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arXiv:2503.11758astro-ph.HE

Neutrino Flavor Transformation in Neutron Star Mergers

Yi Qiu, David Radice, Sherwood Richers, Maitraya Bhattacharyya

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Abstract

We present the first numerical relativity simulations including neutrino flavor transformations that could result from flavor instabilities, quantum many-body effects, or potential beyond standard model physics in neutron star mergers. We find that neutrino flavor transformations impact the composition and structure of the remnant, potentially leaving an imprint on the post-merger gravitational-wave signal. They also have a significant impact on the composition and nucleosynthesis yields of the ejecta.

arXiv comments
12 pages, 8 figures, accepted by Physical Review Letters
Journal reference
Phys.Rev.Lett. 135 (2025) 9, 091401
DOI
doi:10.1103/h2q7-kn3v
Subjects
astro-ph.HEHigh Energy Astrophysical Phenomena gr-qcGeneral Relativity and Quantum Cosmology

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  1. Neutrinos and Gold [video] 1 comment

    • I'm starting to make videos for the University of Edinburgh. My first one was about this paper saying that neutrino oscillations may increase the formation of gold and other heavy elements in neutron star mergers: • Neutrino flavor transformation in neutron star mergers…

      johncarlosbaezView on HNParent context

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