the fundamental plane of galaxy clusters up to
Luis A. Díaz-García, Keiichi Umetsu, Elena Rasia +2
We perform a systematic study of the recently discovered fundamental plane of galaxy clusters (CFP) using ~250 simulated clusters from The Three Hundred project, focusing on the st…
HOLISMOKES -- VII. Time-delay measurement of strongly lensed Type Ia supernovae using machine learning
S. Huber, S. H. Suyu, D. Ghoshdastidar +7
The Hubble constant () is one of the fundamental parameters in cosmology, but there is a heated debate around the 4 tension between the local Cepheid distance ladder and…
The eROSITA Final Equatorial-Depth Survey (eFEDS): Catalog of galaxy clusters and groups
A. Liu, E. Bulbul, V. Ghirardini +31
The eROSITA Final Equatorial-Depth Survey has been carried out during the PV phase of the SRG/eROSITA telescope and completed in November 2019. This survey is designed to provide t…
SHARP VIII: J0924+0219 lens mass distribution and time-delay prediction through adaptive-optics imaging
Geoff C. -F. Chen, Christopher D. Fassnacht, Sherry H. Suyu +6
Strongly lensed quasars can provide measurements of the Hubble constant () independent of any other methods. One of the key ingredients is exquisite high-resolution imaging…
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 Survey
I-Non Chiu, Vittorio Ghirardini, Ang Liu +18
We present the first weak-lensing mass calibration and X-ray scaling relations of galaxy clusters and groups selected in the Final Equatorial Depth Survey (eFEDS) observe…
The eROSITA Final Equatorial-Depth Survey (eFEDS): Optical confirmation, redshifts, and properties of the cluster and group catalog
M. Klein, M. Oguri, J. J. Mohr +19
The eROSITA Final Equatorial-Depth Survey (eFEDS), covering ~140 square degrees, was performed as part of the performance verification phase of the eROSITA telescope on board of th…
Power spectrum of primordial perturbations during ultra-slow-roll inflation with back reaction effects
Shu-Lin Cheng, Da-Shin Lee, Kin-Wang Ng
We develop a nonperturbative method through the Hartree factorization to examine the quantum fluctuation effects on the single-field inflationary models in a spatially flat FRW cos…