JWST detection of a supernova associated with GRB 221009A without an r-process signature
Nature Astronomy, Published online: 12 April 2024; doi:10.1038/s41550-024-02237-4 JWST observations of GRB 221009A reveal the associated supernova, confirming that the GRB resulted from the collapse of a rapidly rotating massive star. The lack of r-process emission suggests that these extreme