期刊
ASTROPHYSICAL JOURNAL
卷 625, 期 2, 页码 L91-L94出版社
IOP PUBLISHING LTD
DOI: 10.1086/431237
关键词
gamma rays : bursts; hydrodynamics; ISM : jets and outflows; supernovae : general
The low-luminosity radio emission of the unusually faint GRB 031203 has been argued to support the idea of a class of intrinsically subenergetic 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 subenergetic 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 intrinsic peak energy E p of GRB 031203 then becomes similar to 2 MeV, similar to that of many other GRBs.
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