Subgrid modelling of MRI-driven turbulence in differentially rotating neutron stars

[2509.07081] Subgrid modelling of MRI-driven turbulence in differentially rotating neutron stars Skip to main content We gratefully acknowledge support from the Simons Foundation, member institutions , and all contributors.
We present the first implementation of our MHD-Instability-Induced Turbulence (MInIT) model in global Newtonian simulations of MRI-sensitive, differentially rotating, magnetised neutron stars.
Here, we show that by adding the corresponding turbulent stress tensors to the momentum equation, MInIT successfully reproduces the angular momentum transport in neutron stars driven by small-scale turbulence.
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