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Particle dynamics in curved spacetimes

Research Project

Project/Area Number 26400274
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 InstitutionOsaka University

Principal Investigator

Baiotti Luca  大阪大学, 理学研究科, 特任准教授(常勤) (00574047)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords中性子星 / 一般相対性理論 / シミュレーション / 磁場 / General relativity / Numerical relativity / Compact stellar objects / Particle dynamics / magnetic field / particle dynamics / magnetic field particles
Outline of Final Research Achievements

The code we built was used to simulate binary neutron star mergers endowed with magnetic fields. We observed the formation of an organized magnetic field structure, which may be the place where particles are accelerated and subsequently produce gamma rays. Satisfactory simulations of the accelerated particles themselves have not been performed yet, and will be the focus of the continuation of this research. We found that the organized magnetic field structure appears rather independently of the adopted equation of state, mass ratio, and initial magnetic field orientation.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (4 results)

All 2016 2015

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

  • [Journal Article] Binary neutron star mergers and short gamma-ray bursts: Effects of magnetic field orientation, equation of state, and mass ratio2016

    • Author(s)
      Kawamura, Takumu; Giacomazzo, Bruno; Kastaun, Wolfgang; Ciolfi, Riccardo; Endrizzi, Andrea; Baiotti, Luca; Perna, Rosalba
    • Journal Title

      Physical Review D

      Volume: 94 Issue: 6

    • DOI

      10.1103/physrevd.94.064012

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Do triaxial supramassive compact stars exist?2016

    • Author(s)
      K. Uryu, A. Tsokaros, L. Baiotti, F. Galeazzi, N. Sugiyama, K. Taniguchi, and S.i. Yoshida
    • Journal Title

      Physical Review D

      Volume: 94 Issue: 10 Pages: 101302-101302

    • DOI

      10.1103/physrevd.94.101302

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Spectral properties of the post-merger gravitational-wave signal from binary neutron stars2015

    • Author(s)
      Takami Kentaro Rezzolla Luciano Baiotti Luca
    • Journal Title

      Phys. Rev. D

      Volume: 91 Issue: 6 Pages: 1-26

    • DOI

      10.1103/physrevd.91.064001

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Numerical simulations of magnetised neutron stars2016

    • Author(s)
      Luca Baiotti
    • Organizer
      JGRG26
    • Place of Presentation
      Osaka City University, Japan
    • Year and Date
      2016-10-24
    • Related Report
      2016 Annual Research Report

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Published: 2014-04-04   Modified: 2018-03-22  

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