2004•NASA Technical Reports Server (NASA)Requires access
A Different Point of View towards GRB 031203
E. Ramírez-Ruiz, Jonathan Granot, C. Kouveliotou, S. E. Woosley, S. Patel, P. A. Mazzali
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Abstract
One of the most fundamental characteristics of any explosion is its energy, yet despite lively debates, the gamma-ray burst (GRB) community has still to reach a consensus on whether GRBs are standard bombs with a total energy in their relativistic ejecta approximately 10(exp 51) ergs, or a broad range of phenomena with energies varying by many orders of magnitude. While low energy GRBs may well exist, we show here that observations of GRB 031203, do not require a sub-energetic nature for that event. In fact, contrary to previous claims, the data are more consistent with a typical, powerful GRB seen at an angle of about twice the opening angle of the central jet.