GRB 231220A: Swift-XRT follow-up observations
Abstract
Swift-XRT has performed follow-up observations of the GUANO-detected burst GRB 231220A, collecting 3.6 ks of Photon Counting (PC) mode data between T0+27.0 ks and T0+39.5 ks. No candidate counterpart was detected, with an upper limit of 2.2×10-3 ct s-1 at the best BAT position (GCN 35409). One uncatalogued X-ray source was flagged as spurious after manual inspection. The results of the full analysis of the XRT observations are available at https://www.swift.ac.uk/ToO_GRBs/00021638. This circular is an official product of the Swift-XRT team.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- December 2023
- Bibcode:
- 2023GCN.35411....1S