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Searching for gravitational wave backgrounds with LCGT

Research Project

Project/Area Number 24540269
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionKyoto University

Principal Investigator

Seto Naoki  京都大学, 理学(系)研究科(研究院), 助教 (80462191)

Project Period (FY) 2012-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords重力波 / 連星 / 三体系 / 宇宙論 / 一般相対論
Outline of Final Research Achievements

As for gravitational wave backgrounds, I studied 1) the information that can be extracted from inflation background and 2) possibility of detecting line-like gravitational wave background by the correlation analysis. I also examined astrophysical systems (e.g. binaries) that emit gravitational waves. In particular, I studied hierarchical triple systems.

Report

(5 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (12 results)

All 2016 2015 2014 2013 2012

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 2 results,  Acknowledgement Compliant: 3 results) Presentation (4 results)

  • [Journal Article] Prospects of eLISA for Detecting Galactic Binary Black Holes Similar to GW1509142016

    • Author(s)
      N. Seto
    • Journal Title

      MNRAS in press

      Volume: - Issue: 1 Pages: 1-1

    • DOI

      10.1093/mnrasl/slw060

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Search for an emission line of a gravitational wave background2015

    • Author(s)
      Atsushi Nishizawa and Naoki Seto
    • Journal Title

      PRD

      Volume: 91 Issue: 12 Pages: 122001-122001

    • DOI

      10.1103/physrevd.91.122001

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Probability distribution function for inclinations of merging compact binaries detected by gravitational wave interferometers2015

    • Author(s)
      N. Seto
    • Journal Title

      MNRAS

      Volume: 446 Pages: 2887-2994

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pre-merger localization of eccentric compact binary coalescences with second-generation gravitational-wave detector networks2014

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

      MNRAS

      Volume: 441 Pages: 1934-1942

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Highly Eccentric Kozai Mechanism and Gravitational-Wave Observation for Neutron-Star Binaries2013

    • Author(s)
      N. Seto
    • Journal Title

      Phys. Rev. Lett

      Volume: 111 Issue: 6 Pages: 1106-1106

    • DOI

      10.1103/physrevlett.111.061106

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [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
      2012 Research-status 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
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Enhanced exploration for primordial black holes using pulsar timing arrays2012

    • Author(s)
      Kazumi kashiyama and Naoki Seto
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 426 Issue: 2 Pages: 1369-1373

    • DOI

      10.1111/j.1365-2966.2012.21935.x

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] スペース重力波アンテナDECIGO計画(69):DECIGOのサイエンス2016

    • Author(s)
      瀬戸直樹 DECIGOワーキンググループ
    • Organizer
      日本物理学会 第71回年次大会
    • Place of Presentation
      東北学院大学(仙台市)
    • Year and Date
      2016-03-21
    • Related Report
      2015 Annual Research Report
  • [Presentation] スペース重力波アンテナDECIGO計画(60):DECIGOのサイエンス2015

    • Author(s)
      瀬戸直樹他 DECIGOワーキンググループ
    • Organizer
      日本物理学会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-23
    • Related Report
      2014 Research-status Report
  • [Presentation] DECIGO計画(50): DECIGOのサイエンス2014

    • Author(s)
      瀬戸直樹 DECIGOワーキンググループ
    • Organizer
      日本物理学会
    • Place of Presentation
      東海大学(平塚市)
    • Related Report
      2013 Research-status Report
  • [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
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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