Skip to main content
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. See news and announcements

GCN Circular 25476

GRB 190823A: Swift-XRT observations
2019-08-25T19:04:38Z (5 years ago)
Elena Ambrosi at INAF-IASF <>
E. Ambrosi (INAF-IASFPA), A. DAi (INAF-IASFPA) and V. D Elia (ASDC)

report on behalf of the Swift-XRT team:

Swift-XRT has performed follow-up observations of the MAXI-detected

burst GRB 190823A (Iwakiri et al. GCN circ. 25456) in a series of

observations tiled on the sky.

Total exposure time is 1.8 ks, distributed over 7 tiles. The data were

between T0+12.1 ks and T0+18 ks.

One uncatalogued X-ray source has been detected, with the following details:

RA (J2000.0):      279.68736d = 18:38:44.97

Dec (J2000.0):    -43.52789d = -43:31:40.4

Error: 8.6 arcsec (radius, 90% conf.)

Count-rate:   4.1 (+1.7, -1.3) ��10^-2 ct s^ -1

Distance: 18.6 arcmin from MAXI position

The results of the XRT-team automatic analysis of the tiled XRT

observations, including a position-specific upper limit calculator, are

available at .

This circular is an official product of the Swift-XRT team.
Looking for U.S. government information and services? Visit