78 citations · 330 across the 13 of their papers we have counts for
11 papers · 1 filter
Subaru Hyper Suprime-Cam excavates colossal over- and under-dense structures over 360 deg2 out to z=1
Rhythm Shimakawa, Yuichi Higuchi, Masato Shirasaki +8
Subaru Strategic Program with the Hyper-Suprime Cam (HSC-SSP) has proven to be successful with its extremely-wide area coverage in past years. Taking advantages of this feature, we…
Shapley Supercluster Survey: mapping the dark matter distribution
Yuichi Higuchi, Nobuhiro Okabe, Paola Merluzzi +4
We present a 23deg weak gravitational lensing survey of the Shapley supercluster core and its surroundings using VST images as part of the Shapley Supercluster Survey (Sh…
Weak lensing Analysis of X-Ray-selected XXL Galaxy Groups and Clusters with Subaru HSC Data
Keiichi Umetsu, Mauro Sereno, Maggie Lieu +23
We present a weak-lensing analysis of X-ray galaxy groups and clusters selected from the XMM-XXL survey using the first-year data from the Hyper Suprime-Cam (HSC) Subaru Strategic…
Environmental effects on halo abundance and weak lensing peak statistics toward large underdense regions
Yuichi Higuchi, Kaiki Taro Inoue
The cosmic microwave background (CMB) contains an anomalous cold spot with a surrounding hot ring, known as the Cold Spot. Inoue & Silk (2006) proposed that this feature could be e…
The Projected Dark and Baryonic Ellipsoidal Structure of 20 CLASH Galaxy Clusters
Keiichi Umetsu, Mauro Sereno, Sut-Ieng Tam +24
We reconstruct the two-dimensional (2D) matter distributions in 20 high-mass galaxy clusters selected from the CLASH survey by using the new approach of performing a joint weak len…
Probing supervoids with weak lensing
Yuichi Higuchi, Kaiki Taro Inoue
The cosmic microwave background (CMB) has non-Gaussian features in the temperature fluctuations. An anomalous cold spot surrounded with a hot ring, called the Cold Spot is one of s…
The imprint of gravity on weak gravitational lensing II : Information content in cosmic shear statistics
Masato Shirasaki, Takahiro Nishimichi, Baojiu Li +1
We investigate the information content of various cosmic shear statistics on the theory of gravity. Focusing on the Hu-Sawicki-type model, we perform a set of ray-tracing si…
The imprint of gravity on weak gravitational lensing I: Connection between observables and large scale structure
Yuichi Higuchi, Masato Shirasaki
We study the effect of gravity on the statistical properties of various large-scale structures which can be probed in weak gravitational lensing measurements. A set of ray-t…
Detection of a filament connected to CL0016 with weak gravitational lensing
Yuichi Higuchi, Masamune Oguri, Masayuki Tanaka +1
We report on the weak lensing detection of a filament between two galaxy clusters at , CL0015.9+1609 and RX J0018.3+1618. We conduct weak lensing analysis of deep multi-ban…
Statistical properties of filaments in weak gravitational lensing
Yuichi Higuchi, Masamune Oguri, Masato Shirasaki
We study weak lensing properties of filaments that connect clusters of galaxies through large cosmological -body simulations. We select 4639 halo pairs with masses higher than $…
Measuring the mass distribution of voids with stacked weak lensing
Yuichi Higuchi, Masamune Oguri, Takashi Hamana
We study the prospects for measuring the dark matter distribution of voids with stacked weak lensing. We select voids from a large set of -body simulations, and explore their le…