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Full particle analysis of electron physics in magnetic reconnection

Research Project

Project/Area Number 17K05673
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Space and upper atmospheric physics
Research InstitutionKobe University (2019)
Kyoto University (2017-2018)

Principal Investigator

Zenitani Seiji  神戸大学, 都市安全研究センター, 特命准教授 (10623952)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords磁気リコネクション / マグネトポーズ / 非対称リコネクション / 相対論リコネクション / プラズマ粒子シミュレーション / PICシミュレーション / 数値解法 / Boris法 / プラズマ非等方性 / プラズマ圧縮性 / 粒子混合
Outline of Final Research Achievements

Using particle-in-cell (PIC) simulations, we have studied the electron kinetic physics in asymmetric magnetic reconnection in the Earth's magnetopause in space. We have clarified the influence of non-adiabatic electron orbits to force-balance and plasma mixing. We have also investigated kinetic properties of relativistic pair-plasma reconnection in high-energy astrophysical settings, by carefully analyzing PIC dataset in a form of energy-momentum tensors. Then we have proposed new algorithms to obtain better simulation results in PIC simulation. Our numerical solvers employ an analytic formula and a subcycling method in the Lorentz-force part of the particle solver.

Academic Significance and Societal Importance of the Research Achievements

磁気リコネクション系を想定して、プラズマの構成粒子の運動を逐一解き進めるPICシミュレーション研究を行った。そして、複雑な(非断熱的な)粒子運動の結果として、マクロ近似(磁気流体近似)では議論できないタイプのプラズマの性質が現れることが明らかになり、当該研究におけるPICシミュレーションの重要性が浮き彫りになった。また、本研究の過程で、PICシミュレーションを高精度化するいくつかの数値解法を提案した。これは磁気リコネクションのみならず、運動論プラズマ現象に依存する全ての研究分野に波及する成果である。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (31 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (5 results) Journal Article (11 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 10 results,  Open Access: 2 results) Presentation (14 results) (of which Int'l Joint Research: 13 results,  Invited: 10 results) Remarks (1 results)

  • [Int'l Joint Research] Universiti Kebangsaan Malaysia(マレーシア)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 山東大学威海校(中国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Space Research Institute(オーストリア)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of Colorado, Boulder/Los Alamos National Laboratory(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Swedish Institute of Space Physics(スウェーデン)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Multiple Boris integrators for particle-in-cell simulation2020

    • Author(s)
      Seiji Zenitani, Tsunehiko N. Kato
    • Journal Title

      Computer Physics Communications

      Volume: 247 Pages: 106954-106954

    • DOI

      10.1016/j.cpc.2019.106954

    • NAID

      120006778279

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Plasmoid-dominated Turbulent Reconnection in a Low-β Plasma2020

    • Author(s)
      Seiji Zenitani, Takahiro Miyoshi
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 894 Issue: 1 Pages: L7-L7

    • DOI

      10.3847/2041-8213/ab8b5d

    • NAID

      120006841700

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermodynamics of Dipolarization Fronts of Magnetic Reconnection in Anisotropic Plasma: MMS Observations and Resistive Double-polytropic MHD Simulations2020

    • Author(s)
      Wai-Leong Teh, Seiji Zenitani
    • Journal Title

      The Astrophysical Journal

      Volume: 890 Issue: 2 Pages: 114-114

    • DOI

      10.3847/1538-4357/ab6d6b

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetohydrodynamic simulation code CANS+: Assessments and applications2019

    • Author(s)
      Matsumoto Yosuke, Asahina Yuta, Kudoh Yuki, Kawashima Tomohisa, Matsumoto Jin, Takahashi Hiroyuki R., Minoshima Takashi, Zenitani Seiji, Miyoshi Takahiro, Matsumoto Ryoji
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 71 Issue: 4 Pages: 83-83

    • DOI

      10.1093/pasj/psz064

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Thermodynamic Properties of Mirror Structures in the Magnetosheath: MMS Observations and Double-polytropic MHD Simulations2019

    • Author(s)
      Wai-Leong Teh, Seiji Zenitani
    • Journal Title

      The Astrophysical Journal

      Volume: 885 Issue: 1 Pages: 22-22

    • DOI

      10.3847/1538-4357/ab4417

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the Boris solver in particle-in-cell simulation2018

    • Author(s)
      S. Zenitani and T. Umeda
    • Journal Title

      Physics of Plasmas

      Volume: 25 Issue: 11 Pages: 112110-112110

    • DOI

      10.1063/1.5051077

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] On the effect of parallel shear flow on the plasmoid instability2018

    • Author(s)
      M. Hosseinpour, Y. Chen, and S. Zenitani
    • Journal Title

      Physics of Plasmas

      Volume: 25 Issue: 10 Pages: 102117-102117

    • DOI

      10.1063/1.5061818

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 相対論的プラズマ粒子シミュレーションのための粒子計算アルゴリズム2018

    • Author(s)
      銭谷誠司・加藤恒彦
    • Journal Title

      生存圏研究

      Volume: 14 Pages: 62-77

    • NAID

      120006540207

    • Related Report
      2018 Research-status Report
  • [Journal Article] Dissipation in relativistic pair-plasma reconnection: revisited2018

    • Author(s)
      Seiji Zenitani
    • Journal Title

      Plasma Physics and Controlled Fusion

      Volume: 60 Issue: 1 Pages: 014028-014028

    • DOI

      10.1088/1361-6587/aa8f17

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Electron dynamics surrounding the X-line in asymmetric magnetic reconnection2017

    • Author(s)
      Zenitani, S., H. Hasegawa, and T. Nagai
    • Journal Title

      Journal of Geophysical Research Space Physics

      Volume: 122 Issue: 7 Pages: 7396-7413

    • DOI

      10.1002/2017ja023969

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mass and energy transfer across the Earth's magnetopause caused by vortex-induced reconnection2017

    • Author(s)
      Nakamura, T. K. M., S. Eriksson, H. Hasegawa, S. Zenitani, W. Y. Li, K. J. Genestreti, R. Nakamura, and W. Daughton
    • Journal Title

      Journal of Geophysical Research Space Physics

      Volume: 122 Issue: 11 Pages: 11505-11522

    • DOI

      10.1002/2017ja024346

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Asymmetric magnetic reconnection at the dayside magnetopause2019

    • Author(s)
      Seiji Zenitani, Hiroshi Hasegawa, Tsugunobu Nagai
    • Organizer
      9th East-Asia School and Workshop on Laboratory, Space, and Astrophysical Plasmas
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Boris-type particle solvers in particle-in-cell (PIC) simulation2019

    • Author(s)
      Seiji Zenitani, Tsunehiko Kato, Takayuki Umeda
    • Organizer
      26th International Conference on Numerical Simulation of Plasmas (ICNSP 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Boris-type particle solvers in particle-in-cell (PIC) simulation2019

    • Author(s)
      Seiji Zenitani, Tsunehiko Kato, Takayuki Umeda
    • Organizer
      3rd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Multiple Boris integrators for particle-in-cell simulation2019

    • Author(s)
      Seiji Zenitani, Tsunehiko Kato
    • Organizer
      AGU Fall Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] プラズマ粒子シミュレーションのための多重 Boris 解法の提案2019

    • Author(s)
      銭谷 誠司、加藤 恒彦
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Reconnecting the dots: Particle dynamics in magnetic reconnection2019

    • Author(s)
      Seiji Zenitani
    • Organizer
      Max-Planck Princeton Center for Plasma Physics (MPPC) Workshop 2019
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Electron Particle Dynamics in Collisionless Magnetic Reconnection2018

    • Author(s)
      Seiji Zenitani
    • Organizer
      The 13th International School / Symposium for Space Simulations (ISSS-13)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Electron physics near the X-line in asymmetric magnetic reconnection2018

    • Author(s)
      S. Zenitani, H. Hasegawa, and T, Nagai
    • Organizer
      2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Electron dynamics surrounding the X line in asymmetric magnetic reconnection2018

    • Author(s)
      Seiji Zenitani, Hiroshi Hasegawa, and Tsugunobu Nagai
    • Organizer
      Fundamental Physical Processes in Solar-Terrestrial Research and Their Relevance to Planetary Physics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Advances in numerical modeling of relativistic magnetic reconnection2017

    • Author(s)
      Seiji Zenitani
    • Organizer
      2017 European Physical Society - Plasma Physics Conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Electron particle dynamics in collisionless magnetic reconnection2017

    • Author(s)
      Seiji Zenitani
    • Organizer
      7th East-Asia School and Workshop on Laboratory, Space, and Astrophysical Plasmas (EASW-7)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Electron particle dynamics in collisionless magnetic reconnection2017

    • Author(s)
      Seiji Zenitani
    • Organizer
      IAPSO-IAMAS-IAGA scientific assembly
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Electron particle dynamics in collisionless magnetic reconnection2017

    • Author(s)
      Seiji Zenitani
    • Organizer
      AAPPS-DPP2017 1st Asia-Pacific Conference on Plasma Physics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Electron dynamics surrounding the X line in asymmetric magnetic reconnection2017

    • Author(s)
      Seiji Zenitani, Hiroshi Hasegawa, and Tsugunobu Nagai
    • Organizer
      AGU Fall Meeting 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Remarks] Magnetopause Reconnection Analyzer

    • URL

      http://rish.kyoto-u.ac.jp/~zenitani/MRA/

    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2022-02-21  

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