The GRB–supernova connection

The discovery and localization of the first afterglows of GRBs rapidly led to the establishment of the long-sought distance scale for the sources (see Chapter 4), which began an earnest observational hunt for their progenitors. A preponderance of evidence linked long-duration, soft-spectrum GRBs with the death of massive stars. The observations of the GRB-supernova (SN) connection, the main subject of this chapter, present the most direct evidence of this physical link.

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