(a)
(b)
Figure 5: (a) relation with the addition of GRBs with an onset trend in the X-ray band (GRBs 070208 and 080319C; red stars), computed by RS peaks or probable afterglow peaks (pink open circles), lower values of obtained from single power law decay light curves (pink solid triangles), and strong lower values of for Fermi/LAT GRBs 080916C, 090902B, and 090510 (red open triangles) calculated from opacity limits with Fermi/LAT observations. The solid line indicates the best fit of the relation, . The two dashed lines represent the deviation, where the standard deviation of the ratio for the data sample is . (Figure after Liang et al. [164]; see Figure therein. @ AAS. Reproduced with permission.) (b) versus distribution. The best-fit line is given by with . The triangles represent the bursts with only lower values and the star indicates the only short burst in the sample, GRB090510. (Figure after Lü et al. [143]; see Figure therein. @ AAS. Reproduced with permission.)