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Fast Neutrino Flavor Conversions can Help and Hinder Neutrino-Driven Explosions

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arxiv 2305.11207 v2 pith:T4XXZ6UI submitted 2023-05-18 astro-ph.HE astro-ph.SRgr-qchep-phnucl-th

Fast Neutrino Flavor Conversions can Help and Hinder Neutrino-Driven Explosions

Jakob Ehring (1 , 2 , 3) , Sajad Abbar (1) , Hans-Thomas Janka (2) , Georg Raffelt (1) , Irene Tamborra (4) ((1) MPI Physik , (2) MPI Astrophysik
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(3) TUM Garching (4) Niels Bohr Institute)
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classification astro-ph.HE astro-ph.SRgr-qchep-phnucl-th
keywords flavorffcsexplodeexplosionsfastmassesneutrinoprogenitors
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present the first simulations of core-collapse supernovae in axial symmetry with feedback from fast neutrino flavor conversion (FFC). Our schematic treatment of FFCs assumes instantaneous flavor equilibration under the constraint of lepton-number conservation individually for each flavor. Systematically varying the spatial domain where FFCs are assumed to occur, we find that they facilitate SN explosions in low-mass (9-12 solar masses) progenitors that otherwise explode with longer time delays, whereas FFCs weaken the tendency to explode of higher-mass (around 20 solar masses) progenitors.

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Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Collective neutrino-antineutrino pair oscillations

    hep-ph 2026-04 unverdicted novelty 7.0

    In anisotropic neutrino gases, νν-bar pairing instabilities emerge when the excessive pair-occupation number distribution changes sign, producing pair conversions at growth rates comparable to fast flavor instabilities.

  2. Intermittent Turbulence, Fast Flavor Conversion, and Observable Supernova Probes

    astro-ph.HE 2026-01 unverdicted novelty 6.0

    Using a She-Leveque cascade for intermittent turbulence in supernovae, the model predicts a fast flavor conversion fraction of approximately 0.455 and heating corrections of 4-6% whose sign depends on the neutrino spe...

  3. Bifurcated Impact of Neutrino Fast Flavor Conversion on Core-collapse Supernovae Informed by Multi-angle Neutrino Radiation Hydrodynamics

    astro-ph.HE 2026-01 unverdicted novelty 6.0

    Fast flavor conversion of neutrinos bifurcates supernova explosion outcomes: it aids shock revival in low-mass progenitors but inhibits it in higher-mass ones, controlled by mass accretion rate.

  4. Flavor Conversion Enhances or Suppresses Supernova Explodability Independent of the Progenitor Mass

    astro-ph.HE 2026-05 unverdicted novelty 5.0

    Neutrino flavor conversion in supernova cores can enhance or suppress explodability depending on the conversion location, independent of progenitor mass.

  5. Neutrino Flavor Conversion Shapes the Rate of Failed Core-collapse Supernovae

    astro-ph.HE 2026-05 unverdicted novelty 5.0

    Simulations of 195 stellar progenitors indicate that neutrino flavor conversion alters explodability and remnant mass distributions, particularly for stars of 16-30 solar masses.