All Tables

Table 1: Fitted parameters describing the temporal evolution of the afterglow. $\delta _1$ and $\delta _2$ are the early- and late-time temporal slopes, and $t_{\rm b}$ is the break time (measured in hours since Aug. 13.1141 UT); see Eq. (1). Errors are 1- $\sigma$ .
Table 2: Time evolution of the spectral index ( $F_\nu \propto \nu ^{-\alpha }$ ). Galactic (but not intrinsic) extinction has been accounted for by assuming A_V = 0.42.
Table 3: Predicted slopes and comparison with our observed values $\delta _1 = 0.78\pm 0.02$ and $\delta _2 = 1.44 \pm 0.04$ for different models (all in the framework of a spherical relativistic fireball). $\nu _{\rm i}$ and $\nu _{\rm c}$ are the standard injection and cooling frequencies (defined e.g. in Sari et al. 1998). $\nu _{\rm o}$ spans the whole observed band, from optical ( $\sim$ 10¹⁴ Hz) to X-ray ( $\sim$ 10¹⁸ Hz).