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Numerical study for merger of black hole-neutron star binaries

Research Project

Project/Area Number 19540263
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 InstitutionThe University of Tokyo

Principal Investigator

SHIBATA Masaru  The University of Tokyo, 大学院・総合文化研究科, 准教授 (80252576)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2007: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords宇宙物理(理論) / 相対論 / 重力波 / ブラックホール / 中性子星 / 宇宙物理
Research Abstract

完全に一般相対論的なシミュレーションを系統的に実行して、ブラックホールと中性子星からなる連星の合体前の状態、中性子星が合体前に潮汐破壊される条件、合体過程、合体後誕生する天体の特徴、放射される重力波の波形、合体後に誕生するブラックホール周りの降着園パンの性質などを明らかにした。特に、合体後にブラックホールと降着円盤からなる系が誕生する条件を明らかにし、また中性子星が潮汐破壊される場合には、破壊時に放射される重力波の波形から中性子星の半径に対して制限を与えることが可能であることを示した。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (16 results)

All 2008 2007

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (7 results)

  • [Journal Article] High-velocity collision of two black holes2008

    • Author(s)
      M. Shibata, H. Okawa, and T. Yamamoto
    • Journal Title

      Phys.Rev.D 78

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Simulating coalescing compact binaries by a new code(SACRA)2008

    • Author(s)
      T. Yamamoto, M. Shibata, and K. Taniguchi
    • Journal Title

      Phys.Rev.D 78

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Merger of black hole and neutron star in general relativity : Tidal disruption, torus mass, andgravitational waves2008

    • Author(s)
      M. Shibata and K. Taniguchi
    • Journal Title

      Phys.Rev.D 77

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Merger of black hole-neutron star binaries in full general relativity2008

    • Author(s)
      M. Shibata and K. Uryu
    • Journal Title

      Classical and Quantum gravity 24

      Pages: 125-137

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Merger of black hole and neutron star in general relativity: Tidal disruption, torus mass, and gravitational wave2008

    • Author(s)
      M. Shibata and K. Taniguchi
    • Journal Title

      Physical Review D 77

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simulating coalescing compact binaries by a new code(SACRA)2008

    • Author(s)
      T. Yamamoto, M. Shibata, K. Taniguchi
    • Journal Title

      Physical Review D 78

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Merger of black hole and neutron star in full general relativity: Tidal disruption, torus mass and2008

    • Author(s)
      M. Shibata and K. Taniguchi
    • Journal Title

      Physical Review D 掲載予定

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Merger of black hole-neutron star binaries in full general relativity2007

    • Author(s)
      M. Shibata and K. Uryu
    • Journal Title

      Classical and Quantum Gravity 24

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetohydrodynamics of neutrino cooled accretion tori around a rotating black hole in general2007

    • Author(s)
      M. Shibata, Y. I. Sekiguchi, R. Takahashi
    • Journal Title

      Progress of Theroretical Physics 118

      Pages: 257-302

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] ブラックホール・中性子星連星の準平衡形状2008

    • Author(s)
      久徳浩太郎
    • Organizer
      日本物理学会
    • Place of Presentation
      山形大学 小白川キャンパス
    • Year and Date
      2008-09-22
    • Related Report
      2008 Annual Research Report
  • [Presentation] 中性子星連星の合体と重力波2008

    • Author(s)
      木内健太、柴田大、谷口敬介
    • Organizer
      日本物理学会2008年秋季大会
    • Place of Presentation
      山形大学
    • Related Report
      2008 Final Research Report
  • [Presentation] ブラックホール・中性子星連星の準平衡形状2008

    • Author(s)
      久徳浩太郎、柴田大、谷口敬介
    • Organizer
      日本物理学会2008年秋季大会
    • Place of Presentation
      山形大学
    • Related Report
      2008 Final Research Report
  • [Presentation] Simulating coalescencing compact binaries in GR2008

    • Author(s)
      M. Shibata
    • Organizer
      in Numerical modeling ofastrophysical sources ofgravitational radiation
    • Place of Presentation
      Valencia, Spain
    • Related Report
      2008 Final Research Report
  • [Presentation] ブラックホールと中性子星の連星の合体2007

    • Author(s)
      柴田 大
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] ブラックホールと中性子星の連星の合体2007

    • Author(s)
      柴田大、瓜生康史
    • Organizer
      日本物理学会2007年秋季年会
    • Place of Presentation
      北海道大学
    • Related Report
      2008 Final Research Report
  • [Presentation] Merger of black holeand neutron star2007

    • Author(s)
      M. Shibata
    • Organizer
      in Astrophysics ofcompact objects
    • Place of Presentation
      Huangshan, China
    • Related Report
      2008 Final Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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