Thermodynamics conditions of matter in neutron star mergers

Understand

Matter in neutron star collisions can reach densities up to few times the nuclear saturation threshold and temperatures up to one hundred MeV.

• Understanding the structure and composition of such matter requires many-body nonperturbative calculations that are currently highly uncertain.Unique constraints on the neutron star matter are provided by gravitational-wave observations aided by numerical relativity simulations.
• In this work, we explore the thermodynamical conditions of matter and radiation along the merger dynamics.
• We consider 3 microphysical equation of state models and numerical relativity simulations including an approximate neutrino transport scheme.