• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Mergers of binary neutron star systems

Research Project

Project/Area Number 22740163
Research Category

Grant-in-Aid for Young Scientists (B)

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

Principal Investigator

BAIOTTI Luca  大阪大学, レーザーエネルギー学研究センター, 特任助教 (00574047)

Project Period (FY) 2010 – 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: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords中性子星 / 一般相対性理論 / 数値シミュレーション / 磁気流体力学 / ブラックホール / 降着円盤 / 重力波 / ガンマ線バースト
Research Abstract

Gamma-ray bursts(GRBs) are among the most violent phenomena in the Universe. Just one GRB may emit as much energy as ten billion Suns. In the few seconds of its life, a GRB may outshine its own galaxy.
The central engine of GRBs is however still unknown. In order to solve this enigma, numerical solutions(simulations) of the Einstein, matter, and magnetic-field equations must be obtained. One type of GRBs(short in duration) is thought to originate from the merger of binary neutron star systems(BNSs). By investigating such systems in my simulations, I see the growth and organization of the initially small magnetic field in a funnel-like shape that may contain the jet that produces GRBs. This is a step forward the understanding of this mysterious phenomenon.
The other part of my work focused on computing gravitational waves, to provide templates for gravitational-wave detectors, like the KAGRA project recently started in Japan.

Report

(3 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • Research Products

    (33 results)

All 2012 2011 2010

All Journal Article (14 results) (of which Peer Reviewed: 13 results) Presentation (19 results)

  • [Journal Article] The missing link : Merging neutron stars naturally produce jet-like structures and can power short gamma-ray bursts2011

    • Author(s)
      Rezzolla L., Giacomazzo B., Baiotti L., Granot J., Kouveliotou C., Aloy M. A.
    • Journal Title

      Ap. J. Lett

      Volume: 732

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Accurate numerical simulations of inspiralling binary neutron stars and their comparison with effective-one-body analytical models2011

    • Author(s)
      Baiotti L., Damour T., Giacomazzo B., Nagar A., Rezzolla L.
    • Journal Title

      Phys. Rev

      Volume: D84

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] General Relativistic Simulations of Binary Neutron Star Mergers2011

    • Author(s)
      B. Giacomazzo, L. Rezzolla, L. Baiotti, D. Link, J. A. Font
    • Journal Title

      AIP Conference Proceedings

      Volume: 1358 Pages: 187-190

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Journal Article] Accurate evolutions of inspirailling and magnetized neutron stars : Equalmass binaries2011

    • Author(s)
      Giacomazzo B., Rezzolla L., Baiotti L.
    • Journal Title

      Phys.Rev.D

      Volume: 83

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The missing link : Merging neutron stars naturally produce jet-like structures and can power short gamma-ray bursts2011

    • Author(s)
      Rezzolla L., Giacomazzo B., Baiotti L., Granot J., Kouveliotou C., Aloy M.A.
    • Journal Title

      Ap.J.Lett.

      Volume: 732 Issue: 1 Pages: L6-L6

    • DOI

      10.1088/2041-8205/732/1/l6

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Accurate numerical simulations of inspiralling binary neutron stars and their comparison with effective-one-body analytical models2011

    • Author(s)
      Baiotti L., Damour T., Giacomazzo B., Nagar A., Rezzolla L.
    • Journal Title

      Phys.Rev.D

      Volume: 84 Issue: 2

    • DOI

      10.1103/physrevd.84.024017

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Accurate evolutions of inspiralling and magnetized neutron stars : Equal-mass binaries2011

    • Author(s)
      Giacomazzo B., Rezzolla L., Baiotti L.
    • Journal Title

      Phys.Rev.D

      Volume: 83

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Accurate evolutions of unequal-mass neutron-star binaries : properties ofthe torus andshort GRB engines2010

    • Author(s)
      Rezzolla L., Baiotti L., Giacomazzo B., Link D., Font J. A.
    • Journal Title

      Class. Quantum Grav

      Volume: 27 Pages: 114105-114140

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Binary neutron-starmergers with Whisky and SACRA : First quantitative comparison of results from independent general-relativistic hydrodynamics codes2010

    • Author(s)
      Baiotti L., Shibata M
    • Journal Title

      Phys. Rev

      Volume: D82

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Analytic modelling of tidal effects in the relativistic inspiral of binary neutron stars2010

    • Author(s)
      Baiotti L., Damour T., Giacomazzo B., Nagar A., Rezzolla L.
    • Journal Title

      Phys. Rev. Lett

      Volume: 105

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Accurate evolutions of inspiralling and magnetized neutron stars : Equal-mass binaries2010

    • Author(s)
      Giacomazzo B., Rezzolla L., Baiotti L.
    • Journal Title

      Phys. Rev

      Volume: D83

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Accurate evolutions of unequal-mass neutron-star binaries : properties of the torus and short GRB engines2010

    • Author(s)
      Rezzolla L., Baiotti L., Giacomazzo B., Link D., Font J.A.
    • Journal Title

      Class.Quantum Grav.

      Volume: 27 Pages: 114105-114140

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Binary neutron-star mergers with Whisky and SACRA : First quantitative comparison of results from independent general-relativistic hydrodynamics codes2010

    • Author(s)
      Baiotti L., Shibata M.
    • Journal Title

      Phys.Rev.D

      Volume: 82

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analytic modelling of tidal effects in the relativistic inspiral of binary neutron stars2010

    • Author(s)
      Baiotti L., Damour T., Giacomazzo B., Nagar A., Rezzolla L.
    • Journal Title

      Phys.Rev.Lett.

      Volume: 105

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Gravitational waves from simulations of binary neutron stars2012

    • Author(s)
      Baiotti L.
    • Organizer
      LCGT(KAGRA) F2F meeting
    • Place of Presentation
      東京大学
    • Year and Date
      2012-02-01
    • Related Report
      2011 Final Research Report
  • [Presentation] Gravitational waves from simulations of binary neutron stars2011

    • Author(s)
      Baiotti L.
    • Organizer
      ICGC2011
    • Place of Presentation
      Goa(India)
    • Year and Date
      2011-12-15
    • Related Report
      2011 Final Research Report
  • [Presentation] Gravitational waves from simulations of binary neutron stars2011

    • Author(s)
      Baiotti L.
    • Organizer
      ICGC2011
    • Place of Presentation
      Goa (India)
    • Year and Date
      2011-12-15
    • Related Report
      2011 Annual Research Report
  • [Presentation] GRMHD simulations of binary neutron-star mergers2011

    • Author(s)
      Baiotti L.
    • Organizer
      CCP2011
    • Place of Presentation
      Gatlinburg(USA)
    • Year and Date
      2011-10-31
    • Related Report
      2011 Final Research Report
  • [Presentation] GRMHD simulations of binary neutron-star mergers2011

    • Author(s)
      Baiotti L.
    • Organizer
      CCP2011
    • Place of Presentation
      Gatlinburg (USA)
    • Year and Date
      2011-10-31
    • Related Report
      2011 Annual Research Report
  • [Presentation] Numerical simulations of binary neutron star mergers2011

    • Author(s)
      Baiotti L.
    • Organizer
      日本物理学会
    • Place of Presentation
      弘前大学
    • Year and Date
      2011-09-17
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] Binary neutron-star simulations and gamma-ray bursts2011

    • Author(s)
      Baiotti L.
    • Organizer
      International school on numerical relativity and gravitational waves
    • Place of Presentation
      APCTP, Pohang(Korea)
    • Year and Date
      2011-07-30
    • Related Report
      2011 Final Research Report
  • [Presentation] Binary neutron-star simulations and gamma-ray bursts2011

    • Author(s)
      Baiotti L.
    • Organizer
      International school on numerical relativity and gravitational waves
    • Place of Presentation
      APCTP, Pohang (Korea)
    • Year and Date
      2011-07-30
    • Related Report
      2011 Annual Research Report
  • [Presentation] Introduction to numerical relativity2011

    • Author(s)
      Baiotti L.
    • Organizer
      TIARA winter 2011
    • Place of Presentation
      NTHU Hsinchu(Taiwan)
    • Related Report
      2011 Final Research Report
  • [Presentation] GENERAL-RELATIVISTIC SIMULATIONS OF BINARY NEUTRON-STARMERGERS2011

    • Author(s)
      Baiotti L.
    • Organizer
      EAYAM 2011
    • Place of Presentation
      Jeju(Korea)
    • Related Report
      2011 Final Research Report
  • [Presentation] GENERAL-RELATIVISTIC SIMULATIONS OF BINARY NEUTRON-STAR MERGERS2011

    • Author(s)
      Baiotti L.
    • Organizer
      EAYAM 2011
    • Place of Presentation
      Jeiu (Korea)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Merger of binary neutron stars2010

    • Author(s)
      Baiotti L.
    • Organizer
      GR19
    • Place of Presentation
      Mexico City(Mexico)
    • Related Report
      2011 Final Research Report
  • [Presentation] GENERAL-RELATIVISTIC SIMULATIONS OF BINARY NEUTRON-STARMERGERS2010

    • Author(s)
      Baiotti L.
    • Organizer
      Korean Physical Society Meeting(招待講演)
    • Place of Presentation
      Pyeonchang(Korea)
    • Related Report
      2011 Final Research Report
  • [Presentation] GENERAL-RELATIVISTIC SIMULATIONS OF BINARY NEUTRON-STARMERGERS2010

    • Author(s)
      Baiotti L.
    • Organizer
      Korean Physical Society Meeting(招待講演)
    • Place of Presentation
      Seoul(Korea)
    • Related Report
      2011 Final Research Report
  • [Presentation] GENERAL-RELATIVISTIC SIMULATIONS OF BINARY NEUTRON-STARMERGERS2010

    • Author(s)
      Baiotti L.
    • Organizer
      EANAM 2010
    • Place of Presentation
      NTU Taipei(Taiwan)
    • Related Report
      2011 Final Research Report
  • [Presentation] Merger of binary neutron stars2010

    • Author(s)
      Baiotti L.
    • Organizer
      GR19
    • Place of Presentation
      Mexico City (Mexico)
    • Related Report
      2010 Annual Research Report
  • [Presentation] GENERAL-RELATIVISTIC SIMULATIONS OF BINARY NEUTRON-STAR MERGERS2010

    • Author(s)
      Baiotti L.
    • Organizer
      Korean Physical Society Meeting
    • Place of Presentation
      Pyeonchang (Korea)(招待講演)
    • Related Report
      2010 Annual Research Report
  • [Presentation] GENERAL-RELATIVISTIC SIMULATIONS OF BINARY NEUTRON-STAR MERGERS2010

    • Author(s)
      Baiotti L.
    • Organizer
      APCTP workshop
    • Place of Presentation
      Seoul (Korea)(招待講演)
    • Related Report
      2010 Annual Research Report
  • [Presentation] GENERAL-RELATIVISTIC SIMULATIONS OF BINARY NEUTRON-STAR MERGERS2010

    • Author(s)
      Baiotti L.
    • Organizer
      EANAM 2010
    • Place of Presentation
      Taipei (Taiwan)
    • Related Report
      2010 Annual Research Report

URL: 

Published: 2010-08-23   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi