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An Off-Axis Model for GRB 031203The low luminosity radio emission of the unusually faint GRB 031203 has been argued to support the idea of a class of intrinsically sub-energetic gamma-ray bursts (GRBs), currently comprising two members. While low energy GRBs probably exist, we show that the collective prompt and multiwavelength observations of the afterglow of GRB 031203, do not necessarily require a sub-energetic nature for that event. In fact, the data are more consistent with a typical, powerful GRB seen at an angle of about twice the opening angle of the central jet. The (redshift corrected) peak energy, E(sub p), of GRB 031203 then becomes approximately 2 MeV, similar to many other GRBs.
Document ID
20050009911
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Ramirez-Ruiz, Enrico
(Washington Univ. Seattle, WA, United States)
Granot, Jonathan
(Washington Univ. Seattle, WA, United States)
Kouveliotou, Chryssa
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Woosley, S. E.
(Washington Univ. Seattle, WA, United States)
Patel, Sandy K.
(Washington Univ. Seattle, WA, United States)
Mazzali, Paolo A.
(Washington Univ. Seattle, WA, United States)
Date Acquired
August 22, 2013
Publication Date
December 1, 2004
Subject Category
Astronomy
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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