Fast Neutrino Flavor Conversions can Help and Hinder Neutrino-Driven Explosions
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866913630137614336 |
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| author | Ehring, Jakob Abbar, Sajad Janka, Hans-Thomas Raffelt, Georg Tamborra, Irene |
| author_facet | Ehring, Jakob Abbar, Sajad Janka, Hans-Thomas Raffelt, Georg Tamborra, Irene |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_11207 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Fast Neutrino Flavor Conversions can Help and Hinder Neutrino-Driven Explosions Ehring, Jakob Abbar, Sajad Janka, Hans-Thomas Raffelt, Georg Tamborra, Irene High Energy Astrophysical Phenomena Solar and Stellar Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology Nuclear Theory 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. |
| title | Fast Neutrino Flavor Conversions can Help and Hinder Neutrino-Driven Explosions |
| topic | High Energy Astrophysical Phenomena Solar and Stellar Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2305.11207 |