Exploring the origin of cosmic acceleration through cluster mass function and weak lensing

2017 Fiscal Year Annual Research Report

• Project/Area Number: 17H06600
• Research Institution: Nagoya University
• Principal Investigator: 宮武 広直 名古屋大学, 高等研究院(理), 特任助教 (20784937)
• Project Period (FY): 2017-08-25 – 2019-03-31
• Keywords: 宇宙論 / 重力レンズ / 銀河団

Outline of Annual Research Achievements

本年度は、Atacama Cosmology Telescope Polarimeter (ACTPol)が2014年までに取得したデータに基づき、Sunyaev-Zel’dovich (SZ)効果で発見された銀河団のカタログと、すばる望遠鏡Hyper Suprime-Cam(HSC)が2016年までに取得したデータの銀河形状カタログを用いて、銀河団の弱重力レンズ効果の測定を行い、銀河団質量の推定を行った。まず、HSCの銀河形状の系統誤差を精密に評価し、銀河形状カタログを作成した。このカタログはHSCコラボレーション内で広く使われている。宇宙論的な物質の密度揺らぎや各銀河団の個性を考慮に入れた統計誤差を正確にモデル化し、測光的赤方偏移の誤った評価によって引き起こされる系統誤差の評価などを行った。また、測定データをフィットする際に用いる理論モデルとして、ACTPolのSZ銀河団の選択関数や、SZ信号に基づいて推定された質量と弱重力レンズ効果によって測定された真の質量との関係などを組み込んだ理論モデルを構築した。この時に用いる物質分布のプロファイルとして、Navarro-Frenk-White(NFW)プロファイルやバリオン入りのN体シミュレーションに基づいたプロファイルを用いて、理論モデルの不定性を調べる研究を行った。このモデルを測定データにフィットする事により、SZ銀河団質量と真の銀河団質量の間には有意な違いがあり、それは先行研究と整合的であることを示した。重複制限により、本年度が最終年度となったが、以上の研究を通して、本研究の目的であるHSCとACTを用いた銀河団質量関数による宇宙論の制限に必要なツールはほぼ準備できたと言える。

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] Princeton University/NASA Jet Propulsion Laboratory/Carnegie Mellon University(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: Princeton University/NASA Jet Propulsion Laboratory/Carnegie Mellon University
  • # of Other Institutions: 10
• [Int'l Joint Research] University of KwaZulu- Natal(南アフリカ)
  • Country Name: SOUTH AFRICA
  • Counterpart Institution: University of KwaZulu- Natal
• [Int'l Joint Research] University of Toronto/University of British Columbia(カナダ)
  • Country Name: CANADA
  • Counterpart Institution: University of Toronto/University of British Columbia
• [Int'l Joint Research] Academia Sinica(台湾)
  • Country Name: その他の国・地域
  • Counterpart Institution: Academia Sinica
• [Int'l Joint Research] Cardiff University(英国)
  • Country Name: UNITED KINGDOM
  • Counterpart Institution: Cardiff University
• [Int'l Joint Research]
  • # of Other Countries: 3
• [Journal Article] Constraints on the MassRichness Relation from the Abundance and Weak Lensing of SDSS Clusters (2018)
  • Author(s): R. Murata, T. Nishimichi, M. Takada, H. Miyatake, M. Shirasaki, S. More, R. Takahashi, and K. Osato
  • Journal Title: ApJ Volume: 854 Pages: 120
  • DOI: 10.3847/1538-4357/aaaab8
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The first-year shear catalog of the Subaru Hyper Suprime-Cam Subaru Strategic Program Survey (2018)
  • Author(s): R. Mandelbaum, H. Miyatake, T. Hamana, et al.
  • Journal Title: PASJ Volume: 70 Pages: S25
  • DOI: 10.1093/pasj/psx130
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Source selection for cluster weak lensing measurements in the Hyper Suprime-Cam survey (2018)
  • Author(s): E. Medezinski, M. Oguri, A. J. Nishizawa, J. S. Speagle, H. Miyatake, K. Umetsu, A. Leauthaud, R. Murata, R. Mandelbaum, C. Sifon, M. A. Strauss, S. Huang, M. Simet, N. Okabe, M. Tanaka, and Y. Komiyama
  • Journal Title: PASJ Volume: 70 Pages: 30
  • DOI: 10.1093/pasj/psy009
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Planck Sunyaev-Zel’dovich cluster mass calibration using Hyper Suprime-Cam weak lensing (2018)
  • Author(s): E. Medezinski, N. Battaglia, K. Umetsu, M. Oguri, H. Miyatake, A. J. Nishizawa, C. Sifon, D. N. Spergel, I.-N. Chiu, Y.-T. Lin, N. Bahcall, and Y. Komiyama.
  • Journal Title: PASJ Volume: 70 Pages: S28
  • DOI: 10.1093/pasj/psx128
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A large sample of shear-selected clusters from the Hyper Suprime-Cam Subaru Strategic Program S16A Wide field mass maps (2018)
  • Author(s): S. Miyazaki, M. Oguri, T. Hamana, M. Shirasaki, M. Koike, Y. Komiyama, K. Umetsu, Y. Utsumi, N. Okabe, S. More, E. Medezinski, Y.-T. Lin, H. Miyatake, H. Murayama, N. Ota, and I. Mitsuishi
  • Journal Title: PASJ Volume: 70 Pages: S27
  • DOI: 10.1093/pasj/psx120
  • Peer Reviewed / 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): M. Oguri, S. Miyazaki, C. Hikage, R. Mandelbaum, Y. Utsumi, H. Miyatake, M. Takada, R. Arm- strong, J. Bosch, Y. Komiyama, A. Leauthaud, S. More, A. J. Nishizawa, N. Okabe, and M. Tanaka
  • Journal Title: PASJ Volume: 70 Pages: S26
  • DOI: 10.1093/pasj/psx070
  • Peer Reviewed / 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 (2018)
  • Author(s): A. J. Nishizawa, M. Oguri, T. Oogi, S. More, T. Nishimichi, M. Nagashima, Y.-T. Lin, R. Mandel- baum, M. Takada, N. Bahcall, J. Coupon, S. Huang, H.-Y. Jian, Y. Komiyama, A. Leauthaud, L. Lin, H. Miyatake, S. Miyazaki, and M. Tanaka
  • Journal Title: PASJ Volume: 70 Pages: S24
  • DOI: 10.1093/pasj/psx106
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Multiwavelength study of X-ray luminous clusters in the Hyper Suprime-Cam Subaru Strategic Program S16A field (2018)
  • Author(s): K. Miyaoka, N. Okabe, T. Kitaguchi, et al.
  • Journal Title: PASJ Volume: 70 Pages: S22
  • DOI: 10.1093/pasj/psx132
  • Peer Reviewed / 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, Y.-T. Lin, S.-C. Lin, A. J. Nishizawa, A. More, S. More, B.-C. Hsieh, E. Medezinski, H. Miy- atake, H.-Y. Jian, L. Lin, M. Takada, N. Okabe, J. S. Speagle, J. Coupon, A. Leauthaud, R. H. Lupton, S. Miyazaki, P. A. Price, M. Tanaka, I.-N. Chiu, Y. Komiyama, Y. Okura, M. M. Tanaka, and T. Usuda
  • Journal Title: PASJ Volume: 70 Pages: S20
  • DOI: 10.1093/pasj/psx042
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] First data release of the Hyper Suprime-Cam Subaru Strategic Program (2018)
  • Author(s): H. Aihara, R. Armstrong, S. Bickerton, et al.
  • Journal Title: PASJ Volume: 70 Pages: S8
  • DOI: 10.1093/pasj/psx081
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Hyper Suprime-Cam software pipeline (2018)
  • Author(s): J. Bosch, R. Armstrong, S. Bickerton, et al.
  • Journal Title: PASJ Volume: 70 Pages: S5
  • DOI: 10.1093/pasj/psx081
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Hyper Suprime-Cam SSP Survey: Overview and survey design (2018)
  • Author(s): H. Aihara, N. Arimoto, R. Armstrong, et al.
  • Journal Title: PASJ Volume: 70 Pages: S4
  • DOI: 10.1093/pasj/psx066
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The on-site quality-assurance system for Hyper Suprime-Cam: OSQAH (2018)
  • Author(s): H. Furusawa, M. Koike, T. Takata, et al.
  • Journal Title: PASJ Volume: 70 Pages: S3
  • DOI: 10.1093/pasj/psx079
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Hyper Suprime-Cam: Camera dewar design (2018)
  • Author(s): Y. Komiyama, Y. Obuchi, H. Nakaya, Y. Kamata, S. Kawanomoto, Y. Utsumi, S. Miyazaki, F. Uraguchi, H. Furusawa, T. Morokuma, T. Uchida, H. Miyatake, S. Mineo, H. Fujimori, H. Aihara, H. Karoji, J. E. Gunn, and S.-Y. Wang
  • Journal Title: PASJ Volume: 70 Pages: S2
  • DOI: 10.1093/pasj/psx069
  • Peer Reviewed / 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, et al.
  • Journal Title: PASJ Volume: 70 Pages: S1
  • DOI: 10.1093/pasj/psx063
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Fundamental physics from future weak-lensing calibrated Sunyaev-Zel’dovich galaxy cluster counts (2017)
  • Author(s): M. S. Madhavacheril, N. Battaglia, and H. Miyatake
  • Journal Title: PRD Volume: 96(10) Pages: 103525
  • DOI: 10.1103/PhysRevD.96.103525
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Robust covariance estimation of galaxygalaxy weak lensing: validation and limitation of jackknife covariance (2017)
  • Author(s): M. Shirasaki, M. Takada, H. Miyatake, R. Takahashi, T. Hamana, T. Nishimichi, and R. Murata
  • Journal Title: MNRAS Volume: 470 Pages: 3476-3496
  • DOI: 10.1093/mnras/stx1477
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Hyper Suprime-Cam Weak Lensing Measurement of Galaxy Clusters Selected by Atacama Cosmology Telescope Polarimeter (2018)
  • Author(s): Hironao Miyatake
  • Organizer: Stanford Cosmology Seminar, Stanford University
  • Int'l Joint Research / Invited
• [Presentation] Hyper Suprime-Cam Weak Lensing Measurement of Galaxy Clusters Selected by Atacama Cosmology Telescope Polarimeter (2017)
  • Author(s): Hironao Miyatake
  • Organizer: Brown Astrophysics Seminar Series, Brown University
  • Int'l Joint Research
• [Presentation] Hyper Suprime-Cam Weak Lensing Measurement of Galaxy Clusters Selected by Atacama Cosmology Telescope Polarimeter (2017)
  • Author(s): Hironao Miyatake
  • Organizer: Galaxies & Cosmology Seminar, Harvard University
  • Int'l Joint Research / Invited