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"New constraints on the neutron-star-matter Equation of State"
Tyler Gorda (Helsinki Institute of Physics)

INT Seminar

Date: Monday, November 13, 2017 2:00 PM
Location: PAT C-421


The LIGO/Virgo detection of gravitational waves originating from a neutron-star (NS) merger, GW170817, has recently provided new stringent limits on the tidal deformabilities of the stars involved in the collision. In this talk, I will discuss recent analysis of the implications of this measurement for the NS-matter equation of state (EoS). In this analysis, we generate the most generic family of NS-matter EoSs that interpolate between state-of-the-art theoretical results at low and high baryon density. This, coupled with with the existence of two-solar-mass stars and the current LIGO/Virgo constraint allows us to place strict, robust bounds on, e.g., the maximal masses and radii for a typical 1.4-solar-mass star. Time permitting, I will also discuss work in progress to improve upon the perturbative QCD EoS used in this matching, with the aim of further improving the understanding of the NS-matter EoS.​