Kavli Affiliate: Mamoru Matsuo
| First 5 Authors: Hiroshi Funaki, Yuta Sekino, Hiroyuki Tajima, Shota Kisaka, Nobutoshi Yasutake
| Summary:
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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