GRB 220623A: Swift-XRT observations
Abstract
The XRT began observing the field of GRB 220623A at 08:11:23.5 UT, 4029.1 seconds after the BAT trigger. Using promptly downlinked data we find an uncatalogued X-ray source located at RA, Dec 145.39717, 75.82155 which is equivalent to: RA(J2000) = 09h 41m 35.32s Dec(J2000) = +75d 49' 17.6" with an uncertainty of 3.7 arcseconds (radius, 90% containment). This location is 61 arcseconds from the BAT onboard position, within the BAT error circle. This position may be improved as more data are received; the latest position is available at https://www.swift.ac.uk/sper. A power-law fit to a spectrum formed from promptly downlinked event data gives a column density in excess of the Galactic value (2.49 x 10^20 cm^-2, Willingale et al. 2013), with an excess column of 3.4 (+2.74/-2.39) x 10^21 cm^-2 (90% confidence).
- Publication:
-
GRB Coordinates Network
- Pub Date:
- June 2022
- Bibcode:
- 2022GCN.32244....1K