Demonstration of the breakup of the protostar due to excess angular momentum. The data is taken from run G6. Each column represents a different time, where t = 0 marks the birth of the protostar. Panels a–d are slices along the z direction through the center of the domain that display the local radiative flux emanating from the cells (see Eq. (1)). The scale bar in panel a applies to panels b–d as well. The mass of the protostar at each snapshot is displayed in the top-right corners of panels a–d. Panels e–h display 2D histograms binning all the cells in our computational domain, which show the distribution of azimuthal velocities divided by $\sqrt{|g_{\mathrm{r}}|r}$ with respect to radius. The color code in the histograms represents the co-latitude θ divided by π, where θ/π = 0.5 corresponds to the equator and θ/π = 1 (respectively 0) corresponds to the south (respectively north) pole. The dotted black lines in panels e–h display v_ϕ/v_crit = 1 (see Eq. (2)). An animated version of this plot is available online.