Speaker
Description
Understanding the equation of state (EOS) of dense matter in neutron star cores remains one of the central challenges in nuclear physics and astrophysics. Recent multimessenger observations, including gravitational-wave signals from binary neutron star mergers together with X-ray and radio pulsar measurements, have opened unprecedented opportunities to probe matter at supranuclear densities. In this talk, I will present recent progress in developing novel, EOS-insensitive scaling relations connecting neutron star observables, namely mass, radius, and tidal deformability, to the EOS of dense matter in their cores. Derived from the relativistic stellar structure equations, these scalings establish direct links between astrophysical observables and key microscopic quantities, including the EOS parameter, defined as the pressure to energy density ratio, as well as the pressure, energy density, and sound speed at supranuclear densities. Implications for the maximum mass, conformal limit, and innermost-core EOS will also be discussed.