activity
20172026
most citedMicrolensing constraints on primordial black holes with the Subaru/HSC Andromeda observation

532 citations · 1.3k across the 28 of their papers we have counts for

collaborators

28 papers

astro-ph.CO2026★ 1 cited

Microlensing constraints on Primordial Black Hole abundance with Subaru Hyper Suprime-Cam observations of Andromeda

Sunao Sugiyama, Masahiro Takada, Naoki Yasuda +1

We present updated microlensing analysis results based on high-cadence (2~min) Subaru Hyper Suprime-Cam (HSC) observations of the Andromeda Galaxy (M31) in 2014, 2017, and 20…

astro-ph.CO2025★ 1 cited

Hyper Suprime-Cam Y3 results: photo- bias calibration with lensing shear ratios and cosmological constraints from cosmic shear

Divya Rana, Surhud More, Hironao Miyatake +3

We present an independent calibration of the photometric redshift (photo-) distributions for source galaxies in the HSC-Y3 weak lensing survey using small-scale galaxy-galaxy le…

astro-ph.CO2025

Cosmology and Source Redshift Constraints from Galaxy Clustering and Tomographic Weak Lensing with HSC Y3 and SDSS using the Point-Mass Correction Model

Tianqing Zhang, Xiangchong Li, Sunao Sugiyama +13

The combination of galaxy clustering and weak lensing is a powerful probe of the cosmology model. We present a joint analysis of galaxy clustering and weak lensing cosmology using…

astro-ph.CO2025

Modelling Galaxy Clustering and Tomographic Galaxy-Galaxy Lensing with HSC Y3 and SDSS using the Point-Mass Correction Model and Redshift Self-Calibration

Tianqing Zhang, Sunao Sugiyama, Surhud More +13

The combination of galaxy-galaxy weak lensing and galaxy clustering is a powerful probe of the cosmological model, and exploration of how to best model and extract this information…

astro-ph.CO2025

Late-time suppression of structure growth as a solution for the tension

Ryo Terasawa, Masahiro Takada, Toshiki Kurita +1

The value inferred from the Subaru Hyper Suprime-Cam (HSC) Year 3 cosmic shear data, under the assumption of the flat CDM model, is 2-3 lower than that inferred from ob…

astro-ph.CO2025

Testing small-scale modifications in the primordial power spectrum with Subaru HSC cosmic shear, primary CMB and CMB lensing

Ryo Terasawa, Masahiro Takada, Sunao Sugiyama +1

Different cosmological probes, such as primary cosmic microwave background (CMB) anisotropies, CMB lensing, and cosmic shear, are sensitive to the primordial power spectrum (PPS) o…

astro-ph.CO2024★ 11 cited

Weak-Lensing Shear-Selected Galaxy Clusters from the Hyper Suprime-Cam Subaru Strategic Program: II. Cosmological Constraints from the Cluster Abundance

I-Non Chiu, Kai-Feng Chen, Masamune Oguri +9

We present cosmological constraints using the abundance of weak-lensing shear-selected galaxy clusters in the Hyper Suprime-Cam (HSC) Subaru Strategic Program. The clusters are sel…

astro-ph.CO2024★ 2 cited

Weak-Lensing Shear-Selected Galaxy Clusters from the Hyper Suprime-Cam Subaru Strategic Program: I. Cluster Catalog, Selection Function and Mass--Observable Relation

Kai-Feng Chen, I-Non Chiu, Masamune Oguri +9

We present the first step toward deriving cosmological constraints through the abundances of galaxy clusters selected in a weak-lensing aperture mass map, con…

astro-ph.CO2024★ 4 cited

Exploring the baryonic effect signature in the Hyper Suprime-Cam Year 3 cosmic shear two-point correlations on small scales: the tension remains present

Ryo Terasawa, Xiangchong Li, Masahiro Takada +10

The baryonic feedback effect is considered as a possible solution to the so-called tension indicated in cosmic shear cosmology. The baryonic effect is more significant on sma…

astro-ph.CO2023★ 3 cited

Optical Cluster Cosmology with SDSS redMaPPer clusters and HSC-Y3 lensing measurements

Tomomi Sunayama, Hironao Miyatake, Sunao Sugiyama +9

We present cosmology results obtained from a blind joint analysis of the abundance, projected clustering, and weak lensing of galaxy clusters measured from the Sloan Digital Sky Su…

astro-ph.CO2023★ 1 cited

The Intrinsic Alignment of Galaxy Clusters and Impact of Projection Effects

Jingjing Shi, Tomomi Sunayama, Toshiki Kurita +7

Galaxy clusters, being the most massive objects in the Universe, exhibit the strongest alignment with the large-scale structure. However, mis-identification of members due to proje…

astro-ph.CO2023★ 8 cited

Hyper Suprime-Cam Year 3 Results: Cosmology from Galaxy Clustering and Weak Lensing with HSC and SDSS using the Emulator Based Halo Model

Hironao Miyatake, Sunao Sugiyama, Masahiro Takada +31

We present cosmology results from a blinded joint analysis of cosmic shear, , galaxy-galaxy weak lensing, , and projected galaxy clustering, $w_{\rm p}…

astro-ph.CO2023★ 213 cited

Hyper Suprime-Cam Year 3 Results: Cosmology from Cosmic Shear Power Spectra

Roohi Dalal, Xiangchong Li, Andrina Nicola +35

We measure weak lensing cosmic shear power spectra from the three-year galaxy shear catalog of the Hyper Suprime-Cam (HSC) Subaru Strategic Program imaging survey. The shear catalo…

astro-ph.CO2023★ 85 cited

Hyper Suprime-Cam Year 3 Results: Cosmology from Galaxy Clustering and Weak Lensing with HSC and SDSS using the Minimal Bias Model

Sunao Sugiyama, Hironao Miyatake, Surhud More +27

We present cosmological parameter constraints from a blind joint analysis of three two-point correlation functions measured from the Year 3 Hyper Suprime-Cam (HSC-Y3) imaging data,…

astro-ph.CO2023★ 4 cited

Hyper Suprime-Cam Year 3 Results: Measurements of Clustering of SDSS-BOSS Galaxies, Galaxy-Galaxy Lensing and Cosmic Shear

Surhud More, Sunao Sugiyama, Hironao Miyatake +31

We use the Sloan Digital Sky Survey (SDSS) BOSS galaxies and their overlap with approximately 416 sq. degree of deep -band imaging from the Subaru Hyper Suprime-Cam Survey (…

astro-ph.CO2023★ 23 cited

Hyper Suprime-Cam Year 3 Results: Cosmology from Cosmic Shear Two-point Correlation Functions

Xiangchong Li, Tianqing Zhang, Sunao Sugiyama +32

We perform a blinded cosmology analysis with cosmic shear two-point correlation functions (2PCFs) measured from more than 25 million galaxies in the Hyper Suprime-Cam three-year sh…

astro-ph.CO2022★ 15 cited

A General Framework for Removing Point Spread Function Additive Systematics in Cosmological Weak Lensing Analysis

Tianqing Zhang, Xiangchong Li, Roohi Dalal +10

Cosmological weak lensing measurements rely on a precise measurement of the shear two-point correlation function (2PCF) along with a deep understanding of systematics that affect i…

astro-ph.IM2022

FFT based evaluation of microlensing magnification with extended source

Sunao Sugiyama

The extended source effect on microlensing magnification is non-negligible and must be taken into account for in an analysis of microlensing. However, the evaluation of the extende…

astro-ph.CO2021★ 18 cited

Cluster cosmology with anisotropic boosts: Validation of a novel forward modeling analysis and application on SDSS redMaPPer clusters

Youngsoo Park, Tomomi Sunayama, Masahiro Takada +5

We present a novel analysis for cluster cosmology that fully forward models the abundances, weak lensing, and the clustering of galaxy clusters. Our analysis notably includes an em…

astro-ph.CO2021★ 6 cited

Cosmological inference from the emulator based halo model II: Joint analysis of galaxy-galaxy weak lensing and galaxy clustering from HSC-Y1 and SDSS

Hironao Miyatake, Sunao Sugiyama, Masahiro Takada +25

We present high-fidelity cosmology results from a blinded joint analysis of galaxy-galaxy weak lensing () and projected galaxy clustering () measured from the Hype…

astro-ph.CO2021

HSC Year 1 cosmology results with the minimal bias method: HSCBOSS galaxy-galaxy weak lensing and BOSS galaxy clustering

Sunao Sugiyama, Masahiro Takada, Hironao Miyatake +23

We present cosmological parameter constraints from a blinded joint analysis of galaxy-galaxy weak lensing, , and projected correlation function, , measure…

hep-ph2021★ 27 cited

Possible evidence of QCD axion stars in HSC and OGLE microlensing events

Sunao Sugiyama, Masahiro Takada, Alexander Kusenko

Dark matter in the form of axions is expected to form miniclusters, and their dense regions can harbor compact axion stars. Such axion stars could be discovered by microlensing eve…

astro-ph.CO2020★ 29 cited

Cosmological inference from emulator based halo model I: Validation tests with HSC and SDSS mock catalogs

Hironao Miyatake, Yosuke Kobayashi, Masahiro Takada +7

We present validation tests of emulator-based halo model method for cosmological parameter inference, assuming hypothetical measurements of the projected correlation function of ga…

astro-ph.CO2020★ 77 cited

Testing Stochastic Gravitational Wave Signals from Primordial Black Holes with Optical Telescopes

Sunao Sugiyama, Volodymyr Takhistov, Edoardo Vitagliano +3

Primordial black holes (PBHs) can constitute the predominant fraction of dark matter (DM) if PBHs reside in the currently unconstrained "sublunar" mass range. PBHs originating from…