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Study of Dark Energy and Neutrino mass by near future large scale observations

Research Project

Project/Area Number 20K03937
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
Research InstitutionKyoto Sangyo University

Principal Investigator

Futamase Toshifumi  京都産業大学, 理学部, 教授 (20209141)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords大規模銀河サーベイ / 超新星 / 弱い重力レンズ / 赤方偏移と虚栄関係 / すばる望遠鏡 / ハッブルテンション / 非一様時空 / ハッブル定数 / 宇宙の非一様性 / アインシュタイン方程式 / 暗黒エネルギー / 重力波 / ハッブルパラメータ / ニュートリノ質量 / 大規模データ
Outline of Research at the Start

近い将来実現されることがすでに決定している近未来の超大規模銀河サーベイ、超新星サーベイの観測データを用いて、ニュートリノ質量の上限、暗黒エネルギーの時間変化の可能性を調べる。ニュートリノ質量の情報は素粒子の統一理論の可能性にとって重要な上方となる。暗黒エネルギーの時間変化の有無は、その起源についての本質的な情報を与えることで非常に重要である。

Outline of Final Research Achievements

It is known that Dark matterand dark energy occupy about 95% of the energy density of the present universe. I studied the observational method to study these dark side of the universe. In particularwe develope a new method to study weak lesing which is actively used in the observation of dark matter and dark energy.
We show that our method does improve the accuracy of the dark matter distribution compared with the previous method. Also we pointed out that the lensing dispersion in the magnitude-redshift relation obtained from the combination of the observation future supenovae and gravitational wave from merging neutron stars
may be used to observe accurately the natore of dark energy.

Academic Significance and Societal Importance of the Research Achievements

天文学の観測装置、および観測技術は現在進行形で発展し、従来の観測方法ではデータに含まれる化学的状を十分引き出すことはできない。本研究では将来的な観測データが含んでいる科学的情報を十分引き出すための方法を提示し実際に実現可能であることを示した点に学術的意義がある。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (7 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 7 results,  Open Access: 7 results) Book (3 results)

  • [Int'l Joint Research] 中国西南天文研究所(中国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] 台湾中央研究院(その他の国・地域)

    • Related Report
      2020 Research-status Report
  • [Journal Article] The gauge invariant formulation of the local expansion rate driven by the local average density in an inhomogeneous universe2023

    • Author(s)
      M.Tomonaga, M. Kasai, T. Futamase
    • Journal Title

      Progress of THeoretical and EXperimental Physics

      Volume: 2023 Issue: 3

    • DOI

      10.1093/ptep/ptad020

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] New highky precise weak gravitational lensing flexion measurement method based on ERA method2022

    • Author(s)
      Y.Okura and T.Futamase
    • Journal Title

      MOnthly Notices of Riyal atronimical Society

      Volume: 56 Pages: 668-692

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A comment on the averaging in an inhomogeneous cosmology anfd Hubble constant problem.2021

    • Author(s)
      T. Tomonaga and T. Futamase
    • Journal Title

      Progress of Threoretical and Experimental Physics

      Volume: 2021 Issue: 10 Pages: 103-103

    • DOI

      10.1093/ptep/ptab117

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Detection of cosmic magnification via galaxy shear-galaxy number density correlation from HSC survey data2021

    • Author(s)
      X.Liu, D. Liu, Z. Gao, C. Wei, G. Li, L. Fu,T. Futamase, Z. Fun
    • Journal Title

      Physical Review D

      Volume: 103 Issue: 12 Pages: 123504-123504

    • DOI

      10.1103/physrevd.103.123504

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Current status of space gravitational wave antenna DECIGO and B-DECIGO2021

    • Author(s)
      S. Kawamura, H. Shinkai, DECIGO collaboration
    • Journal Title

      Progress of Theoretical Experimental Physics

      Volume: ptab019 Issue: 5 Pages: 103-103

    • DOI

      10.1093/ptep/ptab019

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Standard Candles and Sirens Rescue H_02020

    • Author(s)
      A. Aniket, T. Okumura, T. Futamase
    • Journal Title

      Astrophysical Journal

      Volume: 904 Issue: 2 Pages: 169-169

    • DOI

      10.3847/1538-4357/abbffc

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Survey of Gravitationally lensed Objects in HSC Imaging (SuGOHI) ? V. Group-to-cluster scale lens search from the HSC?SSP Survey2020

    • Author(s)
      Jaelani Anton T、More Anupreeta、Oguri Masamune、Sonnenfeld Alessandro、Suyu Sherry H、Rusu Cristian E、Wong Kenneth C、Chan James H H、Kayo Issha、Lee Chien-Hsiu、Chao Dani C-Y、Coupon Jean、Inoue Kaiki T、Futamase Toshifumi
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 495 Issue: 1 Pages: 1291-1310

    • DOI

      10.1093/mnras/staa1062

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Book] ピーブルス先生の量子力学2022

    • Author(s)
      二間瀬敏史
    • Total Pages
      376
    • Publisher
      丸善書店
    • ISBN
      9784621307076
    • Related Report
      2022 Annual Research Report
  • [Book] ブラックホール2022

    • Author(s)
      二間瀬敏史
    • Total Pages
      224
    • Publisher
      中央公論社
    • ISBN
      9784121026859
    • Related Report
      2022 Annual Research Report
  • [Book] 相対性理論 基礎と応用2020

    • Author(s)
      二間瀬敏史
    • Total Pages
      209
    • Publisher
      朝倉書店
    • ISBN
      9784254131376
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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