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The equation of state (EOS) of dense matter is an essential ingredient fornumerical simulations of core-collapse supernovae and neutron star mergers. Theproperties of matter near and above nuclear saturation density are uncertain,which translates into uncertainties in astrophysical simulations and theirmulti-messenger signatures. Therefore, a wide range of EOSs spanning theallowed range of nuclear interactions are necessary for determining thesensitivity of these astrophysical phenomena and their signatures to variationsin input microphysics. We present a new set of finite temperature EOSs based onexperimentally allowed Skyrme forces. We employ a liquid drop model of nucleito capture the non-uniform phase of nuclear matter at sub-saturation density,which is blended into a nuclear statistical equilibrium EOS at lower densities.We also provide a new, open-source code for calculating EOSs for arbitrarySkyrme parametrizations. We then study the effects of different Skyrmeparametrizations on thermodynamical properties of dense astrophysical matter,the neutron star mass-radius relationship, and the core collapse of 15 and 40solar mass stars.

A New Open-Source Nuclear Equation of State Framework based on the Liquid-Drop Model with Skyrme Interaction