Abstract
The observed association between supernovae and gamma-ray bursts represents a cornerstone in our understanding of the nature of gamma-ray bursts. The collapsar model provides a theoretical framework for this connection. A key element is the launch of a bipolar jet (seen as a gamma-ray burst). The resulting hot cocoon disrupts the star, whereas the 56Ni produced gives rise to radioactive heating of the ejecta, seen as a supernova. In this discussion paper, I summarize the observational status of the supernova- gamma-ray burst connection in the context of the 'engine' picture of jet-driven supernovae and highlight SN2012bz/GRB 120422A-with its luminous supernova but intermediate high-energy luminosity- as a possible transition object between low-luminosity and jet gamma-ray bursts. The jet channel for supernova explosions may provide new insights into supernova explosions in general.
| Original language | English |
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| Article number | 20120275 |
| Journal | Royal Society of London. Philosophical Transactions. Mathematical, Physical and Engineering Sciences |
| Volume | 371 |
| Issue number | 1992 |
| ISSN | 1364-503X |
| DOIs | |
| Publication status | Published - 13 Jun 2013 |