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Study on gravitational wave background with network of Interferometers

Research Project

Project/Area Number 20740151
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionKyoto University

Principal Investigator

SETO Naoki (NAOKI Seto)  京都大学, 大学院・理学研究科, 助教 (80462191)

Project Period (FY) 2008 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords重力波 / 宇宙論 / 天文学
Research Abstract

I discussed basic aspects of stochastic gravitational wave background, such as, non-Gaussian nature of the backgrounds, and possibility of individually resolving gravitational wave signals in the pulsar timing band. The fisher matrix analyses are standard tool to evaluate the expected errors of parameter estimation, but I derive a new formulation using geometrical nature of maximum likelihood surfaces.

Report

(6 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report   Self-evaluation Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (26 results)

All 2013 2012 2011 2010 2009 2008

All Journal Article (20 results) (of which Peer Reviewed: 17 results) Presentation (6 results)

  • [Journal Article] Analyses on a relativistic hierarchical resonance with the Hamiltonian approach2013

    • Author(s)
      N. Seto
    • Journal Title

      MNRAS

      Volume: 430 Issue: 1 Pages: 558-570

    • DOI

      10.1093/mnras/sts656

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Geometricalaspects of parameter estimation of astochastic gravitational wavebackground: Beyond the Fisheranalysis2012

    • Author(s)
      N.Seto, K. Kyutoku
    • Journal Title

      Phys.Rev

      Volume: D 86. Pages: 42002-42002

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Geometrical aspects of parameter estimation of a stochastic gravitational wave background: Beyond the Fisher analysis2012

    • Author(s)
      N. Seto and K. Kyutoku
    • Journal Title

      PRD

      Volume: 80 Issue: 4 Pages: 42002-42002

    • DOI

      10.1103/physrevd.86.042002

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Resonant trapping ofstars by merging massive black holebinaries2011

    • Author(s)
      N.Seto, T. Muto
    • Journal Title

      MNRAS 415

      Volume: L38

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Detectorconfiguration of DECIGO/BBO andidentification of cosmologicalneutron-star binaries2011

    • Author(s)
      K. Yagi, N.Seto
    • Journal Title

      Phys.Rev

      Volume: D 81 Pages: 44001-44001

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Detector configuration of DECIGO/BBO and identification of cosmological neutron-starbinaries2011

    • Author(s)
      Yagi, Kent ; Seto, Naoki
    • Journal Title

      PRD 83

      Pages: 4011-4011

    • Related Report
      2010 Self-evaluation Report
  • [Journal Article] Detector configuration of DECIGO/BBO and identification of cosmological neutron-star binaries2011

    • Author(s)
      K.Yagi, N.Seto
    • Journal Title

      Phys.Rev.D

      Volume: 83 Pages: 103004-103004

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Resonant trapping ofstars by merging massive black holebinaries2010

    • Author(s)
      N.Seto, T. Muto
    • Journal Title

      PRD 81

      Volume: 81 Pages: 103004-103004

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Relativistic astrophysics with resonantmultiple inspirals2010

    • Author(s)
      Seto.Naoki ; Muto, Takayuki
    • Journal Title

      PRD 81

      Pages: 3004-3004

    • Related Report
      2010 Self-evaluation Report
  • [Journal Article] Relativistic astrophysics with resonant multiple inspirals2010

    • Author(s)
      N.Seto, T.Muto
    • Journal Title

      Phys.Rev.D

      Volume: 81 Pages: 103004-103004

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Search for memory andinspiral gravitational waves fromsupermassive binary black holes withpulsar timing arrays2009

    • Author(s)
      N.Seto
    • Journal Title

      MNRAS 400

      Volume: 400

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Non-Gaussianity analysis of agravitational wave background made byshort-duration burst signals2009

    • Author(s)
      N.Seto
    • Journal Title

      Phys.Rev

      Volume: D 80. Pages: 43003-43003

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Demagnified gravitationalwaves from cosmological double neutronstars and gravitational waveforeground cleaning around 1 Hz2009

    • Author(s)
      N.Seto
    • Journal Title

      Phys.Rev

      Volume: D 80 Pages: 103001-103001

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Demagnified gravitationalwaves from cosmological double neutronstars and gravitational wave foregroundcleaning around l Hz2009

    • Author(s)
      Naoki Seto
    • Journal Title

      PRD 80

      Pages: 3001-3001

    • Related Report
      2010 Self-evaluation Report
  • [Journal Article] Non-Gaussianity analysis of a gravitational wave background made by short-duration burst signals2009

    • Author(s)
      N.Seto
    • Journal Title

      Phys.Rev.D

      Volume: 80 Pages: 43003-43003

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Search for memory and inspiral gravitational waves from supermassive binary black holes with pulsar timing arrays2009

    • Author(s)
      N.Seto
    • Journal Title

      MNRAS

      Volume: 400 Pages: 38-43

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Demagnified gravitational waves from cosmological double neutron stars and gravitational wave foreground cleaning around 1 Hz2009

    • Author(s)
      N.Seto
    • Journal Title

      Phys.Rev.D

      Volume: 80 Pages: 103003-103003

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Non-Gaussianity Test forDiscriminating Gravitational WaveBackgrounds around 0.1-1 Hz2008

    • Author(s)
      N.Seto
    • Journal Title

      ApJ

      Volume: 683

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Polarization analysis of gravitational-wave backgrounds from the correlation signals of ground-based2008

    • Author(s)
      N. Seto, et.al.
    • Journal Title

      Physical Review D 77

      Pages: 103001-103001

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Non-Gaussianity Test for Discriminating Gravitational Wave Backgrounds around 0.1-1 Hz2008

    • Author(s)
      N. Seto
    • Journal Title

      Astrophysical Journal Letters 683

      Pages: 95-95

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] スペース重力波アンテナDECIGO計画(39):サイエンス2012

    • Author(s)
      瀬戸直樹 他
    • Organizer
      日本物理学会
    • Place of Presentation
      京都産業大
    • Related Report
      2011 Annual Research Report
  • [Presentation] スペー重力波アンテナDECIGO計画 (28)2010

    • Author(s)
      瀬戸直樹
    • Organizer
      物理学会
    • Place of Presentation
      北九州
    • Year and Date
      2010-09-13
    • Related Report
      2011 Final Research Report
  • [Presentation] スペース重力波アンテナDECIGO計画(28)2010

    • Author(s)
      瀬戸直樹
    • Organizer
      物理学会
    • Place of Presentation
      北九州
    • Year and Date
      2010-09-13
    • Related Report
      2010 Self-evaluation Report
  • [Presentation] Relativistic astrophysics with resonant multiple inspirals2010

    • Author(s)
      N.Seto
    • Organizer
      第7回LISAシンポジウム
    • Place of Presentation
      米国スタンフォード大学
    • Year and Date
      2010-06-30
    • Related Report
      2010 Annual Research Report
  • [Presentation] スペー重力波アンテナDECIGO計画 (19)2009

    • Author(s)
      瀬戸直樹
    • Organizer
      物理学会
    • Place of Presentation
      大阪
    • Year and Date
      2009-03-30
    • Related Report
      2011 Final Research Report
  • [Presentation] スペース重力波アンテナDECIGO計画(19)2009

    • Author(s)
      瀬戸直樹
    • Organizer
      物理学会
    • Place of Presentation
      大阪
    • Year and Date
      2009-03-30
    • Related Report
      2010 Self-evaluation Report

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Published: 2008-04-01   Modified: 2016-04-21  

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