Revisiting neutrino-driven magnetogenesis during stellar core collapse
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arXiv
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866908804886560768 |
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| author | Zhang, Fan |
| author_facet | Zhang, Fan |
| contents | The literature has not converged onto a precise depiction of the magnetogenesis process for pulsars, and it is profitable to preliminarily but exhaustively assess the viability of the plethora of alternative proposals, before substantial efforts are invested into simulating them in detail. In this note, we tackle one of them, taking notice of an earlier work that suggests neutrino ponderomotive force could spawn a magnetic field not so far off from pulsar strengths. We reexamine this mechanism with more modern technology, accounting for actual core collapse dynamics, and show that this mechanism is likely less powerful than originally envisioned. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_01659 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Revisiting neutrino-driven magnetogenesis during stellar core collapse Zhang, Fan High Energy Astrophysical Phenomena The literature has not converged onto a precise depiction of the magnetogenesis process for pulsars, and it is profitable to preliminarily but exhaustively assess the viability of the plethora of alternative proposals, before substantial efforts are invested into simulating them in detail. In this note, we tackle one of them, taking notice of an earlier work that suggests neutrino ponderomotive force could spawn a magnetic field not so far off from pulsar strengths. We reexamine this mechanism with more modern technology, accounting for actual core collapse dynamics, and show that this mechanism is likely less powerful than originally envisioned. |
| title | Revisiting neutrino-driven magnetogenesis during stellar core collapse |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2602.01659 |