All Tables

Table 1: Optical properties of GRBs in our sample. References are given for $\beta _{\rm o}$ , $A_{R}^{\rm Gal}$ , $A_{V}^{\rm host}$ and $A_{R(1+z)}^{\rm host}$ .
Table 2: Distribution width of different quantities, according to a Gaussian fit.
Table 3: X-ray properties of the GRBs with known redshift and data collected from the literature. $\alpha$ and $\beta _{\rm X}$ are the temporal and spectral power law indices, respectively [i.e. $F(\nu ,t)\propto t^{-\alpha }\nu ^{-\beta _{\rm X}}$ ]. $F_{\rm X}$ is the observed X-ray flux integrated in the reported energy band and $L_{10~{\rm keV}}^{12~{\rm h}}$ is the monochromatic X-ray luminosity at 12 h (rest frame) calculated at 10 keV.
Table 4: Values of redshift, $E_{\rm\gamma , iso}$ and the semiaperture jet angle $\theta _{\rm j}$ used in Fig. 8, taken from Ghirlanda et al. (2004). When present, the values in parenthesis are the errors.
Table 5: SWIFT long bursts with spectroscopically measured redshift.