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Theoretical studies on evolution of stellar coronae

Research Project

Project/Area Number 21H01124
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 16010:Astronomy-related
Research InstitutionKyoto University

Principal Investigator

Yokoyama Takaaki  京都大学, 理学研究科, 教授 (00311184)

Co-Investigator(Kenkyū-buntansha) 堀田 英之  名古屋大学, 宇宙地球環境研究所, 教授 (10767271)
草野 完也  名古屋大学, 宇宙地球環境研究所, 教授 (70183796)
飯島 陽久  名古屋大学, 宇宙地球環境研究所, 特任助教 (90783952)
金子 岳史  新潟大学, 人文社会科学系, 講師 (40838728)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2023: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2022: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Keywords太陽 / 恒星 / プラズマ / 磁気流体 / コロナ / ダイナモ
Outline of Research at the Start

この10年程で小質量星に関する観測的理解が進展し、まだ理論的には説明することのできない年齢・自転周期・X線活動度の関係が明らかになってきた。本課題では、太陽質量以下の小質量恒星の、スペクトル型・年齢に対応した特徴量が与えられたとき、その磁気コロナ(磁場形成・X線紫外線放射・爆発現象)が、いかなる進化をたどり、背景にある物理が何なのか、を数値シミュレーションにより理論的に明らかにする。

Outline of Final Research Achievements

Regarding stellar dynamo, we carried out large-scale, high-resolution calculations of the Sun's internal magnetothermal convection under the influence of rotation, and succeeded in reproducing the solar differential rotation, which no one had been able to achieve before (Hotta, Kusano). We conducted, for the first time, large-scale calculations to solve coronal heating and solar wind acceleration in a physically consistent manner from the solar surface to 30 solar radii (Iijima, Hotta et al.). Through high-resolution calculations, we showed that the formation of a magnetic tornado structure increases the magnetic energy transport in the solar atmosphere by several times, and succeeded in heating the stellar coronal loop (Kuniyoshi, Yokoyama, Iijima et al.). We conducted a large-scale parametric survey of sunspot formation and clarified the relationship between the solar internal downdraft and surface magnetic energy accumulation (Kaneko, Hotta, Toriumi, Kusano et al.).

Academic Significance and Societal Importance of the Research Achievements

本研究成果の学術的意義は、星コロナの磁気ループ描像を、物理的整合性がある第一原理計算に基づく統合モデルとして発展させたことにある。星の差動回転、星コロナ形成について、ad hocな仮定を最小にとどめた大規模数値計算を実行することで、小質量星とその惑星環境のX線紫外線環境について理論的にロバストなモデルを構築し、恒星進化と惑星系進化の理解に貢献したといえる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (99 results)

All 2024 2023 2022 2021

All Journal Article (14 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 14 results,  Open Access: 14 results) Presentation (83 results) (of which Int'l Joint Research: 36 results,  Invited: 27 results) Book (2 results)

  • [Journal Article] Can the Solar p-modes Contribute to the High-frequency Transverse Oscillations of Spicules?2024

    • Author(s)
      Kuniyoshi Hidetaka、Shoda Munehito、Morton Richard J.、Yokoyama Takaaki
    • Journal Title

      The Astrophysical Journal

      Volume: 960 Issue: 2 Pages: 118-118

    • DOI

      10.3847/1538-4357/ad1038

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Magnetic Tornado Properties: A Substantial Contribution to the Solar Coronal Heating via Efficient Energy Transfer2023

    • Author(s)
      Kuniyoshi Hidetaka、Shoda Munehito、Iijima Haruhisa、Yokoyama Takaaki
    • Journal Title

      The Astrophysical Journal

      Volume: 949 Issue: 1 Pages: 8-8

    • DOI

      10.3847/1538-4357/accbb8

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Scale-dependent analysis of angular momentum flux in high-resolution magnetohydrodynamic simulations for solar differential rotation2023

    • Author(s)
      Mori K、Hotta H
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 524 Issue: 3 Pages: 4746-4751

    • DOI

      10.1093/mnras/stad2196

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Turbulent convection as a significant hidden provider of magnetic helicity in solar eruptions2023

    • Author(s)
      Toriumi Shin、Hotta Hideyuki、Kusano Kanya
    • Journal Title

      Nature Scientific Reports

      Volume: 13 Issue: 1 Pages: 8994-8994

    • DOI

      10.1038/s41598-023-36188-z

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Comprehensive Simulation of Solar Wind Formation from the Solar Interior: Significant Cross-field Energy Transport by Interchange Reconnection near the Sun2023

    • Author(s)
      Iijima Haruhisa、Matsumoto Takuma、Hotta Hideyuki、Imada Shinsuke
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 951 Issue: 2 Pages: L47-L47

    • DOI

      10.3847/2041-8213/acdde0

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Solar horizontal flow evaluation using neural network and numerical simulations with snapshot data2023

    • Author(s)
      Masaki Hiroyuki、Hotta Hideyuki、Katsukawa Yukio、Ishikawa Ryohtaroh T
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 75 Issue: 6 Pages: 1168-1182

    • DOI

      10.1093/pasj/psad063

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dynamics of Large-Scale Solar Flows2023

    • Author(s)
      Hotta Hideyuki、Bekki Yuto、Gizon Laurent、Noraz Quentin、Rast Mark
    • Journal Title

      Space Science Reviews

      Volume: 219 Issue: 8 Pages: 77-77

    • DOI

      10.1007/s11214-023-01021-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Mean-field Analysis on Large-scale Magnetic Fields at High Reynolds Numbers2022

    • Author(s)
      Shimada Ryota、Hotta Hideyuki、Yokoyama Takaaki
    • Journal Title

      The Astrophysical Journal

      Volume: 935 Issue: 1 Pages: 55-55

    • DOI

      10.3847/1538-4357/ac7e43

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Generation of Solar-like Differential Rotation2022

    • Author(s)
      Hotta H.、Kusano K.、Shimada R.
    • Journal Title

      The Astrophysical Journal

      Volume: 933 Issue: 2 Pages: 199-199

    • DOI

      10.3847/1538-4357/ac7395

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Investigation of the dependence of angular momentum transport on spatial scales for construction of differential rotation2022

    • Author(s)
      Mori K、Hotta H
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 519 Issue: 2 Pages: 3091-3097

    • DOI

      10.1093/mnras/stac3804

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Recurrent Large‐Scale Solar Proton Events Before the Onset of the Wolf Grand Solar Minimum2022

    • Author(s)
      Miyahara Hiroko、Tokanai Fuyuki、Moriya Toru、Takeyama Mirei、Sakurai Hirohisa、Ohyama Motonari、Horiuchi Kazuho、Hotta Hideyuki
    • Journal Title

      Geophysical Research Letters

      Volume: 49 Issue: 5 Pages: 1-8

    • DOI

      10.1029/2021gl097201

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Solar differential rotation reproduced with high-resolution simulation2021

    • Author(s)
      Hotta H.、Kusano K.
    • Journal Title

      Nature Astronomy

      Volume: 5 Issue: 11 Pages: 1100-1102

    • DOI

      10.1038/s41550-021-01459-0

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fast Magnetic Wave Could Heat the Solar Low-beta Chromosphere2021

    • Author(s)
      Wang Yikang、Yokoyama Takaaki、Iijima Haruhisa
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 916 Issue: 2 Pages: L10-L10

    • DOI

      10.3847/2041-8213/ac10c7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A New Broadening Technique of the Numerically Unresolved Solar Transition Region and Its Effect on the Spectroscopic Synthesis Using Coronal Approximation2021

    • Author(s)
      Iijima Haruhisa、Imada Shinsuke
    • Journal Title

      The Astrophysical Journal

      Volume: 917 Issue: 2 Pages: 65-65

    • DOI

      10.3847/1538-4357/ac07a5

    • NAID

      120007190682

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Numerical modeling studies for SOLAR-C by the science task team in Japan2024

    • Author(s)
      T. Yokoyama
    • Organizer
      SOLAR-C Science Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quiet Sun small-scale brightening initiated by a magnetic tornado2024

    • Author(s)
      H. Kuniyoshi, S. Bose, & T. Yokoyama
    • Organizer
      SOLAR-C SWG meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Radiative MHD modeling of magnetically open corona2024

    • Author(s)
      H. Iijima, T. Matsumoto, H. Hotta, and S. Imada
    • Organizer
      SOLAR-C Science Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 対流層からコロナまでコロナループ全体を自己整合的に再現する輻射磁気流体シミュレーションの開発状況2024

    • Author(s)
      国吉秀鷹、横山央明
    • Organizer
      日本天文学会2024年春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] コロナループに突発的な加熱が生じた場合のプラズマ凝縮発生条件について2024

    • Author(s)
      吉久健朗, 横山央明, 金子岳史
    • Organizer
      日本天文学会2024年春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Synthetic Stokes Pro?les of Ca II 8542?A for Shock Waves in Simulated Solar Chromosphere2024

    • Author(s)
      ZHOU,Xinyu; YOKOYAMA,Takaaki; IIJIMA, Haruhisa et al.
    • Organizer
      日本天文学会2024年春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 太陽黒点の半暗部とエバーシェッド流について I. シミュレーション設定と結果2024

    • Author(s)
      堀田英之
    • Organizer
      日本天文学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 黄道面脱出ミッション進捗報告2024

    • Author(s)
      堀田英之、鳥海森、今田晋亮、八田良樹、高尾勇輝 、田畑邦佳,西山和孝,月崎竜童
    • Organizer
      太陽研連シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] オープンフラックス問題の解決策: 明るいコロナホールの可能性2024

    • Author(s)
      飯島陽久
    • Organizer
      日本天文学会2024年春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Can the solar p-modes contribute to the high-frequency transverse oscillations of spicules?2023

    • Author(s)
      Hidetaka Kuniyoshi, Munehito Shoda, Richard Morton, Takaaki Yokoyama
    • Organizer
      Hinode-16/IRIS-13
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] EUV synthesis toward the measurement of transition-region temperature distribution with SOLAR-C2023

    • Author(s)
      T. Oba, A. Tei, T. Yokoyama et al.
    • Organizer
      Hinode-16/IRIS-13
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sub-Grid Scale Model with Small-Scale Dynamo2023

    • Author(s)
      Ryota Shimada, Takaaki Yokoyama
    • Organizer
      Hinode-16/IRIS-13
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study of prominence formation considering shock and turbulent heating2023

    • Author(s)
      Takero Yoshihisa, Takaaki Yokoyama, Takafumi Kaneko
    • Organizer
      Hinode-16/IRIS-13
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic Tornado Properties: A Substantial Contribution to the Solar Coronal Heating via Efficient Energy Transfer2023

    • Author(s)
      Kuniyoshi, M. Shoda, H. Iijima, & T. Yokoyama
    • Organizer
      WISA conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic Tornado Properties: A Substan- tial Contribution to the Solar Coronal Heating via Efficient Energy Transfer2023

    • Author(s)
      H. Kuniyoshi, M. Shoda, H. Iijima, & T. Yokoyama
    • Organizer
      AGU fall meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] One-dimentional MHD simulation on the prominence formation considering the shock and the Alfven wave turbulence heating2023

    • Author(s)
      Takero Yoshihisa, Takaaki Yokoyama、Takafumi Kaneko
    • Organizer
      Wave and Instability in the Solar Atmosphere (WISA)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-resolution simulations of solar convection zone2023

    • Author(s)
      Hideyuki Hotta
    • Organizer
      ChaICA V
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Numerical simulation of turbulence and magnetic field in the Sun2023

    • Author(s)
      Hideyuki Hotta
    • Organizer
      CCP2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Flux emergence simulation from the base of the convection zone to the photosphere2023

    • Author(s)
      Hideyuki Hotta
    • Organizer
      Flux emergence workshop
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Toward advanced physics-based prediction of solar flares2023

    • Author(s)
      Kanya Kusano
    • Organizer
      6th GST Workshop
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Space Weather Prediction for Sustainable Space Development2023

    • Author(s)
      Kanya Kusano
    • Organizer
      The 34th International Symposium on Space Technology and Science
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] What triggers the onset of solar flares?2023

    • Author(s)
      Kanya Kusano
    • Organizer
      MR2023 Workshop
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Radiative MHD simulation of solar wind formation2023

    • Author(s)
      H. Iijima, T. Matsumoto, H. Hotta, and S. Imada
    • Organizer
      Hinode-16 / IRIS-13 meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comprehensive simulation of solar wind formation from the solar interior2023

    • Author(s)
      H. Iijima, T. Matsumoto, H. Hotta, and S. Imada
    • Organizer
      Japan Geoscience Union Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impact of Convective Flows on Energy Build-up of Flare-productive Sunspots2023

    • Author(s)
      T. Kaneko, H. Hotta, S. Toriumi, K. Kusano
    • Organizer
      15th International Conference on Numerical Modeling of Space Plasma Flows (ASTRONUM 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Impact of subsurface convective flows on the formation of sunspot magnetic field and energy build-up2023

    • Author(s)
      T. Kaneko, H. Hotta, S. Toriumi, K. Kusano
    • Organizer
      Hinode-16/IRIS-13
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 宇宙磁気流体としての太陽研究の現状と今後の展望2023

    • Author(s)
      横山央明
    • Organizer
      MHD2023 宇宙プラズマの活動性~天体形成から高エネルギー現象まで~
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 恒星磁気活動と惑星環境をつなぐ汎恒星惑星進化学をめざして2023

    • Author(s)
      横山央明、堀田英之ほか
    • Organizer
      日本天文学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 音波固有振動p モードにより生じるアルフベン波は太陽・恒星コロナ加熱に寄与するのか?2023

    • Author(s)
      国吉秀鷹、庄田宗人、Richard Morton、横山央明
    • Organizer
      日本天文学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 1.5 次元MHD シミュレーションによるプロミネンス形成過程の背景加熱率依存性に関する調査2023

    • Author(s)
      吉久健朗, 横山央明, 金子岳史
    • Organizer
      日本天文学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 極端紫外スペクトル線の仮想分光観測を用いた遷移層温度分布に関する研究2023

    • Author(s)
      大場崇義, 鄭 祥子, 横山央明ほか
    • Organizer
      日本天文学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 恒星物理学の大問題とその解決に向けた取り組みについて2023

    • Author(s)
      堀田英之
    • Organizer
      Stellar Magnetic Activity WS
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 大規模シミュレーションによる太陽地球環境変動予測2023

    • Author(s)
      堀田英之
    • Organizer
      太陽地球環境予測のためのモデル研究の展望
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 太陽地球環境研究へのHPCの挑戦2023

    • Author(s)
      堀田英之
    • Organizer
      SGEPSS
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 恒星物理学の諸問題の現状と展望2023

    • Author(s)
      堀田英之
    • Organizer
      日本天文学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] SOLAR-Cと数値計算の連携で明らかにしたい太陽の謎2023

    • Author(s)
      飯島陽久
    • Organizer
      2023年度太陽研連シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 磁気リコネクションがエネルギー輸送過程へ与える寄与の定量化手法2023

    • Author(s)
      飯島陽久, 松本琢磨, 堀田英之, 今田晋亮
    • Organizer
      日本天文学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 太陽大気の輻射磁気流体シミュレーション2023

    • Author(s)
      飯島陽久
    • Organizer
      MHD2023 宇宙プラズマの活動性~天体形成から高エネルギー現象まで~
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 太陽コロナにおける放射凝縮現象の初期段階についての 1.5 次元 MHD シミュレーション2023

    • Author(s)
      吉久健朗、横山央明
    • Organizer
      日本天文学会2023年春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Solar p-mode as an additional energy source for coronal heating2023

    • Author(s)
      Hidetaka Kuniyoshi, Richard Morton, Takaaki Yokoyama
    • Organizer
      日本天文学会2023年春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 対流層の底から光球までの浮上磁場シミュレーション:黒点対の非対称性生成の要因について2023

    • Author(s)
      堀田英之、鳥海森、草野完也
    • Organizer
      日本天文学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] スピキュールについて2023

    • Author(s)
      飯島陽久
    • Organizer
      2022年度太陽研連シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 熱対流と磁場が駆動する太陽大気の形成過程2023

    • Author(s)
      飯島陽久
    • Organizer
      CfCA User’s Meeting
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] MHD simulations of the chromospheric and coronal activities2022

    • Author(s)
      Takaaki Yokoyama
    • Organizer
      Plasma Explosions in the Universe
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Maintenance of Large Scale Magnetic Fields2022

    • Author(s)
      Ryota Shimada, Hideyuki Hotta, Takaaki Yokoyama
    • Organizer
      Cool Stars 21
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MBP merger, an alternative solar/stellar coronal heating mechanism2022

    • Author(s)
      H. Kuniyoshi, H. Iijima, & T. Yokoyama
    • Organizer
      SOLAR MHD conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MBP merger, an alternative solar/stellar coronal heating mechanism2022

    • Author(s)
      H. Kuniyoshi, H. Iijima, & T. Yokoyama
    • Organizer
      IAU general assembly
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Current and next-generation simulations in solar physics2022

    • Author(s)
      Hideyuki Hotta
    • Organizer
      The 5th ISEE Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Solar interior dynamics: Convection and Magnetic field2022

    • Author(s)
      Hideyuki Hotta
    • Organizer
      APPC15
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Solar differential rotation reproduced with high resolution magnetohyd rodynamic simulations2022

    • Author(s)
      Hideyuki Hotta
    • Organizer
      ICNSP2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Generation of the solar magnetic field2022

    • Author(s)
      Hideyuki Hotta
    • Organizer
      IAU GA 372: The Era of Multi-Messenger Solar Physics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Future prospects2022

    • Author(s)
      Hideyuki Hotta
    • Organizer
      ISSI workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Integrated simulation study on the formation of flare-productive regions and the onset of solar flares2022

    • Author(s)
      Kanya Kusano, Shin Toriumi, Hideyuki Hotta, and Takafumi Kaneko
    • Organizer
      COSPAR 2022, 44th Scientific Assembly
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A few topics of plasma physics in solar physics: Eruption, Reconnection, and Dynamo2022

    • Author(s)
      Kanya Kusno
    • Organizer
      The 31st International Toki Conference (ITC31)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Radiative MHD simulation of the solar corona with RAMENS2022

    • Author(s)
      H. Iijima
    • Organizer
      Advances in Solar MHD Numerical Simulations in the Era of High-Resolution Observations
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 汎恒星惑星系進化学の創造:恒星磁気活動と惑星環境をつなぐ2022

    • Author(s)
      横山央明ほか
    • Organizer
      太陽研連シンポジウム2022
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 磁気トルネードによるコロナへの突発的エネルギー輸送2022

    • Author(s)
      国吉秀鷹、横山央明、飯島陽久
    • Organizer
      日本天文学会2022年秋季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 対流層全球計算内で働く α効果の抑制2022

    • Author(s)
      嶌田遼太、堀田英之、横山央明
    • Organizer
      日本天文学会2022年秋季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Comparison on Ca II 8542?A synthetic Stokes pro?le between magnetic reconnection and shock wave in simulated Solar chromosphere2022

    • Author(s)
      ZHOU,Xinyu; YOKOYAMA,Takaaki; IIJIMA, Haruhisa et al.
    • Organizer
      日本天文学会2022年秋季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 大規模シミュレーションで解明した「反太陽型の差動回転は存在しない」可能性2022

    • Author(s)
      堀田英之、八田良樹、草野完也
    • Organizer
      日本天文学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 超高解像度計算による太陽の表面勾配層、表面極向き子午面流、赤道加速の再現2022

    • Author(s)
      堀田英之、草野完也、関井隆
    • Organizer
      日本地球惑星科学連合大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 太陽面爆発現象の包括的な理解と予測2022

    • Author(s)
      草野完也
    • Organizer
      第35回 理論懇シンポジウム「理論天文学・宇宙物理学の広がり:さらなる発展に向けて」
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 低速太陽風の3次元輻射磁気流体計算2022

    • Author(s)
      飯島陽久
    • Organizer
      第9回「富岳」を中核とするHPCIシステム利用研究課題成果報告会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 輻射磁気流体シミュレーション研究の将来2022

    • Author(s)
      飯島陽久
    • Organizer
      太陽研連2022年度将来計画シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 赤道加速・表面勾配層・極向き子午面還流を再現した大規模数値シミュレーション2022

    • Author(s)
      堀田英之, 草野完也
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 対流層からコロナ・太陽風までの包括的3次元輻射磁気流体シミュレーション2022

    • Author(s)
      飯島陽久, 松本琢磨, 堀田英之, 今田晋亮
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Ca II 8542A synthetic Stokes profile on chromospheric reconnection events in 2D RMHD simulation of solar active region2022

    • Author(s)
      ZHOU, Xinyu; YOKOYAMA,Takaaki; IIJIMA, Haruhisa; TORIUMI, Shin; MATSUMOTO, Takuma; KATSUKAWA, Yukio; KUBO, Masahito
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高磁気レイノルズ数での大規模磁場誘導と極性反転に関する解析2022

    • Author(s)
      嶌田遼太, 堀田英之, 横山央明
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 活動領域12887で発生したXクラスフレアの観測データ駆動型磁気流体シミュレーション2022

    • Author(s)
      金子岳史, 草野完也
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Data-driven MHD Simulation of Long-term Temporal Evolution of AR 112832022

    • Author(s)
      Yeongmin Kang, Takafumi Kaneko, Kanya Kusano
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 赤道加速を達成した超高解像度計算の解析結果2021

    • Author(s)
      堀田英之, 嶌田遼太, 草野完也, 横山央明
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高磁気レイノルズ数での大規模磁場の成因に関する解析2021

    • Author(s)
      嶌田遼太, 堀田英之, 横山央明
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 太陽内部対流が黒点形成・進化へ与える影響2021

    • Author(s)
      金子岳史、草野完也、堀田英之、鳥海森
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 離散的にエネルギー方程式の整合性を保つ頑健な磁気流体解法の提案2021

    • Author(s)
      飯島陽久
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 太陽フレアの経験予測と物理予測の比較2021

    • Author(s)
      近藤芳穂, 草野完也
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Data-driven MHD Simulation of Solar Active Region NOAA 112832021

    • Author(s)
      Yeongmin Kang, Takafumi Kaneko, Kanya Kusano
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 数値的に解像できない遷移層への対処法と分光観測量への影響2021

    • Author(s)
      飯島陽久, 今田晋亮
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Solar-C (EUVST) に向けたEUV スペクトル線仮想分光観測2021

    • Author(s)
      鄭祥子, 横山央明, 鳥海森, 原弘久, 今田晋亮, 大場崇義
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 粒状斑間隙からのエネルギー発生を考慮したコロナループの輻射流体シミュレーション2021

    • Author(s)
      国吉秀鷹, 横山央明, 飯島陽久
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] A numerical treatment for the unresolved transition region in the solar atmosphere2021

    • Author(s)
      Haruhisa Iijima
    • Organizer
      Japan Geoscience Union Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical simulation of solar convection zone and magnetic field2021

    • Author(s)
      Hideyuki Hotta
    • Organizer
      The 30th International Toki Conference, Plenary talk
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High resolution simulation of solar convection zone in Fugaku2021

    • Author(s)
      Hideyuki Hotta
    • Organizer
      AAPPS-DPP2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Correct reproduction of solar differential rotation in high-resolution simulation with Fugaku2021

    • Author(s)
      Hideyuki Hotta, Kanya Kusano
    • Organizer
      JpGU
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] 宇宙電磁流体力学の基礎2023

    • Author(s)
      柴田一成、横山央明、工藤哲洋
    • Total Pages
      400
    • Publisher
      日本評論社
    • ISBN
      4535603413
    • Related Report
      2022 Annual Research Report
  • [Book] Solar-Terrestrial Environmental Prediction2023

    • Author(s)
      K. Kusano et al.
    • Total Pages
      800
    • Publisher
      Springer
    • ISBN
      981197764X
    • Related Report
      2022 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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