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GCN Circular 28749

Swift-XRT observations of IceCube 201021A (2)
2020-10-22T15:46:10Z (4 years ago)
Timothee Gregoire at Penn State <>
H. A. Ayala Solares (PSU), D.F. Cowen (PSU), J. DeLaunay (PSU),
D. B. Fox (PSU), A. Keivani (Columbia U.), J.P. Osborne (U. Leicester),
F. Krauss (PSU), T. Gregoire (PSU), P.A. Evans (U. Leicester) and
J.A. Kennea (PSU) report:

The Swift observation of the field of IceCube 201021A (GCN Circ. 28715)
reported in GCN Circ. 28724 (
had not finished, there has been 300s more observation time and a fifth
source has been detected. We report it here for completeness.
A fifth X-ray source has been found, which is unknown but with count rate
consistent with the previous non-detections. We therefore do not claim it
as the likely counterpart to IceCube 201021A.

The fifth detected source was:

Source no:   5
RA (J2000):  260.56090 [degrees] = 17h 22m 14.62s
Dec (J2000): +14.5899 [degrees] = +14d 35' 23.6"
Error:       +6.5 [arcsec, 90% conf. radius]
Count rate (0.3-10 keV): 4.3 (+2.3, -1.7) x 10-3 ct s-1
Flux (0.3-10 keV):       1.8 (+1.0, -0.7) x 10-13 erg cm-2 s-1
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