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
26 papers · 2 filters
Wide-angle effects on galaxy ellipticity correlations
Maresuke Shiraishi, Atsushi Taruya, Teppei Okumura +1
We show an efficient way to compute wide-angle or all-sky statistics of galaxy intrinsic alignment in three-dimensional configuration space. For this purpose, we expand the two-poi…
TDCOSMO VI: Distance Measurements in Time-delay Cosmography under the Mass-sheet transformation
Geoff C. -F. Chen, Christopher D. Fassnacht, Sherry H. Suyu +3
Time-delay cosmography with gravitationally lensed quasars plays an important role in anchoring the absolute distance scale and hence measuring the Hubble constant, , indepe…
Cosmological simulation in tides: power spectra and halo shape responses, and shape assembly bias
Kazuyuki Akitsu, Yin Li, Teppei Okumura
The well-developed separate universe technique enables accurate calibration of the response of any observable to an isotropic long-wavelength density fluctuation. The large-scale e…
Empirical test for relativistic kinetic theories based on the Sunyaev-Zel'dovich effect
Sandor M. Molnar, Joseph Godfrey
We propose a new method to determine the electron velocity (EV) distribution function in the intracluster gas (ICG) in clusters of galaxies based on the frequency dependence of the…
The XXL survey: XLII. Detection and characterization of the galaxy population of distant galaxy clusters in the XXL-N/VIDEO field: A tale of variety
A. Trudeau, C. Garrel, J. Willis +16
Context. Distant galaxy clusters provide an effective laboratory in which to study galaxy evolution in dense environments and at early cosmic times. Aims. We aim to identify distan…
Minimum variance estimation of statistical anisotropy via galaxy survey
Maresuke Shiraishi, Teppei Okumura, Kazuyuki Akitsu
We consider the benefits of measuring cosmic statistical anisotropy from redshift-space correlators of the galaxy number density fluctuation and the peculiar velocity field without…
Standard candles and sirens rescue
Aniket Agrawal, Teppei Okumura, Toshifumi Futamase
We show that future observations of binary neutron star systems with electromagnetic counterparts together with the traditional probes of low- and high-redshift Type Ia supernovae…
The miniJPAS survey: a preview of the Universe in 56 colours
S. Bonoli, A. Marín-Franch, J. Varela +166
The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will soon start to scan thousands of square degrees of the northern extragalactic sky with a unique…
TDCOSMO IV: Hierarchical time-delay cosmography -- joint inference of the Hubble constant and galaxy density profiles
S. Birrer, A. J. Shajib, A. Galan +24
The H0LiCOW collaboration inferred via gravitational lensing time delays a Hubble constant km s, describing deflector mass density pro…
Cluster-galaxy weak lensing
Keiichi Umetsu
Weak gravitational lensing of background galaxies provides a direct probe of the projected matter distribution in and around galaxy clusters. Here we present a self-contained pedag…
New measures to test modified gravity cosmologies
Jiro Matsumoto, Teppei Okumura, Misao Sasaki
The observed accelerated expansion of the Universe may be explained by dark energy or the breakdown of general relativity (GR) on cosmological scales. When the latter case, a modif…
TDCOSMO II: 6 new time delays in lensed quasars from high-cadence monitoring at the MPIA 2.2m telescope
M. Millon, F. Courbin, V. Bonvin +25
We present six new time-delay measurements obtained from -band monitoring data acquired at the Max Planck Institute for Astrophysics (MPIA) 2.2 m telescope at La Silla observa…
A clustering-based self-calibration of the richness-to-mass relation of CAMIRA galaxy clusters out to in the Hyper Suprime-Cam survey
I-Non Chiu, Teppei Okumura, Masamune Oguri +3
We perform a self-calibration of the richness-to-mass (-) relation of CAMIRA galaxy clusters with richness at redshift by modeling redshift-space tw…
Phase-Space Spectral Line De-confusion in Intensity Mapping
Yun-Ting Cheng, Tzu-Ching Chang, James J. Bock
Line intensity mapping (LIM) is a promising tool to efficiently probe the three-dimensional large-scale structure by mapping the aggregate emission of a spectral line from all sour…
Minimum variance estimation of galaxy power spectrum in redshift space
Maresuke Shiraishi, Teppei Okumura, Naonori S. Sugiyama +1
We study an efficient way to enhance the measurability of the galaxy density and/or velocity power spectrum in redshift space. It is based on the angular decomposition with the Tri…
The XXL Survey XLIV. Sunyaev-Zel'dovich mapping of a low-mass cluster at z~1: a multi-wavelength approach
M. Ricci, R. Adam, D. Eckert +62
In this paper, we present resolved observations of the Sunyaev-Zel'dovich (SZ) effect, obtained with the NIKA2 camera, towards the cluster of galaxies XLSSC102, a relatively low-ma…
Weak lensing clusters from HSC survey first-year data: Mitigating the dilution effect of foreground and cluster member galaxies
Takashi Hamana, Masato Shirasaki, Yen-Ting Lin
We present a weak lensing cluster search using Hyper Suprime-Cam Subaru Strategic Program (HSC survey) first-year data. We pay special attention to the dilution effect of cluster m…
Subaru medium-resolution spectra of a QSO at z=6.62: Three reionization tests
Ting-Yi Lu, Tomotsugu Goto, Ji-Jia Tang +9
Investigating the Gunn-Peterson trough of high redshift quasars (QSOs) is a powerful way to reveal the cosmic reionization. As one of such attempts, we perform a series of analyses…
CLASH-VLT: a full dynamical reconstruction of the mass profile of Abell S1063 from 1 kpc out to the virial radius
B. Sartoris, A. Biviano, P. Rosati +8
Context: The shape of the mass density profiles of cosmological halos informs us of the nature of DM and DM-baryons interactions. Previous estimates of the inner slope of the mass…
The Megamaser Cosmology Project. XIII. Combined Hubble constant constraints
D. W. Pesce, J. A. Braatz, M. J. Reid +8
We present a measurement of the Hubble constant made using geometric distance measurements to megamaser-hosting galaxies. We have applied an improved approach for fitting maser dat…
HOLISMOKES -- I. Highly Optimised Lensing Investigations of Supernovae, Microlensing Objects, and Kinematics of Ellipticals and Spirals
S. H. Suyu, S. Huber, R. Cañameras +10
We present the HOLISMOKES programme on strong gravitational lensing of supernovae as a probe of supernova (SN) physics and cosmology. We investigate the effects of microlensing on…
Deeply cooled core of the Phoenix galaxy cluster imaged by ALMA with the Sunyaev-Zel'dovich effect
T. Kitayama, S. Ueda, T. Akahori +7
We present measurements of the thermal Sunyaev-Zel'dovich effect (SZE) toward SPT-CL J2334-4243 (the Phoenix galaxy cluster) at z=0.597 by the Atacama Large Millimeter/submillimete…
Testing tidal alignment models for anisotropic correlations of halo ellipticities with N-body simulations
Teppei Okumura, Atsushi Taruya, Takahiro Nishimichi
There is a growing interest of using the intrinsic alignment (IA) of galaxy images as a tool to extract cosmological information complimentary to galaxy clustering analysis. Recent…
The Radial Acceleration Relation in CLASH Galaxy Clusters
Yong Tian, Keiichi Umetsu, Chung-Ming Ko +2
The radial acceleration relation (RAR) in galaxies describes a tight empirical scaling law between the total acceleration observed in ga…