109 citations · 831 across the 25 of their papers we have counts for
25 papers
SHAPE: cosmology with cluster halo intrinsic alignments from subhalo distributions
Shogo Ishikawa, Atsushi Taruya, Takahiro Nishimichi +2
Galaxy clusters trace the most massive dark matter haloes, whose shapes and orientations reflect the imprint of the cosmic large-scale tidal field. This paper introduces the Subhal…
A new constraint on galaxy-halo connections of [O II] emitters via HOD modelling with angular clustering and luminosity functions from the Subaru HSC survey
Shogo Ishikawa, Teppei Okumura, Masao Hayashi +1
Establishing a robust connection model between emission-line galaxies (ELGs) and their host dark haloes is of paramount importance in anticipation of upcoming redshift surveys. We…
Galaxy-dark matter connection from weak lensing in imaging surveys: Impact of photometric redshift errors
Navin Chaurasiya, Surhud More, Daichi Kashino +2
The uncertainties in photometric redshifts and stellar masses from imaging surveys affect galaxy sample selection, their abundance measurements, as well as the measured weak lensin…
Mock Observatory: two thousand lightcone mock catalogues of luminous red galaxies from the Hyper Suprime-Cam Survey for the cosmological large-scale analysis
Shogo Ishikawa, Teppei Okumura, Takahiro Nishimichi
Estimating a reliable covariance matrix for correlation functions of galaxies is a crucial task to obtain accurate cosmological constraints from galaxy surveys. We generate 2,000 i…
Galaxy-dark matter connection of photometric galaxies from the HSC-SSP Survey: Galaxy-galaxy lensing and the halo model
Navin Chaurasiya, Surhud More, Shogo Ishikawa +3
We infer the connection between the stellar mass of galaxies from the Subaru Hyper Suprime-Cam (HSC) survey, and their dark matter halo masses and its evolution in two bins of reds…
A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VII. Redshift Evolution of Radio Galaxy Environments at z=0.3-1.4
Hisakazu Uchiyama, Takuji Yamashita, Tohru Nagao +9
We examine the redshift evolution of density environments around 2,163 radio galaxies with the stellar masses of between redshifts of , base…
Halo-model analysis of the clustering of photometric luminous red galaxies at from the Subaru Hyper Suprime-Cam Survey
Shogo Ishikawa, Teppei Okumura, Masamune Oguri +1
We present the clustering analysis of photometric luminous red galaxies (LRGs) at a redshift range of using photometric LRGs selected from the Hyper…
Faint Quasars Live in the Same Number Density Environments as Lyman Break Galaxies at z ~ 4
Hisakazu Uchiyama, Masayuki Akiyama, Jun Toshikawa +16
Characterizing high-z quasar environments is key to understanding the co-evolution of quasars and the surrounding galaxies. To restrict their global picture, we statistically exami…
The Subaru HSC Galaxy Clustering with Photometric Redshift I: Dark Halo Masses Versus Baryonic Properties of Galaxies at 0.3<z<1.4
Shogo Ishikawa, Nobunari Kashikawa, Masayuki Tanaka +8
We present the clustering properties of low- galaxies selected by the Hyper Suprime-Cam Subaru Strategic Program Wide layer over deg. The wide-field and…
Discovery of Protoclusters at z~3.7 & 4.9: Embedded in Primordial Superclusters
Jun Toshikawa, Matthew A. Malkan, Nobunari Kashikawa +5
We have carried out follow-up spectroscopy on three overdense regions of - and -dropout galaxies in the Canada-France-Hawaii Telescope Legacy Survey Deep Fields, finding two…
The brightest UV-selected galaxies in protoclusters at : Ancestors of Brightest Cluster Galaxies?
Kei Ito, Nobunari Kashikawa, Jun Toshikawa +13
We present the results of a survey of the brightest UV-selected galaxies in protoclusters. These proto-brightest cluster galaxy (proto-BCG) candidates are drawn from 179 overdense…
Suppression of Low-mass Galaxy Formation around Quasars at z~2-3
H. Uchiyama, N. Kashikawa, R. Overzier +7
We have carried out deep and wide field imaging observations with narrow bands targeting 11 quasar fields to systematically study the possible photoevaporation effect of quasar rad…
SILVERRUSH. VII. Subaru/HSC Identifications of 42 Protocluster Candidates at z~6-7 with the Spectroscopic Redshifts up to z=6.574: Implications for Cosmic Reionization
Ryo Higuchi, Masami Ouchi, Yoshiaki Ono +17
We report fourteen and twenty-eight protocluster candidates at z=5.7 and 6.6 over 14 and 19 deg^2 areas, respectively, selected from 2,230 (259) Lya emitters (LAEs) photometrically…
Lyman-Break Galaxies at in the Subaru Deep Field: Luminosity Function, Clustering and [OIII] Emission
Matthew A. Malkan, Daniel P. Cohen, Miyoko Maruyama +6
We combined deep U-band imaging from the KPNO-4m/MOSAIC camera with very deep multi-waveband data from the optical to infrared, to select Lyman Break Galaxies (LBGs) at z~3 using U…
Minor Contribution of Quasars to Ionizing Photon Budget at z~6: Update on Quasar Luminosity Function at the Faint-end with Subaru/Suprime-Cam
Masafusa Onoue, Nobunari Kashikawa, Chris J. Willott +16
We constrain the quasar contribution to cosmic reionization based on our deep optical survey of z~6 quasars down to z_R=24.15 using Subaru/Suprime-Cam in three UKIDSS-DXS fields co…
GOLDRUSH. III. A Systematic Search of Protoclusters at Based on the Area
Jun Toshikawa, Hisakazu Uchiyama, Nobunari Kashikawa +15
We conduct a systematic search for galaxy protoclusters at based on the latest internal data release (S16A) of the Hyper SuprimeCam Subaru strategic program (HSC-SSP). I…
Luminous Quasars Do Not Live in the Most Overdense Regions of Galaxies at z~4
Hisakazu Uchiyama, Jun Toshikawa, Nobunari Kashikawa +22
We present the cross-correlation between 151 luminous quasars () and 179 protocluster candidates at , extracted from the Wide imaging survey ($…
The Galaxy--Halo Connection in High-Redshift Universe: Details and Evolution of Stellar-to-Halo Mass Ratios of Lyman Break Galaxies on CFHTLS Deep Fields
Shogo Ishikawa, Nobunari Kashikawa, Jun Toshikawa +5
We present the results of clustering analyses of Lyman break galaxies (LBGs) at , , and using the final data release of the Canada--France--Hawaii Telescope Legacy S…
The redshift selected sample of long gamma-ray burst host galaxies: the overall metallicity distribution at
Yuu Niino, Kentaro Aoki, Tetsuya Hashimoto +7
We discuss the host galaxy metallicity distribution of all long gamma-ray bursts (GRBs) whose redshifts are known to be , including newly obtained spectroscopic datasets of…
A Systematic Survey of Protoclusters at in the CFHTLS Deep Fields
Jun Toshikawa, Nobunari Kashikawa, Roderik Overzier +8
We present the discovery of three protoclusters at with spectroscopic confirmation in the Canada-France-Hawaii Telescope (CFHT) Legacy Survey Deep Fields. In th…
The very wide-field galaxy survey -- II. The relationship between star-forming galaxies at and their host haloes based upon HOD modelling
Shogo Ishikawa, Nobunari Kashikawa, Takashi Hamana +2
We present the results of an halo occupation distribution (HOD) analysis of star-forming galaxies at . We obtained high-quality angular correlation functions based on a l…
The very wide-field galaxy survey -- I. Details of the clustering properties of star-forming galaxies at
Shogo Ishikawa, Nobunari Kashikawa, Jun Toshikawa +1
We present the results of clustering analysis on the star-forming galaxies. By combining our data with data from publicly available archives, we collect -, $\zb / z$-…
The Subaru high-z quasar survey: discovery of faint z~6 quasars
Nobunari Kashikawa, Yoshifumi Ishizaki, Chris J. Willott +9
We present the discovery of one or two extremely faint z~6 quasars in 6.5 deg^2 utilizing a unique capability of the wide-field imaging of the Subaru/Suprime-Cam. The quasar select…
A First Site of Galaxy Cluster Formation: Complete Spectroscopy of a Protocluster at
Jun Toshikawa, Nobunari Kashikawa, Roderik Overzier +8
We performed a systematic spectroscopic observation of a protocluster at in the Subaru Deep Field. We took spectroscopy for all 53 -dropout galaxies down to $z'=27.09\…