Speaker
Description
The increasing number of compact binary coalescences observed by the LIGO-Virgo-KAGRA (LVK) Collaboration, highlighted by the landmark multimessenger detection of the binary neutron star merger GW170817, has opened new frontiers in nuclear astrophysics. This report presents a methodology to constrain the maximum mass of neutron stars, and consequently the neutron star equation of state, by combining gravitational-wave and electromagnetic observations. Specifically, gravitational-wave data provide a precise measurement of the total mass of the binary system. By determining, through electromagnetic signatures, whether the post-merger remnant promptly collapses to a black hole or forms a stable neutron star, we can establish observational upper and lower bounds on the maximum mass. The details of this multimessenger approach and its implications for understanding ultra-dense matter will be discussed.