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Study of the equation of state for dark energy and distribution of dark matter by gravitational lensing

Research Project

Project/Area Number 15540248
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

FUTAMASE Toshifumi  Tohoku Univ., Graduate School of Science, Professor, 大学院・理学研究科, 教授 (20209141)

Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2005: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2004: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2003: ¥1,300,000 (Direct Cost: ¥1,300,000)
Keywordsgravitational lens / cold dark matter / Subaru Telescope / Clusters of galaxies / density profile / backreaction on cosmic expansion / 弱い重力レンズ / 暗黒物質 / ハッブル宇宙望遠鏡 / 構造形成 / 残り重力レンズ / ミンコスフキー汎関数 / X線観測
Research Abstract

After the precise determination of the cosmological parameters by the observation of Cosmic Microwave Background Radiation, the understanding structure formation of the universe is one of the unsolved and important problem in cosmology. It is well known that dark matter plays a decisive role in this formation and gravitational lens is the only method to observe directly the dark matter. Thus the observation of gravitational lens is very important. In this point of view we performed the observational studies of various gravitational lens phenomena and obtained the following results.
1.We performed weak lens analysis of the date from the observations of a distant cluster of galaxies using the Prime forcus came of Subaru Telescope. The cluster is regarded to be at the forming stage. According to our analysis, the distribution of dark matter is well correlated with the distribution of galaxies. This result support the prediction of Cold Dark Matter (CDM) Structure formation scenario.
2.We ha … More ve performed strong lens analysis based on Hubble space telescope (HST) and weak lens analysis based on Subaru telescope for a nearby cluster of galaxies A 1689, and determined a precise mass distribution. This gives us a precise determination of the mass of the cluster and density profile. The global shape of the obtained profile coincides with the prediction of the CDM scenario, but we found that the concentration of the density in the central region is much larger than the prediction. We have proposed more observation of cluster of galaxies to HST and Subaru, and accepted partially.
3.We have discovered a new cluster of galaxies by weak lens analysis in the region of a distant cluster of galaxies. This indicates the power of the lens analysis to discover cluster of galaxies.
4.We have studied the back reaction of an inhomogeneous distribution of matter on the expansion of the universe and found that the effect behaves like the positive spatial curvature and does not change to the acceleration of the expansion. Less

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (28 results)

All 2006 2005 2004 2003 Other

All Journal Article (26 results) Publications (2 results)

  • [Journal Article] Toward a No-go Theorem for a Accelarating Universe by Nonlinear Backreaction2006

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

      Progress of Theoretical Physics 115

      Pages: 827-827

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Cosmology with High-redshift Galaxy Survey : Neutrino Mass and Inflation2006

    • Author(s)
      M.Takada, E.Komatsu, T.Futamase
    • Journal Title

      Physical Review D 73

      Pages: 83520-83520

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Toward a No-go Theorem for a Accelarating Univers by Nonlinear Backreaction2006

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

      Progress of Theoretical Physics 115

      Pages: 827-827

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Cosmology with High-redshift Galaxy Survey : Neutrino mass and Inflation2006

    • Author(s)
      M.Takada, E.Komatsu, T.Futamase
    • Journal Title

      Physical Review D 73

      Pages: 83520-83520

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] The Surprisingly Steep Mass Profile of A1689 from a lensing Analysis of Subaru Images2005

    • Author(s)
      T.Broadhurs, M.Takada, K.Umetsu, X.Kong, N.Arimoto, M.Chiba, T.Futamase
    • Journal Title

      Astrophysical Journal Letters 619

      Pages: 145-145

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Panoramic Views of Cluster-Scale Assembly Explored by Subaru Wide-Field Imaging2005

    • Author(s)
      K.Kodama et al.(including T.Futamase)
    • Journal Title

      Publication of Astronomical Society in Japan, 57

      Pages: 309-309

    • NAID

      10023936667

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Discovery of a Strong Lensing Galaxy at z=3.9 behind a z=0.89 Galaxy Cluster2005

    • Author(s)
      K.Umetsu, M.Tanaka, K.Kodama, I.Tanaka, T.Futamase, N.Kashikawa
    • Journal Title

      Publication of Astronomical Society in Japan, 57

      Pages: 887-887

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Observation results by the TAMA 300 detector on gravitational wave burst from stellar core collapse2005

    • Author(s)
      M.Ando, TAMA collaboration (including T.Futamase)
    • Journal Title

      Physical Review D 71

      Pages: 82002-82002

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] The Surprisingly Steep Mass Profile of A1689 from leasing Anallysis of Subaru Images2005

    • Author(s)
      T.Broadhurst et al.(including T.Futamase)
    • Journal Title

      Astrophysical Journal Letters 619

      Pages: 145-145

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Panoramic Views of Cluster-Scale Assembly Explored by Subaru Wide-Field Imaging2005

    • Author(s)
      K.Kodama at al.(including T.Futamase)
    • Journal Title

      Publ.of Astronomical Society in Japan 57

      Pages: 309-309

    • NAID

      10023936667

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Discovery of Strong Lensing Galaxy at z=3.9 behind a z=0.89 Galaxy Cluster2005

    • Author(s)
      K.Unetsu at al.(including T.Futamase)
    • Journal Title

      Publ.of Astronomical Society in Japan 57

      Pages: 887-887

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Observation results by TAMA 300 detector on gravitational wave burst from steller core cllapse2005

    • Author(s)
      M.Ando, TAMA collaboration (including T.Futamase)
    • Journal Title

      Physical Review D 71

      Pages: 82002-82002

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Discovery of a Strong Lensing Galaxy at z=3.9 behind a z=0.89 Galaxy luster2005

    • Author(s)
      K.Umetsu, M.Tanaka, K.Kodama, I.Tanaka, T.Futamase, N.Kashikawa
    • Journal Title

      Publication of Astronomical Society in Japan 57

      Pages: 887-887

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Panoramic Views of Cluster-Scale Assembly Explored by Subaru Wide-Field Imaging2005

    • Author(s)
      K.Kodama et al.(including T.Futamase)
    • Journal Title

      Publication of Astronomical Society in Japan 57

      Pages: 309-309

    • NAID

      10023936667

    • Related Report
      2005 Annual Research Report
  • [Journal Article] The Surprisinglly Steep Mass Profile of A1689 from a lensing Analysis of Subaru Images2005

    • Author(s)
      T.Broadhurs, M.Takada, K.Umetsu, X.Kong, N.Arimoto, M.Chiba, T.Futamase
    • Journal Title

      Astrophysical Journal Letters 619

      Pages: 143-143

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Observation results by the TAMA 300 detector on gravitational wave burst from steller core collapse2005

    • Author(s)
      M.Ando, TAMA collaboration(including T.Futamase)
    • Journal Title

      Physical Review D 71

      Pages: 82002-82002

    • Related Report
      2005 Annual Research Report
  • [Journal Article] The Surprisingly Steep Mass Profile of A1689,from Lensing Analysis of Subaru Images2005

    • Author(s)
      T.Broadhurst, M.Takada, K.Umetsu, T.Futamase
    • Journal Title

      Astrophysical Journal 619

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Panoramic Views of Cluster-Scale Assemblies Explored by Subaru-Wide Field Images2005

    • Author(s)
      T.Kodama et al.
    • Journal Title

      Publications of the Astronomical Society of Japan 57

      Pages: 45-63

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Numerical analysis of quasinormal modes in nearly extremal Schwarzshild-de Sitter spacetimes2004

    • Author(s)
      S.Yoshida, T.Futamase
    • Journal Title

      Physical Review D 69

      Pages: 64025-64025

    • NAID

      120000775667

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Toward the search for gravitational waves from inspiralling compact binaries in TAMA300 data during 2003 : Data analysis and stability2004

    • Author(s)
      H.Takahashi, TAMA Collaboration (including T.Futamase)
    • Journal Title

      Classical and Quantum Gravity 21

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Hamiltonian of a free neutron in curved spacetime on the Earth2004

    • Author(s)
      T.Morishima, T.Futamase, H.Shimizu
    • Journal Title

      Nuclear Instruments and Methods in Physical Research A 529

      Pages: 187-187

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Toward the search for gravitational waves from inspiralling compact binaries in TAMA 300 data2004

    • Author(s)
      H.Takahashi et al.(including T.Futamase)
    • Journal Title

      Classical and Quantum Gravity 21

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical analysis of quasinormal modes in nearly extremal Schwarzshild-de Sitter snacetimes2004

    • Author(s)
      S.Yoshida, T.Futamase
    • Journal Title

      Physical Review D63

    • Related Report
      2004 Annual Research Report
  • [Journal Article] New derivation of a third post-Newtonian equation of motion for relativistic compact binaries without ambiguity2003

    • Author(s)
      Y.Itoh, T.Futamase
    • Journal Title

      Physical Review D 68

      Pages: 121501-121501

    • NAID

      120000775666

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Coincident analysis to search for inspiralling compact binaries2003

    • Author(s)
      H.Takahashi, TAMA Collaboration (including T.Futamase)
    • Journal Title

      Classical and Quantum Gravity 20

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Coincident analysis to search for inspiralling compact binaries2003

    • Author(s)
      H.Takahashi et al.(including T.Futamase)
    • Journal Title

      Classical and Quantum Gravity 20

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Publications] Y.Itoh, T.Futamase: "New derivation of a third Post-Newtonian equation of Motion"Physical Review D. 68. 121501-121505 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] J.Sato, K.Umetsu, T.Futamase, T.Yamada: "The Topology of a Weak Lensing Field in the Neighborhood of MS 1054-03"Astrophysical Journal. 582. L62-L65 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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