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2019 Fiscal Year Annual Research Report

Extending the frontier of the transient science by multi-dimensional and multi-wavelength radiation transfer simulations

Publicly Offered Research

Project AreaGravitational wave physics and astronomy: Genesis
Project/Area Number 18H04585
Research InstitutionKyoto University

Principal Investigator

前田 啓一  京都大学, 理学研究科, 准教授 (00503880)

Project Period (FY) 2018-04-01 – 2020-03-31
Keywords輻射輸送 / 超新星 / 重力波天体
Outline of Annual Research Achievements

超新星爆発機構の全貌解明のためには、爆発モデルに基づいた輻射計算により予想される光度曲線・スペクトルを導き、これを様々な観測データにより検証することが必要である。本課題では、(1)超新星・爆発的天体現象に適用するための多次元・多波長輻射輸送コードの開発、(2)最新の超新星爆発モデルへの適用による、爆発理論の直接検証、を目的とする。本課題では、特に以下の天体をターゲットとした研究を進める。(a)標準的な「ニュートリノ駆動超新星」の現実的・多次元モデルに基づいた一般的な超新星の研究、(b)「連星中性子星の先駆超新星」モデルに基づいた、連星中性子星の形成過程の研究、(c)「超強磁場中性子星駆動超新星」の多次元モデルに基づいた、超高輝度超新星の研究。
2019年度には、標準的なニュートリノ駆動爆発シナリオに沿った最新の三次元爆発モデルに基づき、放射性元素崩壊に伴うガンマ線・エックス線放射計算の結果を二編の査読論文として発表した。超新星SN1987Aに対して提唱されている爆発モデルがこれら高エネルギー放射の観測事実を良く説明できることを示すとともに、親星モデルや金属量に制限をつけられることを示した。また、超強磁場中性子星駆動超新星の三次元モデル爆発モデルの流体計算結果を査読誌において発表した。以前に発表した二次元モデルの結果が正しいことを示したほか、予想される観測的帰結についてさらに詳細な議論を構築した。そのほか、多次元爆発モデルに基づいた多次元輻射輸送の応用として、白色矮星潮汐破壊現象の三次元可視光放射計算を行い、これを査読論文として発表した。ヘリウム白色矮星と炭素・酸素白色矮星では別種の突発天体として観測されることを示し、さらに現在その起源がわかっていない短いタイムスケールの突発現象の起源の候補になり得ることを示した。以上の成果を複数の国内外研究会で発表した。

Research Progress Status

令和元年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和元年度が最終年度であるため、記入しない。

  • Research Products

    (31 results)

All 2020 2019 Other

All Int'l Joint Research (5 results) Journal Article (14 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 14 results) Presentation (8 results) (of which Int'l Joint Research: 8 results,  Invited: 6 results) Remarks (4 results)

  • [Int'l Joint Research] California Institute of Technology/Space Telescope Science Institute/University of Minnesota(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      California Institute of Technology/Space Telescope Science Institute/University of Minnesota
    • # of Other Institutions
      2
  • [Int'l Joint Research] MPA/MPE(ドイツ)

    • Country Name
      GERMANY
    • Counterpart Institution
      MPA/MPE
  • [Int'l Joint Research] Stockholm University/KTH Royal Institute of Technology(スウェーデン)

    • Country Name
      SWEDEN
    • Counterpart Institution
      Stockholm University/KTH Royal Institute of Technology
  • [Int'l Joint Research] Monash University/Macquarie University(オーストラリア)

    • Country Name
      AUSTRALIA
    • Counterpart Institution
      Monash University/Macquarie University
  • [Int'l Joint Research] University of Amsterdam(オランダ)

    • Country Name
      NETHERLANDS
    • Counterpart Institution
      University of Amsterdam
  • [Journal Article] Properties of gamma-ray decay lines in 3D core-collapse supernova models, with application to SN 1987A and Cas A2020

    • Author(s)
      Jerkstrand A、Wongwathanarat A、Janka H-T、Gabler M、Alp D、Diehl R、Maeda K、Larsson J、Fransson C、Menon A、Heger A
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 494 Pages: 2471~2497

    • DOI

      https://doi.org/10.1093/mnras/staa736

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The HSC-SSP Transient Survey: Implications from Early Photometry and Rise Time of Normal Type Ia Supernovae2020

    • Author(s)
      Jiang Ji-an、Yasuda Naoki、Maeda Keiichi、Doi Mamoru、Shigeyama Toshikazu、Tominaga Nozomu、Tanaka Masaomi、Moriya Takashi J.、Takahashi Ichiro、Suzuki Nao、Morokuma Tomoki、Nomoto Ken’ichi
    • Journal Title

      The Astrophysical Journal

      Volume: 892 Pages: 25 (13 pages)

    • DOI

      https://doi.org/10.3847/1538-4357/ab76cb

    • Peer Reviewed
  • [Journal Article] Rapid Transients Originating from Thermonuclear Explosions in Helium White Dwarf Tidal Disruption Events2020

    • Author(s)
      Kawana Kojiro、Maeda Keiichi、Yoshida Naoki、Tanikawa Ataru
    • Journal Title

      The Astrophysical Journal

      Volume: 890 Pages: L26 (9 pages)

    • DOI

      https://doi.org/10.3847/2041-8213/ab7209

    • Peer Reviewed
  • [Journal Article] A type Ia supernova at the heart of superluminous transient SN 2006gy2020

    • Author(s)
      Jerkstrand Anders、Maeda Keiichi、Kawabata Koji S.
    • Journal Title

      Science

      Volume: 367 Pages: 415~418

    • DOI

      https://doi.org/10.1126/science.aaw1469

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Supernova 2014C: Ongoing Interaction with Extended Circumstellar Material with Silicate Dust2019

    • Author(s)
      Tinyanont Samaporn、Lau Ryan M.、Kasliwal Mansi M.、Maeda Keiichi、Smith Nathan、Fox Ori D.、Gehrz Robert D.、De Kishalay、Jencson Jacob、Bally John、Masci Frank
    • Journal Title

      The Astrophysical Journal

      Volume: 887 Pages: 75 (15 pages)

    • DOI

      https://doi.org/10.3847/1538-4357/ab521b

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Properties of the post-inspiral common envelope ejecta ? I. Dynamical and thermal evolution2019

    • Author(s)
      Iaconi Roberto、Maeda Keiichi、De Marco Orsola、Nozawa Takaya、Reichardt Thomas
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 489 Pages: 3334~3350

    • DOI

      https://doi.org/10.1093/mnras/stz2312

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nucleosynthesis Constraints on the Energy Growth Timescale of a Core-collapse Supernova Explosion2019

    • Author(s)
      Sawada Ryo、Maeda Keiichi
    • Journal Title

      The Astrophysical Journal

      Volume: 886 Pages: 47 (13 pages)

    • DOI

      https://doi.org/10.3847/1538-4357/ab4da3

    • Peer Reviewed
  • [Journal Article] Double-detonation Models for Type Ia Supernovae: Trigger of Detonation in Companion White Dwarfs and Signatures of Companions’ Stripped-off Materials2019

    • Author(s)
      Tanikawa Ataru、Nomoto Ken’ichi、Nakasato Naohito、Maeda Keiichi
    • Journal Title

      The Astrophysical Journal

      Volume: 885 Pages: 103 (19 pages)

    • DOI

      https://doi.org/10.3847/1538-4357/ab46b6

    • Peer Reviewed
  • [Journal Article] Possible Contribution of Magnetized White Dwarf Binaries to Type Ia Supernova Populations2019

    • Author(s)
      Ablimit Iminhaji、Maeda Keiichi
    • Journal Title

      The Astrophysical Journal

      Volume: 885 Pages: 99 (7 pages)

    • DOI

      https://doi.org/10.3847/1538-4357/ab4814

    • Peer Reviewed
  • [Journal Article] Radio Emission from Supernovae in the Very Early Phase: Implications for the Dynamical Mass Loss of Massive Stars2019

    • Author(s)
      Matsuoka Tomoki、Maeda Keiichi、Lee Shiu-Hang、Yasuda Haruo
    • Journal Title

      The Astrophysical Journal

      Volume: 885 Pages: 41 (11 pages)

    • DOI

      https://doi.org/10.3847/1538-4357/ab4421

    • Peer Reviewed
  • [Journal Article] X-Ray and Gamma-Ray Emission from Core-collapse Supernovae: Comparison of Three-dimensional Neutrino-driven Explosions with SN 1987A2019

    • Author(s)
      Alp Dennis、Larsson Josefin、Maeda Keiichi、Fransson Claes、Wongwathanarat Annop、Gabler Michael、Janka Hans-Thomas、Jerkstrand Anders、Heger Alexander、Menon Athira
    • Journal Title

      The Astrophysical Journal

      Volume: 882 Pages: 22 (19 pages)

    • DOI

      https://doi.org/10.3847/1538-4357/ab3395

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Constraining Massive Star Activities in the Final Years through Properties of Supernovae and Their Progenitors2019

    • Author(s)
      Ouchi Ryoma、Maeda Keiichi
    • Journal Title

      The Astrophysical Journal

      Volume: 877 Pages: 92 (13 pages)

    • DOI

      https://doi.org/10.3847/1538-4357/ab1a37

    • Peer Reviewed
  • [Journal Article] Three-dimensional Hydrodynamic Simulations of Supernova Ejecta with a Central Energy Source2019

    • Author(s)
      Suzuki Akihiro、Maeda Keiichi
    • Journal Title

      The Astrophysical Journal

      Volume: 880 Pages: 150 (14 pages)

    • DOI

      https://doi.org/10.3847/1538-4357/ab2ad3

    • Peer Reviewed
  • [Journal Article] SN 2017czd: A Rapidly Evolving Supernova from a Weak Explosion of a Type IIb Supernova Progenitor2019

    • Author(s)
      Nakaoka Tatsuya、Moriya Takashi J.、Tanaka Masaomi、Yamanaka Masayuki、Kawabata Koji S.、Maeda Keiichi、Kawabata Miho、Kawahara Naoki、Itagaki Koichi、Ouchi Ryoma、Blinnikov Sergei I.、Tominaga Nozomu、Uemura Makoto
    • Journal Title

      The Astrophysical Journal

      Volume: 875 Pages: 76 (11 pages)

    • DOI

      https://doi.org/10.3847/1538-4357/ab0dfe

    • Peer Reviewed
  • [Presentation] Observational Properties of Ultra Stripped Envelope Supernovae2020

    • Author(s)
      Keiichi Maeda
    • Organizer
      GW Genesis: Third Annual Area Symposium
    • Int'l Joint Research
  • [Presentation] spectral and polarization signals from stripped-envelope supernovae2019

    • Author(s)
      Keiichi Maeda
    • Organizer
      TDLI Workshop on The Radiating Universe in the Era of Multi-Messenger Astrophysics
    • Int'l Joint Research / Invited
  • [Presentation] Diversity of SNe Ia in the Rising Phase2019

    • Author(s)
      Keiichi Maeda
    • Organizer
      Progenitors of Type Ia Supernovae
    • Int'l Joint Research / Invited
  • [Presentation] Constraining the explosions and progenitors of type la supernovae2019

    • Author(s)
      Keiichi Maeda
    • Organizer
      ESO 2019 Workshop: The extragalactic explosive Universe: the new era of transient surveys and data-driven discovery
    • Int'l Joint Research / Invited
  • [Presentation] Properties of stripped envelope supernovae2019

    • Author(s)
      Keiichi Maeda
    • Organizer
      YITP long-term workshop Multi-Messenger Astrophysics in the Gravitational Wave Era
    • Int'l Joint Research
  • [Presentation] SN and Stellar Physics at Kyoto, and the Seimei Telescope2019

    • Author(s)
      Keiichi Maeda
    • Organizer
      Time-domain astronomy workshop 2019
    • Int'l Joint Research / Invited
  • [Presentation] SN 2017iuk associated with GRB171205A2019

    • Author(s)
      Keiichi Maeda
    • Organizer
      Collaborative Meeting on Supernova Remnants between Japan and USA
    • Int'l Joint Research / Invited
  • [Presentation] Optical/Radio View on Supernovae Surrounded by Dense Circumstellar Media: A Possible Counterpart of High Energy Transients2019

    • Author(s)
      Keiichi Maeda
    • Organizer
      The extreme Universe viewed in very-high-energy gamma rays 2019
    • Int'l Joint Research / Invited
  • [Remarks] 宇宙で最も明るい爆発現象の謎を解明

    • URL

      http://www.kyoto-u.ac.jp/ja/research/research_results/2019/200124_2.html

  • [Remarks] Origins of the 'Superluminous Supernovae'

    • URL

      https://www.kyoto-u.ac.jp/en/research/research_results/2019/200124_2.html

  • [Remarks] 宇宙で最も明るい爆発現象の謎が明らかに

    • URL

      https://www.hiroshima-u.ac.jp/news/55934

  • [Remarks] Progress in understanding the brightest...

    • URL

      https://www.mpa-garching.mpg.de/797272/news20200124

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Published: 2021-01-27  

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