Scalable technique for measuring neutron star equation of state from gravitational-wave data of coalescing neutron star binary systems.

Binary systems of neutron stars in their final moments of coalescence exert enormous tidal forces on each other, resulting in significant change in the shape of the stars. This change in the shape leaves its signature on the gravitational wave emitted by the binary system. Bayesian inferencing techniques can extract the tidal deformation information from the gravitational wave data. At the fundamental level, the tidal deformation is the macroscopic manifestation of the equation of state of neutron state matter. Thus, gravitational wave data from ground-based interferometers are capable of informing us with how matter interacts at the fundamental level. In this presentation, I will be introducing a scalable infrastructure, named GWXtreme, for measurement of the equation of state of neutron stars that can combine data from detection of multiple binary neutron star coalescence events by the LIGO and Virgo detectors, and mass-radii measurement of isolated pulsars using NASA NICER mission. This method has been developed, keeping in mind the need for scalability in O5 when we will have several times higher rates of detections, leading to large computational overhead of conducting parameter estimation on multiple events. I will also update more recent developments in GWXtreme that makes it a viable choice for measuring equation of state of neutron stars from gravitational wave emitted from coalescing systems of neutron stars and black holes.