Neutrino luminosities for the gray simulation compared to the simulations presented in O’Connor et al. (2018; semitransparent colored lines). The purple lines indicate the results from the simulation based on the original gray transport from Foucart et al. (2016), and the black lines represent the result from the simulation using the improvements detailed in this work. The luminosity of the electron neutrinos (solid lines) and electron anti-neutrinos (dot-dashed lines) are shown in the left panel, and the luminosity of the heavy-lepton neutrinos is shown in the right panel (dashed lines). Time is given in seconds after bounce. The inset in the left panel shows a zoom-in of the peak centered around ~0.l s after bounce.