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

Numerical modeling of the central engine of short gamma-ray bursts

Research Project

Project/Area Number 18H01213
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
Research InstitutionKyoto University

Principal Investigator

Kiuchi Kenta  京都大学, 基礎物理学研究所, 特任准教授 (40514196)

Co-Investigator(Kenkyū-buntansha) 井岡 邦仁  京都大学, 基礎物理学研究所, 教授 (80402759)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Keywords重力波 / 連星中性子星合体 / ガンマ線バースト / 数値相対論 / 連星中性子星 / ショートガンマ線バースト / ブラックホールー中性子星合体 / 相対論的天体物理学
Outline of Final Research Achievements

GW170817 is the first binary neutron star merger event associated with the electromagnetic counterpart AT 2017gfo and SGRB 170817A. The multimessenger astronomy era was heralded since then. This event is the smoking gun of the merger hypothesis of the gamma-ray burst. Also, it is the smoking gun for the rapid-neutron capture nucleosynthesis, which results in the thermal electromagnetic emission in the near-infrared, optical, and ultra-violet band. In such an exciting era, the role of numerical relativity simulation is to interpret/predict gravitational wave events. In this project, we developed the neutrino-radiation magnetohydrodynamics-numerical relativity code, which is one of the most progress codes in the world.

Academic Significance and Societal Importance of the Research Achievements

アインシュタインがおおよそ100年前に構築した一般相対性理論は、我々の日常生活に欠かせないものとなっているGlobal Positioning Systemに決定的な役割を果たしている。この端的な例からわかるように、理論物理学の研究で得られる成果は社会生活に直結するまでに長い時間を要することが多い。本研究課題では数値シミュレーションにより、重力波イベントで何が起きたかを解釈・予言することを究極目標としているが、本研究課題で開発された世界で最も進んだ数値プログラムを使用して得らる結果は、重力波物理学研究の核心をなすものである。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (40 results)

All 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (5 results) Journal Article (22 results) (of which Int'l Joint Research: 18 results,  Peer Reviewed: 21 results,  Open Access: 11 results) Presentation (12 results) (of which Int'l Joint Research: 9 results,  Invited: 12 results) Remarks (1 results)

  • [Int'l Joint Research] マックスプランク重力物理学研究所(ドイツ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Max Planck Institute(ドイツ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Max Planck Institute(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Tel Aviv University/Hebrew University(イスラエル)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Princeton University(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Fallback Accretion Halted by R-process Heating in Neutron Star Mergers and Gamma-Ray Bursts2021

    • Author(s)
      Ishizaki Wataru、Kiuchi Kenta、Ioka Kunihito、Wanajo Shinya
    • Journal Title

      The Astrophysical Journal

      Volume: 922 Issue: 2 Pages: 185-185

    • DOI

      10.3847/1538-4357/ac23d9

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fallback Accretion Model for the Years-to-decades X-Ray Counterpart to GW1708172021

    • Author(s)
      Ishizaki Wataru、Ioka Kunihito、Kiuchi Kenta
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 916 Issue: 2 Pages: L13-L13

    • DOI

      10.3847/2041-8213/ac1120

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evolution of bare quark stars in full general relativity: Single star case2021

    • Author(s)
      Zhou Enping、Kiuchi Kenta、Shibata Masaru、Tsokaros Antonios、Ury? K?ji
    • Journal Title

      Physical Review D

      Volume: 103 Issue: 12 Pages: 123011-123011

    • DOI

      10.1103/physrevd.103.123011

    • NAID

      120007166779

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Reducing orbital eccentricity in initial data of black hole?neutron star binaries in the puncture framework2021

    • Author(s)
      Kyutoku Koutarou、Kawaguchi Kyohei、Kiuchi Kenta、Shibata Masaru、Taniguchi Keisuke
    • Journal Title

      Physical Review D

      Volume: 103 Issue: 2 Pages: 023002-023002

    • DOI

      10.1103/physrevd.103.023002

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Properties of the remnant disk and the dynamical ejecta produced in low-mass black hole-neutron star mergers2021

    • Author(s)
      Hayashi Kota、Kawaguchi Kyohei、Kiuchi Kenta、Kyutoku Koutarou、Shibata Masaru
    • Journal Title

      Physical Review D

      Volume: 103 Issue: 4 Pages: 043007-043007

    • DOI

      10.1103/physrevd.103.043007

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Alternative possibility of GW190521: Gravitational waves from high-mass black hole-disk systems2021

    • Author(s)
      Shibata Masaru、Kiuchi Kenta、Fujibayashi Sho、Sekiguchi Yuichiro
    • Journal Title

      Physical Review D

      Volume: 103 Issue: 6 Pages: 063037-063037

    • DOI

      10.1103/physrevd.103.063037

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Mass ejection from disks surrounding a low-mass black hole: Viscous neutrino-radiation hydrodynamics simulation in full general relativity2020

    • Author(s)
      Fujibayashi Sho、Shibata Masaru、Wanajo Shinya、Kiuchi Kenta、Kyutoku Koutarou、Sekiguchi Yuichiro
    • Journal Title

      Physical Review D

      Volume: 101 Issue: 8 Pages: 083029-083029

    • DOI

      10.1103/physrevd.101.083029

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sub-radian-accuracy gravitational waves from coalescing binary neutron stars in numerical relativity. II. Systematic study on the equation of state, binary mass, and mass ratio2020

    • Author(s)
      Kiuchi, K., Kawaguchi, K., Kyutoku, K., Sekiguchi, Y., & Shibata, M.
    • Journal Title

      Physical Review D

      Volume: 101 Issue: 8 Pages: 84006-84006

    • DOI

      10.1103/physrevd.101.084006

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Postmerger Mass Ejection of Low-mass Binary Neutron Stars2020

    • Author(s)
      Fujibayashi Sho、Wanajo Shinya、Kiuchi Kenta、Kyutoku Koutarou、Sekiguchi Yuichiro、Shibata Masaru
    • Journal Title

      The Astrophysical Journal

      Volume: 901 Issue: 2 Pages: 122-122

    • DOI

      10.3847/1538-4357/abafc2

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Reanalysis of the binary neutron star mergers GW170817 and GW190425 using numerical-relativity calibrated waveform models2020

    • Author(s)
      Narikawa Tatsuya、Uchikata Nami、Kawaguchi Kyohei、Kiuchi Kenta、Kyutoku Koutarou、Shibata Masaru、Tagoshi Hideyuki
    • Journal Title

      Physical Review Research

      Volume: 2 Issue: 4 Pages: 043039-043039

    • DOI

      10.1103/physrevresearch.2.043039

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Viscous evolution of a massive disk surrounding stellar-mass black holes in full general relativity2020

    • Author(s)
      Fujibayashi Sho、Shibata Masaru、Wanajo Shinya、Kiuchi Kenta、Kyutoku Koutarou、Sekiguchi Yuichiro
    • Journal Title

      Physical Review D

      Volume: 102 Issue: 12 Pages: 123014-123014

    • DOI

      10.1103/physrevd.102.123014

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On the possibility of GW190425 being a black hole--neutron star binary merger2020

    • Author(s)
      Koutarou Kyutoku, Sho Fujibayashi, Kota Hayashi, Kyohei Kawaguchi, Kenta Kiuchi, Masaru Shibata, Masaomi Tanaka
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 890 Issue: 1 Pages: 4-4

    • DOI

      10.3847/2041-8213/ab6e70

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Revisiting the lower bound on tidal deformability derived by AT 2017gfo2019

    • Author(s)
      Kenta Kiuchi, Koutarou Kyutoku, Masaru Shibata, Keisuke Taniguchi
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 876 Issue: 2 Pages: L31-L31

    • DOI

      10.3847/2041-8213/ab1e45

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Non-thermal afterglow of the binary neutron star merger GW170817: a more natural modelling of electron energy distribution leads to a qualitatively different new solution2019

    • Author(s)
      Lin Haoxiang、Totani Tomonori、Kiuchi Kenta
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 485 Issue: 2 Pages: 2155-2166

    • DOI

      10.1093/mnras/stz453

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Constraint on the maximum mass of neutron stars using GW170817 event2019

    • Author(s)
      Shibata Masaru、Zhou Enping、Kiuchi Kenta、Fujibayashi Sho
    • Journal Title

      Physical Review D

      Volume: 100 Issue: 2 Pages: 023015-023015

    • DOI

      10.1103/physrevd.100.023015

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Discrepancy in tidal deformability of GW170817 between the Advanced LIGO twin detectors2019

    • Author(s)
      Tatsuya Narikawa, Nami Uchikata, Kyohei Kawaguchi, Kenta Kiuchi, Koutarou Kyutoku, Masaru Shibata, Hideyuki Tagoshi
    • Journal Title

      Physical Review Research

      Volume: 1 Issue: 3 Pages: 033055-033055

    • DOI

      10.1103/physrevresearch.1.033055

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Jet Propagation in Neutron Star Mergers and GW1708172019

    • Author(s)
      Hamidani Hamid、Kiuchi Kenta、Ioka Kunihito
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 1 Pages: 1-1

    • DOI

      10.1093/mnras/stz3231

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nonthermal afterglow of the binary neutron star merger GW170817: A more natural modeling of electron energy distribution leads to a qualitatively different new solution2019

    • Author(s)
      Lin H.、Totani T.、Kiuchi K.
    • Journal Title

      Astronomische Nachrichten

      Volume: 340 Issue: 1-3 Pages: 213-216

    • DOI

      10.1002/asna.201913591

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Mass Ejection from the Remnant of a Binary Neutron Star Merger: Viscous-radiation Hydrodynamics Study2018

    • Author(s)
      Fujibayashi Sho、Kiuchi Kenta、Nishimura Nobuya、Sekiguchi Yuichiro、Shibata Masaru
    • Journal Title

      The Astrophysical Journal

      Volume: 860 Issue: 1 Pages: 64-64

    • DOI

      10.3847/1538-4357/aabafd

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Repeating and non-repeating fast radio bursts from binary neutron star mergers2018

    • Author(s)
      Yamasaki Shotaro、Totani Tomonori、Kiuchi Kenta
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 印刷中 Issue: 3 Pages: 39-39

    • DOI

      10.1093/pasj/psy029

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Global simulations of strongly magnetized remnant massive neutron stars formed in binary neutron star mergers2018

    • Author(s)
      Kiuchi Kenta、Kyutoku Koutarou、Sekiguchi Yuichiro、Shibata Masaru
    • Journal Title

      Physical Review D

      Volume: 97 Issue: 12 Pages: 124039-124039

    • DOI

      10.1103/physrevd.97.124039

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synchrotron Radiation from the Fast Tail of Dynamical Ejecta of Neutron Star Mergers2018

    • Author(s)
      Hotokezaka Kenta , Kiuchi Kenta , Shibata Masaru , Nakar Ehud , Piran Tsvi
    • Journal Title

      The Astrophysical Journal

      Volume: 867 Issue: 2 Pages: 95-95

    • DOI

      10.3847/1538-4357/aadf92

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 重力波天文学時代における数値相対論による波源のモデリング2022

    • Author(s)
      木内建太
    • Organizer
      日本物理学会 第77回年次大会(2022年)シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Numerical modeling of gravitational wave sources in the multimessenger era2021

    • Author(s)
      木内建太
    • Organizer
      JGRG30
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent progress of numerical relativity simulations of compact objects and its application to gravitational wave physics2021

    • Author(s)
      木内建太
    • Organizer
      RESCEU Summer School
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Theoretical modeling of binary neutron star mergers: Recent progress and future prospect2020

    • Author(s)
      Kenta Kiuchi
    • Organizer
      Invited colloquium at GRAPPA
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] A theoretical modeling of EM and GW emission for binary neutron star mergers2019

    • Author(s)
      Kenta Kiuchi
    • Organizer
      IGC@25 Multimessenger Universe
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent progress of a numerical modeling of binary neutron star mergers in numericalrelativity2019

    • Author(s)
      Kenta Kiuchi
    • Organizer
      CoCoNuT 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Current status of a numerical modeling of binary neutron star mergers and short gamma-ray bursts2019

    • Author(s)
      Kenta Kiuchi
    • Organizer
      GRB 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Systematic error for the neutron star tidal deformability estimation in GW170817/AT2017gfo2019

    • Author(s)
      Kenta Kiuchi
    • Organizer
      Gravitational wave searches and parameter estimation in the era of detections
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Introduction to a numerical modeling of binary neutron star mergers2018

    • Author(s)
      Kenta Kiuchi
    • Organizer
      Workshop/School on Recent Developments in Gravitational Waves and Astrophysics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Binary Neutron Star Merge2018

    • Author(s)
      Kenta Kiuchi
    • Organizer
      Workshop on Jet and Shock breakout in Cosmic transient
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Constraining the nuclear equation of state by gravitational waves2018

    • Author(s)
      Kenta Kiuchi
    • Organizer
      Workshop on r-Process and Unstable Nuclei in Multi-messenger Astronomy
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Frontiers in Numerical Relativity2018

    • Author(s)
      Kenta Kiuchi
    • Organizer
      2019 YITP Asia-Pacific Winter School and Workshop on Gravitation and Cosmology
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Remarks] Homepage of Kenta Kiuchi

    • URL

      http://www2.yukawa.kyoto-u.ac.jp/~kenta.kiuchi/

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report 2019 Annual Research Report 2018 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi