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arxiv: 2503.06068 · v2 · pith:KXO4YWWEnew · submitted 2025-03-08 · 🌌 astro-ph.HE

Gyromagnetic Angular Momentum Interconversion in Neutron Stars

Hiroshi Funaki , Yuta Sekino , Hiroyuki Tajima , Shota Kisaka , Nobutoshi Yasutake , Mamoru Matsuo This is my paper
classification 🌌 astro-ph.HE
keywords neutrongyromagneticangularcorecrustmacroscopicmicroscopicmomentum
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We propose a novel mechanism for angular momentum (AM) exchange between the crust and core of a neutron star (NS) via the gyromagnetic effect. Using extended hydrodynamics, we model the star by incorporating macroscopic AM and microscopic AM originating from neutron orbital and spin AM. We reveal that macroscopic dynamics in the crust can inform microscopic AM in the core leading to neutron spin polarization, and offer alternative scenario of (anti-)glitches. This work highlights the overlooked multi-scale AM interconversions in NS physics, paving the way for gyromagnetic astrophysics.

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

  1. Thermal Spin Polarization Driven by Nuclear Spin-Orbit Coupling in Neutron Star Pasta

    nucl-th 2026-05 unverdicted novelty 6.0

    An effective two-band model of surface neutrons shows that nuclear spin-orbit coupling and density gradients at neutron-star pasta surfaces generate thermal spin polarization without magnetic fields.