Building Neutron Stars with the MUSES Calculation Engine

by Mateus Reinke Pelicer (Kent State University)

Tuesday 15 Apr 2025, 11:00 → 13:00 US/Eastern

Small Seminar Room

Building a description (Equation of State) of nuclear matter valid at arbitrary thermodynamic conditions is a difficult task, even when restricted to the zero temperature limit. In this talk, we will discuss how to build a Neutron Star using three different Equation of State models in their specific range of validity using the MUSES framework: Crust Density Functional Theory valid starting at low densities, Chiral Effective Field Theory valid around saturation density, and the Chiral Mean Field Model valid beyond saturation density. These equations of state are matched together through the Synthesis module and coupled to a novel full-general-relativity solver module (QLIMR) that calculates neutron star properties. We also study the time evolution and bulk viscosity of the different equations of state using the Flavor Equilibration module.