GRB 191221B: Swift/UVOT redshift
Abstract
The Swift/UVOT obtained a 49s grism spectrum of GRB 191221B 242 s after the BAT trigger (Laha et al., GCN Circ. 26534). The spectrum shows a clear break at 2008 Angstrom, suggesting a redshift of z=1.19. At that redshift, the line of He II 1640A is well defined and N II 2143A is present, as well as possibly N V at 1243 A.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- December 2019
- Bibcode:
- 2019GCN.26538....1K