Systematic Spectral Lag Analysis of Swift Known- GRBs

Figure 2

The lag versus isotropic peak luminosity. The blue points are our results. The red points are the results which are reported in Ukwatta et al. 2010. The blue lines are best fit values of power-law fitting. The black dotted lines show the region corresponding to variance . (a) Between 25–50 keV and 15–25 keV, (b) between 50–100 keV and 15–25 keV, (c) between 50–100 keV and 25–50 keV, and (d) between 100–200 keV and 15–25 keV.

(a)

(b)

(c)

(d)