Publications

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Publications in Refereed Journals (submitted)

[34] HSC Year 1 cosmology results with the minimal bias method: HSC×BOSS galaxy-galaxy weak lensing and BOSS galaxy clustering
Sunao Sugiyama, Masahiro Takada, Hironao Miyatake, Takahiro Nishimichi, Masato Shirasaki, Yosuke Kobayashi, Surhud More, Ryuichi Takahashi, Ken Osato, Masamune Oguri, Jean Coupon, Chiaki Hikage, Bau-Ching Hsieh, Yotaka Komiyama, Alexie Leauthaud, Xiangchong Li, Wentao Luo, Robert H. Lupton, Hitoshi Murayama, Atsushi J. Nishizawa, Youngsoo Park, Paul A. Price, Melanie Simet, Joshua S. Speagle, Michael A. Strauss, Masayuki Tanaka
arXiv:2111.10966 [astro-ph.CO]
[33] 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, Takahiro Nishimichi, Masato Shirasaki, Yosuke Kobayashi, Rachel Mandelbaum, Surhud More, Masamune Oguri, Ken Osato, Youngsoo Park, Ryuichi Takahashi, Jean Coupon, Chiaki Hikage, Bau-Ching Hsieh, Alexie Leauthaud, Xiangchong Li, Wentao Luo, Robert H. Lupton, Satoshi Miyazaki, Hitoshi Murayama, Atsushi J. Nishizawa, Paul A. Price, Melanie Simet, Joshua S. Speagle, Michael A. Strauss, Masayuki Tanaka, Naoki Yoshida
arXiv:2111.02419 [astro-ph.CO]
[32] Third Data Release of the Hyper Suprime-Cam Subaru Strategic Program
Hiroaki Aihara, et al. (the HSC-SSP collaboration, including Ken Osato)
arXiv:2108.13045 [astro-ph.IM]
[31] Probing cosmology and gastrophysics with fast radio bursts: Cross-correlations of dark matter haloes and cosmic dispersion measures
Masato Shirasaki, Ryuichi Takahashi, Ken Osato, and Kunihito Ioka
arXiv:2108.12205 [astro-ph.CO]
[30] Mock catalogues of emission line galaxies based on the local mass density in dark-matter only simulations
Ken Osato, Takahiro Nishimichi, and Masahiro Takada
arXiv:2107.13168 [astro-ph.GA]
[29] Cosmological inference from emulator based halo model I: Validation tests with HSC and SDSS mock catalogs
Hironao Miyatake, Yosuke Kobayashi, Masahiro Takada, Takahiro Nishimichi, Masato Shirasaki, Sunao Sugiyama, Ryuichi Takahashi, Ken Osato, Surhud More, and Youngsoo Park
arXiv:2101.00113 [astro-ph.CO]

Publications in Refereed Journals (published or in press)

[28] Implementing spectra response function approaches for fast calculation of power spectra and bispectra
Ken Osato, Takahiro Nishimichi, Atsushi Taruya, and Francis Bernardeau
Physical Review D, 104, 103501 (2021) (arXiv:2107.04275 [astro-ph.CO])
[27] An Optimal Estimator of Intrinsic Alignments for Star-forming Galaxies in Illustris-TNG Simulation
Jingjing Shi, Ken Osato, Toshiki Kurita, and Masahiro Takada
The Astrophysical Journal, 917, 109 (2021) (arXiv:2104.12329 [astro-ph.CO])
[26] Angular clustering and host halo properties of [OII] emitters at z>1 in the Subaru HSC survey
Teppei Okumura, Masao Hayashi, I-Non Chiu, Yen-Ting Lin, Ken Osato, Bau-Ching Hsieh, and Sheng-Chieh Lin
Publications of the Astronomical Society of Japan, 73, 1186 (2021) (arXiv:2012.12224 [astro-ph.CO])
[25] κTNG: Effect of Baryonic Processes on Weak Lensing with IllustrisTNG Simulations
Ken Osato, Jia Liu, and Zoltán Haiman
Monthly Notices of the Royal Astronomical Society, 502, 5593 (2021) (arXiv:2010.09731 [astro-ph.CO])
[24] Super-sample covariance of the thermal Sunyaev-Zel'dovich effect
Ken Osato and Masahiro Takada
Physical Review D, 103, 063501 (2021) (arXiv:2010.04174 [astro-ph.CO])
[23] Power Spectrum of Intrinsic Alignments of Galaxies in IllustrisTNG
Jingjing Shi, Toshiki Kurita, Masahiro Takada, Ken Osato, Yosuke Kobayashi, and Takahiro Nishimichi
Journal of Cosmology and Astroparticle Physics, 03, 030 (2021) (arXiv:2009.00276 [astro-ph.GA])
[22] Power spectrum of halo intrinsic alignments in simulations
Toshiki Kurita, Masahiro Takada, Takahiro Nishimichi, Ryuichi Takahashi, Ken Osato, and Yosuke Kobayashi
Monthly Notices of the Royal Astronomical Society, 501, 833 (2020) (arXiv:2004.12579 [astro-ph.CO])
[21] An accurate emulator for the redshift-space power spectrum of dark matter halos and its application to galaxy power spectrum
Yosuke Kobayashi, Takahiro Nishimichi, Masahiro Takada, Ryuichi Takahashi, and Ken Osato
Physical Review D, 102, 063504 (2020) (arXiv:2005.06122 [astro-ph.CO])
[20] The impact of projection effects on cluster observables: stacked lensing and projected clustering
Tomomi Sunayama, Youngsoo Park, Masahiro Takada, Yosuke Kobayashi, Takahiro Nishimichi, Toshiki Kurita, Surhud More, Masamune Oguri, and Ken Osato
Monthly Notices of the Royal Astronomical Society, 496, 4468 (2020) (arXiv:2002.03867 [astro-ph.CO])
[19] Fitting the nonlinear matter bispectrum by the Halofit approach
Ryuichi Takahashi, Takahiro Nishimichi, Toshiya Namikawa, Atsushi Taruya, Issha Kayo, Ken Osato, Yosuke Kobayashi, and Masato Shirasaki
The Astrophysical Journal, 895, 113 (2020) (arXiv:1911.07886 [astro-ph.CO])
[18] The splashback radius of optically selected clusters with Subaru HSC Second Public Data Release
Ryoma Murata, Tomomi Sunayama, Masamune Oguri, Surhud More, Atsushi J. Nishizawa, Takahiro Nishimichi, and Ken Osato
Publications of the Astronomical Society of Japan, 72, 64 (2020) (arXiv:2001.01160 [astro-ph.CO])
[17] Weak Lensing Minima and Peaks: Cosmological Constraints and the Impact of Baryons
William R. Coulton, Jia Liu, Ian G. McCarthy, and Ken Osato
Monthly Notices of the Royal Astronomical Society, 495, 2531 (2020) (arXiv:1910.04171 [astro-ph.CO])
[16] Cross-correlation of the thermal Sunyaev-Zel'dovich effect and weak gravitational lensing: Planck and Subaru Hyper Suprime-Cam first-year data
Ken Osato, Masato Shirasaki, Hironao Miyatake, Daisuke Nagai, Naoki Yoshida, Masamune Oguri, and Ryuichi Takahashi
Monthly Notices of the Royal Astronomical Society, 492, 4780 (2020) (arXiv:1910.07526 [astro-ph.CO])
[15] Second Data Release of the Hyper Suprime-Cam Subaru Strategic Program
Hiroaki Aihara, et al. (the HSC-SSP collaboration, including Ken Osato)
Publications of the Astronomical Society of Japan, 71, 114 (2019) (arXiv:1905.12221 [astro-ph.IM])
[14] The mass-richness relation of optically-selected clusters from weak gravitational lensing and abundance with Subaru HSC first-year data
Ryoma Murata, Masamune Oguri, Takahiro Nishimichi, Masahiro Takada, Rachel Mandelbaum, Surhud More, Masato Shirasaki, Atsushi J. Nishizawa, and Ken Osato
Publications of the Astronomical Society of Japan, 71, 107 (2019) (arXiv:1904.07524 [astro-ph.CO])
[13] Dark Quest. I. Fast and Accurate Emulation of Halo Clustering Statistics and Its Application to Galaxy Clustering
Takahiro Nishimichi, Masahiro Takada, Ryuichi Takahashi, Ken Osato, Masato Shirasaki, Taira Oogi, Hironao Miyatake, Masamune Oguri, Ryoma Murata, Yosuke Kobayashi, and Naoki Yoshida
The Astrophysical Journal, 884, 29 (2019) (arXiv:1811.09504 [astro-ph.CO])
[12] Weak-Lensing Mass Calibration of ACTPol Sunyaev-Zel'dovich Clusters with the Hyper Suprime-Cam Survey
Hironao Miyatake, et al. (including Ken Osato)
The Astrophysical Journal, 875, 63 (2019) (arXiv:1804.05873 [astro-ph.CO])
[11] Perturbation theory challenge for cosmological parameters estimation: Matter power spectrum in real space
Ken Osato, Takahiro Nishimichi, Francis Bernardeau, and Atsushi Taruya
Physical Review D, 99, 063530 (2019) (arXiv:1810.10104 [astro-ph.CO])
[10] Exploring the distance-redshift relation with gravitational wave standard sirens and tomographic weak lensing
Ken Osato
Physical Review D, 98, 083524 (2018) (arXiv:1807.00016 [astro-ph.CO])
[9] Splashback radius of nonspherical dark matter halos from cosmic density and velocity fields
Teppei Okumura, Takahiro Nishimichi, Keiichi Umetsu, and Ken Osato
Physical Review D, 98, 023523 (2018) (arXiv:1807.02669 [astro-ph.CO])
[8] Strong orientation dependence of surface mass density profiles of dark haloes at large scales
Ken Osato, Takahiro Nishimichi, Masamune Oguri, Masahiro Takada, and Teppei Okumura
Monthly Notices of the Royal Astronomical Society, 477, 2141 (2018) (arXiv:1712.00094 [astro-ph.CO])
[7] Constraints on the mass-richness relation from the abundance and weak lensing of SDSS clusters
Ryoma Murata, Takahiro Nishimichi, Masahiro Takada, Hironao Miyatake, Masato Shirasaki, Surhud More, Ryuichi Takahashi, and Ken Osato
The Astrophysical Journal, 854, 120 (2018) (arXiv:1707.01907 [astro-ph.CO])
[6] Investigating Cluster Astrophysics and Cosmology with Cross-Correlation of the Thermal Sunyaev-Zel'dovich Effect and Weak Lensing
Ken Osato, Samuel Flender, Daisuke Nagai, Masato Shirasaki, and Naoki Yoshida
Monthly Notices of the Royal Astronomical Society, 475, 532 (2018) (arXiv:1706.08972 [astro-ph.CO])
[5] The Hyper Suprime-Cam SSP Survey: Overview and Survey Design
Hiroaki Aihara, et al. (the HSC-SSP collaboration, including Ken Osato)
Publications of the Astronomical Society of Japan, 70, S4 (2018) (arXiv:1704.05858 [astro-ph.IM])
[4] Full-sky Gravitational Lensing Simulation for Large-area Galaxy Surveys and Cosmic Microwave Background Experiments
Ryuichi Takahashi, Takashi Hamana, Masato Shirasaki, Toshiya Namikawa, Takahiro Nishimichi, Ken Osato, and Kosei Shiroyama
The Astrophysical Journal, 850, 24 (2017) (arXiv:1706.01472 [astro-ph.CO])
[3] Cosmological Constraint on the Light Gravitino Mass from CMB Lensing and Cosmic Shear
Ken Osato, Toyokazu Sekiguchi, Masato Shirasaki, Ayuki Kamada, and Naoki Yoshida
Journal of Cosmology and Astroparticle Physics, 06, 004 (2016) (arXiv:1601.07386 [astro-ph.CO])
[2] Confrontation of Top-Hat Spherical Collapse against Dark Halos from Cosmological N-Body Simulations
Daichi Suto, Tetsu Kitayama, Ken Osato, Shin Sasaki, and Yasushi Suto
Publications of the Astronomical Society of Japan, 68, 14 (2016) (arXiv:1511.06935 [astro-ph.CO])
[1] Impact of Baryonic Processes on Weak Lensing Cosmology: Power Spectrum, Non-Local Statistics, and Parameter Bias
Ken Osato, Masato Shirasaki, and Naoki Yoshida
The Astrophysical Journal, 806, 186 (2015) (arXiv:1501.02055 [astro-ph.CO])

Conference Proceedings

[3] Super DIOS mission for exploring "dark baryon"
Kosuke Sato, et al. (the DIOS team, including Ken Osato)
Society of Photo-Optical Instrumentation Engineers Conference Series, 114445O (2020)
[2] Super DIOS: future X-ray spectroscopic mission to search for dark baryons
Shinya Yamada, et al. (the DIOS team, including Ken Osato)
Journal of Low Temperature Physics, 193, 1016 (2018)
[1] Super DIOS: future x-ray spectroscopic mission to search for dark baryons
Takaya Ohashi, et al. (the DIOS team, including Ken Osato)
Society of Photo-Optical Instrumentation Engineers Conference Series, 1069928 (2018)

Thesis and Dissertation

[2] Cosmology and Cluster Astrophysics with Weak Gravitational Lensing and the Sunyaev-Zel'dovich Effect
Ken Osato
Doctoral Dissertation, The University of Tokyo, 2019
[1] Cosmology with Weak Gravitational Lensing and Sunyaev-Zel'dovich Effect
Ken Osato
Master's Thesis, The University of Tokyo, 2016

Research Article (in Japanese)