On the moment of inertia of PSR J0737-3039 A from LIGO/Virgo and NICER

We perform a Bayesian analysis of neutrons star moment inertia by utilizing the available gravitational-wave data from LIGO/Virgo (GW170817 and GW190425) mass-radius measurements Neutron Star Interior Composition Explorer (PSR J0030+0415 PSR J0740+6620), incorporating possible phase transition in pulsar inner core. find that A double binary J0737-3039 is $\sim1.30\times10^{45}\,{\rm g\,cm^2}$, which only slightly depends on employed hadronic equation states. also demonstrate how measurement would improve our knowledge state relation for neutron stars discuss whether quark deconfinement supported forthcoming could be consistent with this hypothesis. if star, its large value $\sim1.55\times10^{45}\,{\rm g\,cm^2}$ suggesting possibility distinguishing it (hybrid-)neutron J0737-3039A inertia. finally moment-of-inertia-compactness universal relations provide analytical fits both results based analysis.