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Evolution theory and survey observation of double white dwarf merger remnants

Research Project

Project/Area Number 20K04010
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 16010:Astronomy-related
Research InstitutionTohoku University (2021-2022)
The University of Tokyo (2020)

Principal Investigator

Kashiyama Kazumi  東北大学, 理学研究科, 准教授 (10785744)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords白色矮星 / M型星 / 時間領域天文学 / 晩期型星 / 連星白色矮星 / 可視光測光探査
Outline of Research at the Start

連星白色矮星の合体残骸は、銀河系外の突発現象、また、銀河系内の特異なコンパクト星の起源候補として、天文学・宇宙物理学の様々な文脈で重要な天体である。しかし、合体後約1万年以内、熱核進化タイムスケールの合体残骸については理論、 観測の両面で謎が多く、ミッシングリンクとなっている。本研究では、2019年4月に発見が報告された合体残骸の候補、J 005311を足がかりに、磁気回転駆動風の効果を取り入れた合 体残骸の進化計算とTomo-e Gozenカメラを用いた白色矮星のsub-minute変動探査観測の二本柱で、合体後約1万年以内の連星白色矮星合体残骸の進化とその多様性を詳らかにする。

Outline of Final Research Achievements

Using the Tomo-e Gozen camera on the Kiso Schmidt telescope, we have carried out a search for second-scale variability events from stars, including white dwarfs, and constructed a pipeline to obtain and analyse photometric light curves of stars from the video data. In particular, 22 high-luminosity second-scale flares from M-type stars, which have been difficult to detect with previous surveys, were successfully detected(Aizawa et al. 2022).
We have successfully constructed a theoretical template of photometric light curves for merged white dwarfs as part of our theoretical study on the remnants of binary white dwarf mergers. This template was then applied to ZTF J1901, resulting in a new constraint on the structure of the internal magnetic field and the magnetosphere (Suto et al., 2023).

Academic Significance and Societal Importance of the Research Achievements

我々が新たに発見したM型星の高輝度秒スケールフレアはその輝度や発生頻度からM型星周りの地球型惑星のハビタビリティーに大きな影響を与える可能性があり、天文学にとどまらず惑星科学や宇宙生物学にとってもインパクトのある成果であると考える。
また、連星白色矮星合体についての我々の一連の研究により、WD J005311が平安末期に発生し、吾妻鏡などの歴史書に記載されている超新星SN1181の残骸天体である可能性が高まっている。SN1181歴史書に記載されている銀河系内超新星のうち、唯一正体が明らかになっていなかった超新星であり、自然科学の枠を超え、人文科学にも波及する成果であるといえる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (34 results)

All 2022 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (17 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 17 results,  Open Access: 9 results) Presentation (12 results) (of which Int'l Joint Research: 7 results,  Invited: 8 results) Book (2 results)

  • [Int'l Joint Research] Pennsylvania state university(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Stockholm university(スウェーデン)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Pennsylvania state university/Harvard University(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Modeling photometric variations due to a global inhomogeneity on an obliquely rotating star: Application to light curves of white dwarfs2022

    • Author(s)
      Suto Yasushi、Sasaki Shin、Aizawa Masataka、Fujisawa Kotaro、Kashiyama Kazumi
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 75 Issue: 1 Pages: 103-119

    • DOI

      10.1093/pasj/psac093

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fast optical flares from M?dwarfs detected by a one-second-cadence survey with Tomo-e Gozen2022

    • Author(s)
      Aizawa Masataka、Kawana Kojiro、Kashiyama Kazumi (+Kotaro Fujisawa) et al.
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 74 Issue: 5 Pages: 1069-1094

    • DOI

      10.1093/pasj/psac056

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] X-Raying the Birth of Binary Neutron Stars and Neutron Star?Black Hole Binaries2022

    • Author(s)
      Kashiyama Kazumi、Sawada Ryo、Suwa Yudai
    • Journal Title

      The Astrophysical Journal

      Volume: 935 Issue: 2 Pages: 86-86

    • DOI

      10.3847/1538-4357/ac7ff7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Variable thermal energy injection from magnetar spin-down as a possible cause of stripped-envelope supernova light-curve bumps2022

    • Author(s)
      Moriya Takashi J、Murase Kohta、Kashiyama Kazumi、Blinnikov Sergei I
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 513 Issue: 4 Pages: 6210-6218

    • DOI

      10.1093/mnras/stac1352

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multi-wavelength constraints on the outflow properties of the extremely bright millisecond radio bursts from the galactic magnetar SGR 1935?+?21542022

    • Author(s)
      Yamasaki Shotaro、Kashiyama Kazumi、Murase Kohta
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 511 Issue: 3 Pages: 3138-3149

    • DOI

      10.1093/mnras/stac234

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On the Energy Source of Ultrastripped Supernovae2022

    • Author(s)
      Sawada Ryo、Kashiyama Kazumi、Suwa Yudai
    • Journal Title

      The Astrophysical Journal

      Volume: 927 Issue: 2 Pages: 223-223

    • DOI

      10.3847/1538-4357/ac53ae

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] AT 2018lqh: Black Hole Born from a Rotating Star?2021

    • Author(s)
      Tsuna Daichi、Kashiyama Kazumi、Shigeyama Toshikazu
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 922 Issue: 2 Pages: L34-L34

    • DOI

      10.3847/2041-8213/ac3997

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] ALMA and NOEMA constraints on synchrotron nebular emission from embryonic superluminous supernova remnants and radio?gamma-ray connection2021

    • Author(s)
      Murase Kohta、Omand Conor M B、Coppejans Deanne L、Nagai Hiroshi、Bower Geoffrey C、Chornock Ryan、Fox Derek B、Kashiyama Kazumi、Law Casey、Margutti Raffaella、M?sz?ros Peter
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 508 Issue: 1 Pages: 44-51

    • DOI

      10.1093/mnras/stab2506

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Multiwavelength Emission from Magnetically Arrested Disks around Isolated Black Holes2021

    • Author(s)
      Kimura Shigeo S.、Kashiyama Kazumi、Hotokezaka Kenta
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 922 Issue: 1 Pages: L15-L15

    • DOI

      10.3847/2041-8213/ac35dc

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gravitational Wave Backgrounds from Coalescing Black Hole Binaries at Cosmic Dawn: An Upper Bound2021

    • Author(s)
      Inayoshi Kohei、Kashiyama Kazumi、Visbal Eli、Haiman Zolt?n
    • Journal Title

      The Astrophysical Journal

      Volume: 919 Issue: 1 Pages: 41-41

    • DOI

      10.3847/1538-4357/ac106d

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Necessary Condition for Supernova Fallback Invading Newborn Neutron-star Magnetosphere2021

    • Author(s)
      Zhong Yici、Kashiyama Kazumi、Shigeyama Toshikazu、Takasao Shinsuke
    • Journal Title

      The Astrophysical Journal

      Volume: 917 Issue: 2 Pages: 71-71

    • DOI

      10.3847/1538-4357/ac0a74

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Magnetically Arrested Disks in Quiescent Black Hole Binaries: Formation Scenario, Observable Signatures, and Potential PeVatrons2021

    • Author(s)
      Kimura Shigeo S.、Sudoh Takahiro、Kashiyama Kazumi、Kawanaka Norita
    • Journal Title

      The Astrophysical Journal

      Volume: 915 Issue: 1 Pages: 31-31

    • DOI

      10.3847/1538-4357/abff58

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Multiwavelength View of the Type IIn Zoo: Optical to X-Ray Emission Model of Interaction-powered Supernovae2021

    • Author(s)
      Tsuna Daichi、Kashiyama Kazumi、Shigeyama Toshikazu
    • Journal Title

      The Astrophysical Journal

      Volume: 914 Issue: 1 Pages: 64-64

    • DOI

      10.3847/1538-4357/abfaf8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Late-time Radio and Millimeter Observations of Superluminous Supernovae and Long Gamma-Ray Bursts: Implications for Central Engines, Fast Radio Bursts, and Obscured Star Formation2021

    • Author(s)
      Eftekhari T.、Margalit B.、Omand C. M. B.、Berger E.、Blanchard P. K.、Demorest P.、Metzger B. D.、Murase K.、Nicholl M.、Villar V. A.、Williams P. K. G.、Alexander K. D.、Chatterjee S.、Coppejans D. L.、Cordes J. M.、Gomez S.、Hosseinzadeh G.、Hsu B.、Kashiyama K.、Margutti R.、Yin Y.
    • Journal Title

      The Astrophysical Journal

      Volume: 912 Issue: 1 Pages: 21-21

    • DOI

      10.3847/1538-4357/abe9b8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Intermediate Luminosity Red Transients by Black Holes Born from Erupting Massive Stars2020

    • Author(s)
      Tsuna Daichi、Ishii Ayako、Kuriyama Naoto、Kashiyama Kazumi、Shigeyama Toshikazu
    • Journal Title

      The Astrophysical Journal

      Volume: 897 Issue: 2 Pages: L44-L44

    • DOI

      10.3847/2041-8213/aba0ac

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Astrometric study of Gaia DR2 stars for interstellar communication2020

    • Author(s)
      Seto Naoki、Kashiyama Kazumi
    • Journal Title

      International Journal of Astrobiology

      Volume: 19 Issue: 4 Pages: 308-313

    • DOI

      10.1017/s147355042000004x

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Overview of KAGRA : KAGRA science2020

    • Author(s)
      A. Akutsu, H. Shinkai, KAGRA collaboration
    • Journal Title

      Progress of Theoretical Experimental Physics

      Volume: ptaa120 Issue: 5 Pages: 1-68

    • DOI

      10.1093/ptep/ptaa120

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] X-Raying the Birth of Binary Neutron Stars and Neutron Star-Black Hole Binaries2022

    • Author(s)
      樫山和己
    • Organizer
      2023年春季天文学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Double degenerate merger remnants and related astrophysical phenomena2022

    • Author(s)
      樫山和己
    • Organizer
      Exploring the Transient Universe
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Accretion and merger induced collapse of white dwarfs as possible progenitor of fast radio burst sources2022

    • Author(s)
      樫山和己
    • Organizer
      Fast Radio Bursts Symposium 2023 in Taiwan
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Outflows from Dwarfs2021

    • Author(s)
      Kazumi Kashiyama
    • Organizer
      YITP workshop Extreme Outflows in Astrophysical Transients
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Magnetic fields of compact objects2021

    • Author(s)
      Kazumi Kashiyama
    • Organizer
      NAOJ Future Planning Symposium 2021 -Thinking about Future Plans Across Wavelengths
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] How much SNR fallback can invade newborn pulsar wind and magnetosphere?2021

    • Author(s)
      Yici Zhong, 樫山和己, 茂山俊和, 高棹真介
    • Organizer
      日本天文学会2021年春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Synchrotron Boilers in Embryonic Neutron-Star Wind Nebulae2021

    • Author(s)
      樫山和己, Conor Omand, 村瀬孔大, 浅野勝晃
    • Organizer
      日本天文学会2021年春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Magnetically Arrested Diskの発現条件に関する理論研究2021

    • Author(s)
      高棹真介, 樫山和己
    • Organizer
      日本天文学会2021年春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] X-raying the missing links in compact object astrophysics2021

    • Author(s)
      樫山和己
    • Organizer
      多波長・時間軸天文学の時代のFORCE ~広帯域X線で迫るコンパクト天体の世界~
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Can repeating fast radio bursts still be rotation powered?2021

    • Author(s)
      Kazumi Kashiyama
    • Organizer
      YITP International Molecule-type Workshop : Fast Radio Bursts: A Mystery Being Solved?
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Fast Radio Bursts and their possible counterparts2020

    • Author(s)
      Kazumi Kashiyama
    • Organizer
      Probing the Extragalactic Universe with High Energy and Very High Energy Sources
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Fast Radio Bursts: A Mystery Being Solved?2020

    • Author(s)
      Kazumi Kashiyama
    • Organizer
      Connecting high-energy astroparticle physics for origins of cosmic rays and future perspectives
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] 物理科学,この1年 20222022

    • Author(s)
      パリティ編集委員会、大槻 義彦
    • Total Pages
      204
    • Publisher
      丸善出版
    • ISBN
      9784621306864
    • Related Report
      2021 Research-status Report
  • [Book] 突発天体とコンパクト天体形成の最前線へ2020

    • Author(s)
      樫山和己
    • Total Pages
      12
    • Publisher
      天文月報 (Astronomical Herald)
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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