A Hypernova Model for SN 2003dh/GRB 030329

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

GRB 030329 has provided solid evidence for the Gamma-Ray Burst -Supernova connection. Spectral observations showed that GRB 030329 is associated with a hypernova, SN 2003dh. We constructed an ejecta model for SN 2003dh by reproducing the spectra. This model is constructed by combining the models for SNe 1998bw and 1997ef. We named this model COMDH. We found that the energetic model, in which Mej = 8M&sun; (Mms ~ 35 - 40M&sun;, EK = 4 × 1052 ergs, and M (56Ni) = 0.35M&sun; , is also necessary for light curve fitting.

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