Neutrino-dri v en massi v e stellar explosions in 3D fostered by magnetic fields via turbulent α-effect

Jin Matsumoto, Tomoya Takiwaki, Kei Kotake

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We investigate the influence of magnetic field amplification on the core-collapse supernovae in highly magnetized progenitors through 3D simulations. By considering rotating models, we observe a strong correlation between the exponential growth of the magnetic field in the gain region and the initiation of shock re vi v al, with a faster onset compared to the non-rotating model. We highlight that the mean magnetic field experiences exponential amplification as a result of α-effect in the dynamo process, which works efficiently with the increasing kinetic helicity of the turbulence within the gain region. Our findings indicate that the significant amplification of the mean magnetic fields leads to the development of locally intense turbulent magnetic fields, particularly in the vicinity of the poles, thereby promoting the re vi v al of the shock by neutrino heating.

Original languageEnglish
Pages (from-to)L96-L101
JournalMonthly Notices of the Royal Astronomical Society: Letters
Issue number1
Publication statusPublished - 2024 Feb 1


  • stars: magnetic fields
  • stars: massive
  • supernovae: general

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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