Development of 3+1 dimensional gravitational lensing numerical simulation method for precision cosmology researches

• Project/Area Number: 26400285
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: National Astronomical Observatory of Japan
• Principal Investigator: Hamana Takashi 国立天文台, 理論研究部, 助教 (70399301)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 観測的宇宙論 / 宇宙物理

Outline of Final Research Achievements

The purposes of this research project are (1) to construct accurate theoretical models of gravitational lensing effects by large-scale structures, and (2) to generate the mock observational data of gravitational lensing surveys. To achieve these goals, we developed the numerical simulation program suite for a full-sky gravitational lensing ray-tracing simulation, and generated data-set of the full sky gravitational lensing data. We utilized the data-set to estimate the sample variance of the number counts of galaxy clusters detected by gravitational lensing technique, and to evaluate the covariance matrix of galaxy-galaxy lensing effects.

Research Products

• [Int'l Joint Research] Princeton University/Carnegie Mellon University(米国)
• [Journal Article] The very wide-field gzK Galaxy Survey - II. The relationship between star-forming galaxies at z~2 and their host haloes based upon HOD modelling (2016)
  • Author(s): Ishikawa, Shogo; Kashikawa, Nobunari; Hamana, Takashi; Toshikawa, Jun; Onoue, Masafusa
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 458 Issue: 1 Pages: 747-758
  • DOI: 10.1093/mnras/stw271
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Probing cosmology with weak lensing selected clusters. II. Dark energy and f(R) gravity models (2016)
  • Author(s): Shirasaki, M., Hamana, T., Yoshida, N.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Issue: 1 Pages: 414-414
  • DOI: 10.1093/pasj/psv105
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Cosmological constraints from Subaru weak lensing cluster counts (2015)
  • Author(s): Hamana, T., Sakurai, J., Koike, M., Miller, L.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 67 Issue: 3 Pages: 34-49
  • DOI: 10.1093/pasj/psv034
  • 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] Probing cosmology with weak lensing selected clusters - I. Halo approach and all-sky simulations (2015)
  • Author(s): Shirasaki, M., Hamana, T., Yoshida, N.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 453 Issue: 3 Pages: 3043-3067
  • DOI: 10.1093/mnras/stv1854
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] The X-ray properties of weak-lensing-selected galaxy clusters (2015)
  • Author(s): Giles P. A., Maughan B. J., Hamana T., Miyazaki S., Birkinshaw M., Ellis R. S., Massey R.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 447 Issue: 4 Pages: 3044-3059
  • DOI: 10.1093/mnras/stu2679
  • Peer Reviewed
• [Journal Article] Reducing Systematic Error in Weak Lensing Cluster Surveys (2014)
  • Author(s): Utsumi Yousuke, Miyazaki Satoshi, Geller Margaret J., Dell'Antonio Ian P., Oguri Masamune, Kurtz Michael J., Hamana Takashi, Fabricant Daniel G.
  • Journal Title: The Astrophysical Journal Volume: 786 Issue: 2 Pages: 93-114
  • DOI: 10.1088/0004-637x/786/2/93
  • Peer Reviewed
• [Journal Article] Universal profiles of the intracluster medium from Suzaku X-ray and Subaru weak-lensing observations (2014)
  • Author(s): N. Okabe, K. Uetsu, T. Tamura, Y. Fujita, M. Takizawa, Y.-Y. Zhang, K. Matsushita, T. Hamana, Y. Fukazawa, Yasushi, T. Futamase, M. Kawaharada, S. Miyazaki, Y. Mochizuki, K. Nakazawa, T. Ohashi, N. Ota, T. Sasaki, K. Sato, S. Tam
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 66 Issue: 5 Pages: 99-99
  • DOI: 10.1093/pasj/psu075
  • Peer Reviewed / Open Access
• [Presentation] 全天重力レンズマップの作成2 (2016)
  • Author(s): 高橋龍一, 浜名崇, 白崎正人
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛大学（愛媛県・松山市）
  • Year and Date: 2016-09-14
• [Presentation] Cosmological constraints from Subaru weak lensing cluster counts (2015)
  • Author(s): Takashi Hamana
  • Organizer: Theoretical and Observational Progress on the Large-scale Structure of the Universe
  • Place of Presentation: Headquarters of the European Southern Observatory （ミュンヘン・ドイツ）
  • Year and Date: 2015-07-20
  • Int'l Joint Research
• [Presentation] Weak lensing peak countsによるmass-concentration関係の制限 (2014)
  • Author(s): 浜名崇
  • Organizer: 第３回観測的宇宙論研究会
  • Place of Presentation: 名古屋大学（名古屋市）
  • Year and Date: 2014-11-27
• [Remarks] GRayTrix
  • URL: http://th.nao.ac.jp/MEMBER/hamanatk/GRayTrix/index.html