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A systematic study of proto-neutron star convection in three-dimensional core-collapse supernova simulations

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arxiv 1912.07615 v2 pith:ZDEGHDTI submitted 2019-12-16 astro-ph.HE

A systematic study of proto-neutron star convection in three-dimensional core-collapse supernova simulations

Hiroki Nagakura , Adam Burrows , David Radice , David Vartanyan This is my paper
classification astro-ph.HE
keywords convectionccsncore-collapsedynamicsfindimpactlargemodels
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This paper presents the first systematic study of proto-neutron star (PNS) convection in three dimensions (3D) based on our latest numerical Fornax models of core-collapse supernova (CCSN). We confirm that PNS convection commonly occurs, and then quantify the basic physical characteristics of the convection. By virtue of the large number of long-term models, the diversity of PNS convective behavior emerges. We find that the vigor of PNS convection is not correlated with CCSN dynamics at large radii, but rather with the mass of PNS $-$ heavier masses are associated with stronger PNS convection. We find that PNS convection boosts the luminosities of $\nu_{\mu}$, $\nu_{\tau}$, $\bar{\nu}_{\mu}$, and $\bar{\nu}_{\tau}$ neutrinos, while the impact on other species is complex due to a competition of factors. Finally, we assess the consequent impact on CCSN dynamics and the potential for PNS convection to generate pulsar magnetic fields.

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Cited by 2 Pith papers

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  1. Effects of Rotation on 3D Core-Collapse Supernova Models for Low-Mass Progenitors

    astro-ph.HE 2026-07 conditional novelty 5.0

    For a low-mass CCSN progenitor, rotation alone weakly and non-monotonically affects explosion energy and observables; only the fastest spin yields T/|W| spiral modes and spin-kick alignment, with core spin amplified by ~4000.

  2. Observables and conformal properties of dark matter admixed isentropic neutron stars

    hep-ph 2026-06 unverdicted novelty 4.0

    DM admixture in isentropic neutron stars can mimic quark-matter conformality signatures via competition between thermal effects and dark sector softening.