SGRB luminosity distribution of our model population (thick solid red histogram) compared to two luminosity function models based on observations (Wanderman & Piran 2015 – green solid line and shaded area – and Ghirlanda et al. 2016 – purple solid line and shaded area). Thinner histograms show the luminosity distributions of sub-classes of jets belonging to three viewing angle bins, reported in the legend. The grey line and filled horizontal band show the binary neutron star merger local rate based on gravitational wave observations (The LIGO Scientific Collaboration 2019).