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astro-ph2005
Cosmological constraints with GRBs: homogeneous medium vs wind density profile
G. Ghirlanda, G. Ghisellini, C. Firmani +3
We present the constraints on the cosmological parameters obtained with the -- correlation found with the most recent sample of 19 GRBs with spectroscopically me…
astro-ph2005
The peak luminosity - peak energy correlation in GRBs
G. Ghirlanda, G. Ghisellini, C. Firmani +2
We derive the peak luminosity - peak energy (L_iso - E_peak) correlation using 22 long Gamma-Ray Bursts (GRBs) with firm redshift measurements. We find that its slope is similar to…