Figure 3.
Comparison of the 3-mm afterglow light curve of nearby lGRB 130427A (Perley et al. 2014) to the present set of mm-wavelength upper limits (1σ) of four sGRBs (from Table 2) along with another set of upper limits of 5 sGRBs as discussed in Castro-Tirado et al. (2019) placed at a common redhsift of z = 0.34.