Absolute Magnitude Distribution And Light Curves Of Gamma-Ray Burst Supernovae

Abstract

Photometry data were collected from the literature and analyzed for supernovae that are thought to have a gamma-ray burst association. There are several gamma-ray burst afterglow light curves that appear to have a supernova component. For these light curves, the supernova component was extracted and analyzed. A supernova light curve model was used to help determine the peak absolute magnitudes as well as estimates for the kinetic energy, ejected mass and nickel mass in the explosion. The peak absolute magnitudes are, on average, brighter than those of similar supernovae (stripped-envelope supernovae) that do not have a gamma-ray burst association, but this can easily be due to a selection effect. However, the kinetic energies and ejected masses were found to be considerably higher, on average, than those of similar supernovae without a gamma-ray burst association.

Accepted by AJ, 16 pages, 5 figures

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• A Trio of GRB-SNe: GRB 120729A, GRB 130215A / SN 2013ez and GRB 130831A / SN 2013fu
• Multiwavelength analysis of three SNe associated with GRBs observed by GROND
• The long-active afterglow of GRB 210204A: Detection of the most delayed flares in a Gamma-Ray Burst