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GCN Circular 28973

Swift-XRT observations of IceCube 201130A
2020-12-01T13:34:12Z (3 years ago)
Timothee Gregoire at Penn State <>
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), J.A. Kennea (PSU),
H. A. Ayala Solares (PSU) and D.F. Cowen (PSU) report:

Swift observed the field of IceCube 201130A (GCN Circ. 28969) between 20:52:42
2020 November 30 and 22:53:21 on 2020 November 30, collecting a total of 3.8 ks of
cleaned photon counting (PC) mode data. The observations used a 4-point tiling
pattern with a radius of ~0.3 degrees.

We found 2 X-ray sources, as detailed below. All of these are known X-ray
sources consistent with catalogued fluxes. We therefore do not claim any of
them as the likely counterpart to IceCube 201130A.

The 3-sigma upper limit in the field was in the range 4-7 x 10^-3 ct/sec.

The detected sources were:

Source no:   1
RA (J2000):  30.47644 [degrees] = 02h 01m 54.34s
Dec (J2000): -11.8212 [degrees] = -11d 49' 16.3"
Error:       +4.4 [arcsec, 90% conf. radius]
Count rate (0.3-10 keV): 7.7 (+3.8, -2.9) x 10-3 ct s-1
Flux (0.3-10 keV):       3.3 (+1.6, -1.2) x 10-13 erg cm-2 s-1
Note: This source may be affected by optical loading.
Note: This source matches SIMBAD source HD12460.

Source no:   2
RA (J2000):  30.48834 [degrees] = 02h 01m 57.20s
Dec (J2000): -11.5423 [degrees] = -11d 32' 32.2"
Error:       +2.2 [arcsec, 90% conf. radius]
Count rate (0.3-10 keV): 0.117 (+/-0.013) ct s-1
Flux (0.3-10 keV):       5.0 (+/-0.5) x 10-12 erg cm-2 s-1
Note: This source matches SIMBAD source ICRF J020157.1-113233
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