Exploring precision cosmology with Subaru wide-field galaxy surveys

• Project/Area Number: 15H03654
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: Takada Masahiro 東京大学, カブリ数物連携宇宙研究機構, 教授 (40374889)
• Project Period (FY): 2015-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000); Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2015: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
• Keywords: ダークマター / ダークエネルギー / ニュートリノ

Outline of Final Research Achievements

The purpose of this research is to constrain cosmological parameters such as the amount of dark matter in the universe from the massive datasets of the wide-field Subaru Hyper Suprime-Cam survey that is ongoing since 2014. The main results we have obtained are as follows. (1) We obtained the three-dimensional map of dark matter distribution in the universe from precise measurements of gravitational lensing effects from the Subaru HSC data. By comparing the gravitational lensing effects of Subaru HSC data with the theoretical predictions for the standard cosmological model, we measured the cosmological parameters such as the amount of dark matter. The cosmological model preferred by the Subaru HSC data shows some discrepancy with the model from the cosmic microwave background, and we anticipate a further development in coming years.

Academic Significance and Societal Importance of the Research Achievements

宇宙のエネルギーの約95％を占める、ダークマター、ダークエネルギー、の正体の解明は、天文学のみならず物理学の最重要課題である。日本が主導リードするすばる望遠鏡Hyper Suprime-Camによる大規模イメージングサーベイのデータを用いることにより、これら宇宙のダーク成分の解明に挑むことができる。本研究は、これを目的とし、重力レンズの手法の構築、理論模型の整備、また実際の物理解析からダークマターの総量などを制限することに成功した。大学院生、若手研究者の育成の貢献だけでなく、天文学、基礎物理に進展に貢献する結果と言え、また日本の宇宙論研究の国際的地位を高めた結果と言える。

Research Products

• [Int'l Joint Research] プリンストン大学/カーネギーメロン大学/カリフォルニア大学サンタクルーズ校(米国)
• [Int'l Joint Research] インド天文学天体物理学大学連携センター(IUCAA)(インド)
• [Int'l Joint Research] ASIAA(台湾)
• [Int'l Joint Research] ジュネーブ大学(スイス)
• [Int'l Joint Research] プリンストン大学/カーネギーメロン大学/カリフォルニア大学サンタクルーズ校(米国)
• [Int'l Joint Research] 中央研究院天文及天文物理研究所/National Taiwan University/台湾精華大学(台湾)
• [Int'l Joint Research] Laboratoire d’Astrophysique de Marseille(フランス)
• [Int'l Joint Research] Saint Mary’s University(カナダ)
• [Int'l Joint Research] Shanghai Astronomical Observatory(中国)
• [Int'l Joint Research]
• [Int'l Joint Research] プリンストン大学/カリフォルニア工科大学/シカゴ大学(米国)
• [Int'l Joint Research] ASIAA(台湾)
• [Int'l Joint Research] Shanghai Jiatong University/USTC/Thinghua University(中国)
• [Int'l Joint Research] Laboratoire d'Astrophysique de Marseille(フランス)
• [Int'l Joint Research] Princeton University/University of Chicago/Canegie Mellon University(米国)
• [Int'l Joint Research] ASIAA(Taiwan)
• [Int'l Joint Research]
• [Journal Article] Mock galaxy shape catalogues in the Subaru Hyper Suprime-Cam Survey (2019)
  • Author(s): Masato Shirasaki, Takashi Hamana, Masahiro Takada, Ryuichi Takahashi, Hironao Miyatake
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 印刷中 Issue: 1 Pages: 52-69
  • DOI: 10.1093/mnras/stz791
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Microlensing constraints on primordial black holes with Subaru/HSC Andromeda observations (2019)
  • Author(s): Niikura Hiroko、Takada Masahiro、Yasuda Naoki、Lupton Robert H.、Sumi Takahiro、More Surhud、Kurita Toshiki、Sugiyama Sunao、More Anupreeta、Oguri Masamune、Chiba Masashi
  • Journal Title: Nature Astronomy Volume: 238 Issue: 6 Pages: 524-534
  • DOI: 10.1038/s41550-019-0723-1
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Cosmology from cosmic shear power spectra with Subaru Hyper Suprime-Cam first-year data (2019)
  • Author(s): Hikage Chiaki、Oguri Masamune、et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 印刷中 Issue: 2 Pages: 43-43
  • DOI: 10.1093/pasj/psz010
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Discovery of the First Low-luminosity Quasar at z > 7 (2019)
  • Author(s): Matsuoka Yoshiki、Onoue Masafusa、Kashikawa Nobunari、Strauss Michael A、Iwasawa Kazushi、Lee Chien-Hsiu、Imanishi Masatoshi、et al.
  • Journal Title: The Astrophysical Journal Volume: 872 Issue: 1 Pages: 2-2
  • DOI: 10.3847/2041-8213/ab0216
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Bispectrum as baryon acoustic oscillation interferometer (2018)
  • Author(s): Child Hillary L.、Takada Masahiro、Nishimichi Takahiro、Sunayama Tomomi、Slepian Zachary、Habib Salman、Heitmann Katrin
  • Journal Title: Physical Review D Volume: 98 Issue: 12 Pages: 123521-123521
  • DOI: 10.1103/physrevd.98.123521
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). V. Quasar Luminosity Function and Contribution to Cosmic Reionization at z = 6 (2018)
  • Author(s): Matsuoka Yoshiki、Strauss Michael A.、Kashikawa Nobunari、Onoue Masafusa、Iwasawa Kazushi、Tang Ji-Jia、Lee Chien-Hsiu、Imanishi Masatoshi、et al.
  • Journal Title: The Astrophysical Journal Volume: 869 Issue: 2 Pages: 150-150
  • DOI: 10.3847/1538-4357/aaee7a
  • NAID: 120006707417
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Stacked lensing estimators and their covariance matrices: excess surface mass density versus lensing shear (2018)
  • Author(s): Shirasaki Masato、Takada Masahiro
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 478 Issue: 4 Pages: 4277-4292
  • DOI: 10.1093/mnras/sty1327
  • Peer Reviewed
• [Journal Article] Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). IV. Discovery of 41 Quasars and Luminous Galaxies at 5.7 < z < 6.9 (2018)
  • Author(s): Matsuoka Yoshiki、Iwasawa Kazushi、Onoue Masafusa、Kashikawa Nobunari、Strauss Michael A.、Lee Chien-Hsiu、Imanishi Masatoshi、et al.
  • Journal Title: The Astrophysical Journal Supplement Series Volume: 237 Issue: 1 Pages: 5-5
  • DOI: 10.3847/1538-4365/aac724
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Strong orientation dependence of surface mass density profiles of dark haloes at large scales (2018)
  • Author(s): Osato Ken、Nishimichi Takahiro、Oguri Masamune、Takada Masahiro、Okumura Teppei
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 477 Issue: 2 Pages: 2141-2153
  • DOI: 10.1093/mnras/sty762
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Constraints on the Mass?Richness Relation from the Abundance and Weak Lensing of SDSS Clusters (2018)
  • Author(s): Murata Ryoma、Nishimichi Takahiro、Takada Masahiro、Miyatake Hironao、Shirasaki Masato、More Surhud、Takahashi Ryuichi、Osato Ken
  • Journal Title: The Astrophysical Journal Volume: 854 Issue: 2 Pages: 120-120
  • DOI: 10.3847/1538-4357/aaaab8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). II. Discovery of 32 quasars and luminous galaxies at 5.7 < z < 6.8 (2018)
  • Author(s): Matsuoka Yoshiki、Onoue Masafusa、Kashikawa Nobunari、Iwasawa Kazushi、Strauss Michael A、Nagao Tohru、Imanishi Masatoshi、Lee Chien-Hsiu、Akiyama Masayuki、Asami Naoko、et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1 Pages: 1-23
  • DOI: 10.1093/pasj/psx046
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Two- and three-dimensional wide-field weak lensing mass maps from the Hyper Suprime-Cam Subaru Strategic Program S16A data (2018)
  • Author(s): Oguri, Masamune; Miyazaki, Satoshi; Hikage, Chiaki; Mandelbaum, Rachel; Utsumi, Yousuke; Miyatake, Hironao; Takada, Masahiro; Armstrong, Robert; Bosch, James; Komiyama, Yutaka; Leauthaud, Alexie; More, Surhud; Nishizawa, Atsushi J.; Okabe, Nobuhiro; Tanaka, Masayuki
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1 Pages: 1-14
  • DOI: 10.1093/pasj/psx070
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] An optically-selected cluster catalog at redshift 0.1 z 1.1 from the Hyper Suprime-Cam Subaru Strategic Program S16A data (2018)
  • Author(s): M. Oguri, A. J. Nishizawa, A. More, S. More, E. Medezinski, H. Miyatake, M. Takada et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1 Pages: 1-19
  • DOI: 10.1093/pasj/psx042
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] First data release of the Hyper Suprime-Cam Subaru Strategic Program (2018)
  • Author(s): Aihara Hiroaki、Armstrong Robert、Bickerton Steven、et al. (including Imanishi M.)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1 Pages: 1-34
  • DOI: 10.1093/pasj/psx081
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Hyper Suprime-Cam SSP Survey: Overview and survey design (2018)
  • Author(s): Aihara Hiroaki、Arimoto Nobuo、Armstrong Robert、 et al. (including Imanishi M.)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1 Pages: 1-15
  • DOI: 10.1093/pasj/psx066
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hyper Suprime-Cam: System design and verification of image quality (2018)
  • Author(s): S. Miyazaki, Y. Komiyama, S. Kawanomoto, Y. Doi, H. Furusawa, T. Hamana, Y. Hayashi et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1 Pages: 1-26
  • DOI: 10.1093/pasj/psx063
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The first-year shear catalog of the Subaru Hyper Suprime-Cam Subaru Strategic Program Survey (2017)
  • Author(s): Mandelbaum Rachel、Miyatake Hironao、Hamana Takashi、et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1 Pages: 1-43
  • DOI: 10.1093/pasj/psx130
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] First results on the cluster galaxy population from the Subaru Hyper Suprime-Cam survey. II. Faint end color?magnitude diagrams and radial profiles of red and blue galaxies at 0.1?<?z?<?1.1 (2017)
  • Author(s): Nishizawa Atsushi J、Oguri Masamune、Oogi Taira、More Surhud、Nishimichi Takahiro、Nagashima Masahiro、Lin Yen-Ting、Mandelbaum Rachel、Takada Masahiro、Bahcall Neta、Coupon Jean、Huang Song、Jian Hung-Yu、Komiyama Yutaka、Leauthaud Alexie、Lin Lihwai、Miyatake Hironao、Miyazaki Satoshi、Tanaka Masayuki
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1 Pages: 1-17
  • DOI: 10.1093/pasj/psx106
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] First results on the cluster galaxy population from the Subaru Hyper Suprime-Cam survey. I. The role of group or cluster environment in star formation quenching from z = 0.2 to 1.1 (2017)
  • Author(s): H.-Y. Jian、L. Lini、M. Oguri、A. Nishizawa、M. Takada, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1
  • DOI: 10.1093/pasj/psx096
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Sumo Puff: Tidal debris or disturbed ultra-diffuse galaxy? (2017)
  • Author(s): Greco Johnny P、Greene Jenny E、Price-Whelan Adrian M、Leauthaud Alexie、Huang Song、Goulding Andy D、Strauss Michael A、Komiyama Yutaka、Lupton Robert H、Miyazaki Satoshi、Takada Masahiro、Tanaka Masayuki、Usuda Tomonori
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1
  • DOI: 10.1093/pasj/psx051
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Robust covariance estimation of galaxy?galaxy weak lensing: validation and limitation of jackknife covariance (2017)
  • Author(s): Shirasaki Masato、Takada Masahiro、Miyatake Hironao、Takahashi Ryuichi、Hamana Takashi、Nishimichi Takahiro、Murata Ryoma
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 470 Issue: 3 Pages: 3476-3496
  • DOI: 10.1093/mnras/stx1477
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Reconstruction of halo power spectrum from redshift-space galaxy distribution: cylinder-grouping method and halo exclusion effect (2017)
  • Author(s): Okumura Teppei、Takada Masahiro、More Surhud、Masaki Shogo
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 469 Issue: 1 Pages: 459-475
  • DOI: 10.1093/mnras/stx850
  • Peer Reviewed
• [Journal Article] Large-scale tidal effect on redshift-space power spectrum in a finite-volume survey (2017)
  • Author(s): Akitsu Kazuyuki、Takada Masahiro、Li Yin
  • Journal Title: Physical Review D Volume: 95 Issue: 8
  • DOI: 10.1103/physrevd.95.083522
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Reconstruction of halo power spectrum from redshift-space galaxy distribution: cylinder-grouping method and halo exclusion effect (2017)
  • Author(s): T. Okumura, M. Takada, S. More, S. Masaki
  • Journal Title: MNRAS Volume: 印刷中
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Large-scale tidal effect on redshift-space power spectrum in a finite-volume survey (2017)
  • Author(s): K. Akitsu, M. Takada, Y. Li
  • Journal Title: Phys. Rev. D. Volume: 印刷中
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Detection of stacked filament lensing between SDSS luminous red galaxies (2016)
  • Author(s): J. Clampitt, H. Miyatake, B. Jain, M. Takada
  • Journal Title: MNRAS Volume: 457 Issue: 3 Pages: 2391-2400
  • DOI: 10.1093/mnras/stw142
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Detection of the Splashback Radius and Halo Assembly Bias of Massive Galaxy Clusters (2016)
  • Author(s): S. More, H. Miyatake, M. Takada et al. (13 co-authors)
  • Journal Title: The Astrophysical Journal Volume: 825 Issue: 1 Pages: 39-39
  • DOI: 10.3847/0004-637x/825/1/39
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). I. Discovery of 15 Quasars and Bright Galaxies at 5.7 < z < 6.9 (2016)
  • Author(s): Y. Matsuoka et al. (including M. Takada, the 35th in 39 co-authors)
  • Journal Title: The Astrophysical Journal Volume: 828 Issue: 1 Pages: 26-39
  • DOI: 10.3847/0004-637x/828/1/26
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A New Milky Way Satellite Discovered in the Subaru/Hyper Suprime-Cam Survey (2016)
  • Author(s): Homma, D., China, M., Okamoto, S. et al.
  • Journal Title: Astrophysical Journal Volume: 832 Issue: 1 Pages: 21-26
  • DOI: 10.3847/0004-637x/832/1/21
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Prime Focus Spectrograph (PFS) for the Subaru telescope: overview, recent progress, and future perspectives (2016)
  • Author(s): N. Tamura et al. (including M. Takada, the 90th in 100 co-authors)
  • Journal Title: Proceedings of the SPIE Volume: 9908 Pages: 99081-99081
  • DOI: 10.1117/12.2232103
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Separate universe consistency relation and calibration of halo bias (2016)
  • Author(s): Y. Li, W. Hu, M. Takada
  • Journal Title: Phys. Rev. D Volume: 93 Issue: 6
  • DOI: 10.1103/physrevd.93.063507
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Evidence of Halo Assembly Bias in Massive Clusters (2016)
  • Author(s): H. Miyatake, S. More, M. Takada et al.
  • Journal Title: Phys. Rev. Letters Volume: 116 Issue: 4 Pages: 041301-041301
  • DOI: 10.1103/physrevlett.116.041301
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Geometrical constraint on curvature with BAO experiments (2015)
  • Author(s): M. Takada, O. Dore
  • Journal Title: Phys. Rev. D Volume: 92 Issue: 12
  • DOI: 10.1103/physrevd.92.123518
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Detection of universality of dark matter profile from Subaru weak lensing measurements of 50 massive clusters (2015)
  • Author(s): H. Niikura, M. Takada et al.
  • Journal Title: Publ. Atron. Soc. Japan Volume: 67 Issue: 6
  • DOI: 10.1093/pasj/psv090
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Properties of Weak Lensing Clusters Detected on Hyper Suprime-Cam's 2.3 deg^2 Field (2015)
  • Author(s): Satoshi Miyazaki et al
  • Journal Title: Astrophysical Journal Volume: 807 Issue: 1 Pages: 22-22
  • DOI: 10.1088/0004-637x/807/1/22
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Weak Lensing Signal and the Clustering of BOSS Galaxies. II (2015)
  • Author(s): S. More, H. Miyatake, M. Takada et al.
  • Journal Title: The Astrophys. J. Volume: 806 Issue: 1 Pages: 2-2
  • DOI: 10.1088/0004-637x/806/1/2
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The Weak Lensing Signal and the Clustering of BOSS Galaxies. I. Measurements (2015)
  • Author(s): H. Miyatake, S. More, M. Takada et al.
  • Journal Title: The Astrophys. J. Volume: 806 Issue: 1 Pages: 1-1
  • DOI: 10.1088/0004-637x/806/1/1
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] Earth-mass BH? PBH constraints with OGLE (2019)
  • Author(s): Masahiro Takada
  • Organizer: Accelerating Universe in the Dark
  • Int'l Joint Research
• [Presentation] すばるHSC-Y1 cosmic shear Bモードパワースペクトルを用いた背景重力波の制限 (2019)
  • Author(s): 栗田智貴
  • Organizer: 日本天文学会2019年春季年会
• [Presentation] M31星に対する原始ブラックホールのマイクロレンジングへの波動効果の影響 (2019)
  • Author(s): 杉山素直
  • Organizer: 日本天文学会2019年春季年会
• [Presentation] Cosmology with Subaru Hyper Suprime-Cam imaging survey (2018)
  • Author(s): Masahiro Takada
  • Organizer: Recontres du Vietnam "Windows on the Universe
  • Int'l Joint Research / Invited
• [Presentation] Cosmology with Subaru HSC cosmic shear (2018)
  • Author(s): Masahiro Takada
  • Organizer: The Nonlinear Universe 2018
  • Int'l Joint Research / Invited
• [Presentation] Subaru Prime Focus Spectrograph (2018)
  • Author(s): Masahiro Takada
  • Organizer: Studying the Universe with GAlaxy suRveys Revealing the Unlimited in ShangHai
  • Int'l Joint Research / Invited
• [Presentation] Towards Precision Cosmology with Halos (2018)
  • Author(s): Masahiro Takada
  • Organizer: Statistical challenges for large-scale structure in the era of LSST
  • Int'l Joint Research / Invited
• [Presentation] Super-survey tidal effects in redshift space (2018)
  • Author(s): 秋津一之
  • Organizer: 日本天文学会2018年秋季年会
• [Presentation] アンドロメダ銀河の広視野観測による原始ブラックホール探査 II (2018)
  • Author(s): 新倉広子
  • Organizer: 日本天文学会2018年秋季年会
• [Presentation] すばるPFSが拓く宇宙論: ダークエネルギー、ニュートリノ質量、重力理論 (2018)
  • Author(s): 高田昌広
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] Cosmology and Neutrinos (2018)
  • Author(s): Masahiro Takada
  • Organizer: Unification and Development of the Neutrino Science Frontier
  • Int'l Joint Research / Invited
• [Presentation] Subaru HSC constraint on primordial black holes and SuMIRe project (2018)
  • Author(s): Masahiro Takada
  • Organizer: YKIS 2018
  • Int'l Joint Research / Invited
• [Presentation] Discovery of RCB-type stars from dense-cadence HSC observation of M31 and its implication (2018)
  • Author(s): Masahiro Takada
  • Organizer: Subaru Users Meeting FY2017
  • Int'l Joint Research
• [Presentation] Microlensing constraints on 10^{-10}Msun-scale primordial black holes from high-cadence observation of M31 with Hyper Suprime-Cam (2017)
  • Author(s): Masahiro Takada
  • Organizer: Next-generation cosmology with large-scale structure: CosKASI-ICG-NAOC-YITP joint workshop
  • Int'l Joint Research / Invited
• [Presentation] Exploring fundamental physics with Subaru wide-area galaxy surveys (2017)
  • Author(s): Masahiro Takada
  • Organizer: Progress in particle physics: 2017
  • Invited
• [Presentation] Halo Emulator: Application to SDSS clusters (2017)
  • Author(s): Masahiro Takada
  • Organizer: The Nonlinear Universe
  • Int'l Joint Research / Invited
• [Presentation] 重力レンズ効果による暗黒エネルギー・暗黒物質の探索 (2017)
  • Author(s): 高田昌広
  • Organizer: 日本物理学会秋季年会
  • Invited
• [Presentation] Subaru large surveys (HSC and PFS) (2017)
  • Author(s): Masahiro Takada
  • Organizer: Subaru International Partnership Science and Instrumentation Workshop
  • Place of Presentation: NAOJ, Tokyo, Japan
  • Int'l Joint Research / Invited
• [Presentation] 有限体積銀河サーベイの宇宙論統計量に対する大スケールゆらぎの影響 -- Super Sample Effect (2016)
  • Author(s): 高田昌広
  • Organizer: 天文学会2016年春季年会
  • Place of Presentation: 首都大学東京 （東京都八王子市）
  • Year and Date: 2016-03-16
• [Presentation] Connecting Halo (peak) and Galaxy (2016)
  • Author(s): Masahiro Takada
  • Organizer: Statistics of Extrema in Large-Scale Structure
  • Place of Presentation: Leiden University, Leiden, the Netherlands
  • Year and Date: 2016-03-07
  • Int'l Joint Research / Invited
• [Presentation] 宇宙構造形成の研究の最近の進展 (2016)
  • Author(s): 高田昌広
  • Organizer: 理論天文学宇宙物理学懇談会シンポジウム
  • Place of Presentation: 東北大学
  • Invited
• [Presentation] Tightest upper bound on the abundance of PBH with dense-cadence HSC observation of M31 (2016)
  • Author(s): Masahiro Takada
  • Organizer: The 6th Subaru international conference "Panoramas of the Evolving Cosmos"
  • Place of Presentation: International Conference Center Hiroshima(広島県広島市）
  • Int'l Joint Research
• [Presentation] 宇宙の大規模構造による宇宙論 (2016)
  • Author(s): 高田昌広
  • Organizer: 第5回観測的宇宙論研究会
  • Place of Presentation: 広島大学
  • Invited
• [Presentation] Neutrinos from lensing surveys I (2016)
  • Author(s): Masahiro Takada
  • Organizer: Neutrinos and Light Particles in Cosmology
  • Place of Presentation: UC Berkeley, Berkeley, USA
  • Int'l Joint Research / Invited
• [Presentation] A proposal/discussion on Subaru HSC Ultra-Wide Survey (for Euclid) (2016)
  • Author(s): Masahiro Takada
  • Organizer: Euclid Consortium Meeting 2016
  • Place of Presentation: Centro Cultural de Belem, Lisbon, Portugal
  • Int'l Joint Research / Invited
• [Presentation] SuMIRe: Subaru imaging and spectroscopic galaxy surveys (2016)
  • Author(s): Masahiro Takada
  • Organizer: Cross-correlation Spectacular with LSST: Exploring Synergies Between LSST and External Datasets to Discover Fundamental Physics
  • Place of Presentation: Brookhaven National Lab & Stony Brook University, Stony Brook, USA
  • Int'l Joint Research / Invited
• [Presentation] Halo bias (2015)
  • Author(s): Masahiro Takada
  • Organizer: Cosmology and First Light
  • Place of Presentation: Institut Astrophysique de Paris, Paris, France
  • Year and Date: 2015-12-07
  • Int'l Joint Research / Invited
• [Presentation] Why does the Universe speed up? - Exhausted study and challenge for the future (2015)
  • Author(s): Masahiro Takada
  • Organizer: Unification and Development of the Neutrino Science Frontier
  • Place of Presentation: ニューウェルシティー湯河原 (静岡県熱海市泉)
  • Year and Date: 2015-12-01
  • Int'l Joint Research / Invited
• [Presentation] Halo bias, super-survey effects and cosmology (2015)
  • Author(s): Masahiro Takada
  • Organizer: Workshop of Observational Cosmology
  • Place of Presentation: 京都大学 (京都府京都市)
  • Year and Date: 2015-11-18
  • Invited
• [Presentation] A pilot survey of transients in M31 - in preparation of LSST (2015)
  • Author(s): Masahiro Takada
  • Organizer: Subaru-Keck Synergy Workshop
  • Place of Presentation: 東北大学 (宮城県仙台市)
  • Year and Date: 2015-09-01
  • Int'l Joint Research / Invited
• [Presentation] Baryon Acoustic Oscillation (2015)
  • Author(s): Masahiro Takada
  • Organizer: New Era of the Cosmic Distance Scale
  • Place of Presentation: 東京大学 (東京都文京区)
  • Year and Date: 2015-06-29
  • Int'l Joint Research / Invited
• [Book] すばるHSC-SSPサーベイ：概要と観測サーベイ設計 (2018)
  • Author(s): 天文月報
  • Total Pages: 8
  • Publisher: 公益社団法人 日本天文学会
• [Remarks] すばる望遠鏡発の精密宇宙論の幕開け！ダークマター、ダークエネルギーの解明を目指して
  • URL: https://www.ipmu.jp/ja/20180926-HSC-S8
• [Remarks] ダークマターは原始ブラックホールではなかった!?
  • URL: https://www.ipmu.jp/ja/20190402-PrimordialBlackHole
• [Remarks] 超広視野主焦点カメラ HSC の初期成果がまとまる
  • URL: https://www.ipmu.jp/ja/20180227-HSC-FirstResults
• [Remarks] 超広視野主焦点カメラ HSC による大規模観測データ、全世界に公開開始
  • URL: http://www.ipmu.jp/ja/20170228-HSC_datarelease
• [Remarks] 銀河系に付随する極めて暗い衛星銀河の発見
  • URL: http://www.ipmu.jp/ja/20161122-FaintDwarf
• [Remarks] 世界初! 銀河団の内部構造とダークマターの深い関係が明らかに
  • URL: http://www.ipmu.jp/ja/20160126-galaxycluster
• [Remarks] Evidence of Halo Assembly Bias in Massive Clusters
  • URL: http://physics.aps.org/articles/v9/9
• [Funded Workshop] Accelerating Universe in the Dark (2019)
• [Funded Workshop] Subaru HSC Collaboraion Meeting (2016)
  • Place of Presentation: ASIAA, Taiwan
  • Year and Date: 2016-01-11
• [Funded Workshop] Subaru PFS Collaboration Meeting (2015)
  • Place of Presentation: LAM, Marseille, France
  • Year and Date: 2015-12-14
• [Funded Workshop] Subaru HSC Collaboration Meeting (2015)
  • Place of Presentation: Prinjceton University
  • Year and Date: 2015-05-13