Table 1
Results of the spectral fits of the T90 duration of GRB 090423 and of the ΔtA,obs time interval for GRB 090618.
| α | β | E p,i | norm. |
|
Δtobs | |
| (keV) | (keV) | (ph / cm2/ s / keV) | (s) | |||
|
|
||||||
| 090618 | –0.66 ± 0.57 | –1.99 ± 0.05 | 284.57 ± 172.10 | 0.3566 ± 0.16 | 0.924 | 6.1 |
| 090423 | –0.78 ± 0.34 | –3.5 ± 0.5 | 433.6 ± 133.5 | 0.015 ± 0.010 | 0.856 | 10.4 |
Notes. The latter is computed in a time interval corresponding to the one expected to be observed if GRB 090618 is transposed at the redshift z = 8.2, and in the observed energy range (89.6−896) keV.
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