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High-resolution simulation study for type Ia supernova progenitors

Research Project

Project/Area Number 16K17656
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Astronomy
Research InstitutionThe University of Tokyo

Principal Investigator

Tanikawa Ataru  東京大学, 大学院総合文化研究科, 助教 (20550742)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsIa型超新星 / 白色矮星 / 中間質量ブラックホール / 大規模並列流体シミュレーション / 大規模流体シミュレーション / 中性子星 / Ia型超新星爆発 / 理論天文学
Outline of Final Research Achievements

We investigated various thermonuclear explosions of white dwarf stars in order to make clear the progenitors of type Ia supernovae. First, we have focused on a white dwarf in a double white dwarf system. We examined a promising model, so-called Dynamically-Driven Double-Degenerate Double-Detonation. We found that this model is roughly consistent with observations of type Ia supernovae. However, this model contains low-velocity oxygen and bulk velocity shift, which is inconsistent with type Ia supernovae. Future observations should search for these signals in type Ia supernovae. Second, we investigated tidally disrupted white dwarf stars. We confirmed such white dwarfs can explode similarly to type Ia supernovae. Moreover, we showed white dwarf stars explode more easily if they have outer helium shells.

Academic Significance and Societal Importance of the Research Achievements

Ia型超新星は宇宙で最も明るくかつ頻繁に起きる爆発現象の1つである。その正体については、古くから人々の関心の対象である。しかし、その正体はわかっていない。本研究では近年有力候補であるDynamically-Driven Double-Degenerate Double-Detonation(D6)モデルについて調べた。その結果、D6モデルは大雑把にIa型超新星の特徴と一致するが、細かな特徴が異なることが明らかになった。例えばIa型超新星は速度シフトや低速度の酸素を持たないが、D6モデルは持つということである。これらの結果は我々にとって身近である鉄元素の起源を解明するのに役立つと期待している。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (30 results)

All 2019 2018 2017 2016

All Journal Article (10 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 10 results,  Open Access: 3 results) Presentation (20 results) (of which Int'l Joint Research: 11 results,  Invited: 3 results)

  • [Journal Article] Property of young massive clusters in a galaxygalaxy merger remnant2019

    • Author(s)
      Matsui Hidenori , Tanikawa Ataru , Saitoh Takayuki R
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 71 Issue: 1 Pages: 19-19

    • DOI

      10.1093/pasj/psy139

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-resolution Hydrodynamic Simulation of Tidal Detonation of a Helium White Dwarf by an Intermediate Mass Black Hole2018

    • Author(s)
      Tanikawa Ataru
    • Journal Title

      The Astrophysical Journal

      Volume: 858 Issue: 1 Pages: 26-26

    • DOI

      10.3847/1538-4357/aaba79

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tidal Disruption of a White Dwarf by a Black Hole: The Diversity of Nucleosynthesis, Explosion Energy, and the Fate of Debris Streams2018

    • Author(s)
      Kawana Kojiro , Tanikawa Ataru , Yoshida Naoki
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: - Issue: 3 Pages: 842-842

    • DOI

      10.1093/mnras/sty842

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fortran interface layer of the framework for developing particle simulator FDPS2018

    • Author(s)
      Namekata Daisuke , Iwasawa Masaki , Nitadori Keigo , Tanikawa Ataru , Muranushi Takayuki , Wang Long , Hosono Natsuki , Nomura Kentaro , Makino Junichiro
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 70 Issue: 4 Pages: 70-70

    • DOI

      10.1093/pasj/psy062

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Metal pollution of low-mass Population III stars through accretion of interstellar objects like ‘Oumuamua2018

    • Author(s)
      Tanikawa Ataru , Suzuki Takeru K , Doi Yasuo
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 70 Issue: 4 Pages: 80-80

    • DOI

      10.1093/pasj/psy075

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional Simulation of Double Detonations in the Double-degenerate Model for Type Ia Supernovae and Interaction of Ejecta with a Surviving White Dwarf Companion2018

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

      The Astrophysical Journal

      Volume: 868 Issue: 2 Pages: 90-90

    • DOI

      10.3847/1538-4357/aae9ee

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tidal double detonation: a new mechanism for the thermonuclear explosion of a white dwarf induced by a tidal disruption event2018

    • Author(s)
      Tanikawa Ataru
    • Journal Title

      Monthly Notices of the Royal Astronomical Society: Letters

      Volume: 475 Issue: 1 Pages: 67-71

    • DOI

      10.1093/mnrasl/sly006

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Does Explosive Nuclear Burning Occur in Tidal Disruption Events of White Dwarfs by Intermediate-mass Black Holes?2017

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

      The Astrophysical Journal

      Volume: 839 Issue: 2 Pages: 81-81

    • DOI

      10.3847/1538-4357/aa697d

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Unconvergence of very-large-scale giant impact simulations2017

    • Author(s)
      Hosono Natsuki、Iwasawa Masaki、Tanikawa Ataru、Nitadori Keigo、Muranushi Takayuki、Makino Junichiro
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 69 Issue: 2 Pages: 26-36

    • DOI

      10.1093/pasj/psw131

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] The detection rates of merging binary black holes originating from star clusters and their mass function2017

    • Author(s)
      Fujii Michiko S.、Tanikawa Ataru、Makino Junichiro
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 69 Issue: 6 Pages: 94-108

    • DOI

      10.1093/pasj/psx108

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Three-dimensional simulations of double detonations in double-degenerate systems for type Ia supernovae2019

    • Author(s)
      Ataru Tanikawa
    • Organizer
      10th DTA symposium "Stellar deaths and their diversity"
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 連星白色矮星 でのダブルデトネーションの3次元流体計算とIa型超新星2019

    • Author(s)
      谷川衝
    • Organizer
      日本天文学会2019年春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Numerical Study of Thermonuclear Explosion of White Dwarfs Induced by Tidal Disruption Events2018

    • Author(s)
      Ataru Tanikawa
    • Organizer
      15th Marcel Grossmann Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tidal disruption events of white dwarfs: a clue to search for intermediate mass black holes2018

    • Author(s)
      Ataru Tanikawa
    • Organizer
      21st European White Dwarf Workshop
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Metal Pollution of Low-Mass Population III Stars through Collision of Interstellar Objects2018

    • Author(s)
      Ataru Tanikawa
    • Organizer
      The 11th meeting on Cosmic Dust
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical Study of White Dwarf Thermonuclear Explosions induced by Tidal Disruption Events2018

    • Author(s)
      Ataru Tanikawa
    • Organizer
      The 8th East Asian Numerical Astrophysics Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Large-scale parameter search of stellar merger simulations for refinement of intermediate mass black holes formation model2018

    • Author(s)
      Toshinori Yamauchi
    • Organizer
      The 8th East Asian Numerical Astrophysics Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Metal pollution of low-mass Population III stars through accretion of interstellar objects2018

    • Author(s)
      Ataru Tanikawa
    • Organizer
      Stellar Archaeology as a Time Machine to the First stars
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 中間質量ブラックホールによる白色矮星の潮汐破壊と熱核爆発2018

    • Author(s)
      谷川衝
    • Organizer
      高エネルギー宇宙物理学研究会2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] `Oumuamuaを始 めとする恒星間天体との衝突による初代星の金属汚染2018

    • Author(s)
      谷川衝
    • Organizer
      日本天文学会2018年秋季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 中間質量ブラックホール形成モデルの精緻化に向けた恒星合体計算2018

    • Author(s)
      山内俊典
    • Organizer
      日本天文学会2018年秋季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 恒星間天体による初代星の金属汚染に関する研究2018

    • Author(s)
      谷川衝
    • Organizer
      初代星・初代銀河研究会2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] Tidal detonation of a WD by IMBH2018

    • Author(s)
      Ataru Tanikawa
    • Organizer
      Using Tidal Disruption Events to Study Super-Massive Black Holes
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 白色矮星と中性子星の合体に関する数値的研究2017

    • Author(s)
      谷川衝
    • Organizer
      研究会「連星中性子星・ブラックホールを含む重力波源の電磁波対応天体」
    • Place of Presentation
      京都大学(京都府京都市)
    • Year and Date
      2017-03-06
    • Related Report
      2016 Research-status Report
  • [Presentation] White dwarf merger by SPH simulation2017

    • Author(s)
      Ataru Tanikawa
    • Organizer
      Stellar Evolution, Supernova and Nucleosynthesis Across Cosmic Time
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Does Explosive Nuclear Burning occur in Tidal Disruption Events of White Dwarfs by Intermediate-mass Black Holes?2017

    • Author(s)
      Ataru Tanikawa
    • Organizer
      East-Asia AGN Workshop
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 中間質量ブラックホールによる白色矮星の潮汐破壊に関する数値研究2017

    • Author(s)
      谷川衝
    • Organizer
      ミッシンクブラックホー ル ワークショップ
    • Related Report
      2017 Research-status Report
  • [Presentation] 中間質量ブラックホールによる白色矮星の潮汐破壊中に伴う熱核爆 発に関する研究2017

    • Author(s)
      谷川衝
    • Organizer
      「超巨大ブラッ クホール研究推進連絡会」 第5回ワークショップ
    • Related Report
      2017 Research-status Report
  • [Presentation] 星団の形成と力学進化および星団内での連星形成に関する研究2016

    • Author(s)
      谷川衝
    • Organizer
      第29回理論懇シンポジウム「重力が織りなす宇宙の諸階層」
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Year and Date
      2016-12-20
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Numerical studies of tidal disruptions of white dwarfs2016

    • Author(s)
      Ataru Tanikawa
    • Organizer
      The 7th East Asian Numerical Astrophysics Meeting
    • Place of Presentation
      Beijing (China)
    • Year and Date
      2016-10-24
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2016-04-21   Modified: 2020-03-30  

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