A lesson from GW170817: most neutron star mergers result in tightly collimated successful GRB jets

Paz Beniamini, Maria Petropoulou, Rodolfo Barniol Duran +1

The joint detection of gravitational waves (GWs) and $\gamma$-rays from a binary neutron-star (NS) merger provided a unique view of off-axis GRBs and an independent measurement of the N…