Energy density maps, the sum of the kinetic energy density ﹩{\rm{\Gamma }}({\rm{\Gamma }}-1){\rho }^{{\prime} }{c}^{2}﹩ and thermal energy density ﹩{{\rm{\Gamma }}}^{2}{e}^{{\prime} }﹩ of the canonical model (Lc). Different panels correspond to different lab-frame times. The colorbar corresponds to the logarithmic energy density in units of erg cm⁻³. The black solid lines and green dashed lines in the bottom panel are the photospheric radius r_ph and diffusion radius r_diff, respectively.