The supernova/gamma-ray burst/jet connection

Understand

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 bi-polar jet (seen as a gamma-ray burst).
• The resulting hot cocoon disrupts the star while the 56Ni produced gives rise to radioactive heating of the ejecta, seen as a supernova.