Summary
From both photometric and broadband spectral monitoring of γ-ray burst (GRB) lightcurve “bumps,” particularly in GRB011121, a strong case grew for a supernova (SN) origin. The GRB-SN connection was finally solidified beyond a reasonable doubt with the discovery that the bump in GRB030329 was spectroscopically similar to a bright Type Ic SN. In light of this result, I re-assess the previous SN bump claims and conclude that: 1) the distribution of GRB-SN bump peak magnitudes is consistent with the local Type Ib/c SNe peak distribution and 2) the late-time bumps in all long-duration GRBs are likely supernovae.
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Bloom, J. (2005). Optical Bumps in Cosmological GRBs as Supernovae. In: Marcaide, JM., Weiler, K.W. (eds) Cosmic Explosions. Springer Proceedings in Physics, vol 99. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-26633-X_56
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DOI: https://doi.org/10.1007/3-540-26633-X_56
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