Swift observations of the Fermi-LAT source 4FGL J0206.4-1151 in the error region of IceCube-201130A
Abstract
Swift observed the location of 4FGL J0206.4-1151, the Fermi-LAT source closest to the location of IceCube 201130A (IceCube Collaboration; GCN Circ. 28969) for 4.0 ks between 14:42 UT and 18:05 UT on 2020 December 1. The source is detected by XRT at RA, Dec = 31.6094, -11.8440 (degrees) which corresponds to: RA (J2000): 02h 06m 26.25s Dec (J2000): -11d 50' 38.1" With an uncertainty of 6.4 arcsec (radius, 90% confidence). This position is 2.8 arcmin from the position of the flat spectrum radio quasar PMN J0206-1150, that is associated to the gamma-ray source 4FGL J0206.4-1151 in the Forth Fermi LAT source catalog (Abdollahi et al. 2020, ApJS, 247, 33). The X-ray spectrum (0.3-10 keV) can be fit by an absorbed power law model with a HI column density consistent with the Galactic value in the direction of the source (n_H = 1.7 x 10^20 cm^-2, Ben Bekhti N. et al., 2016, A&A, 594, A116) and a photon index of 1.7+/-0.7. The corresponding 0.3-10 keV flux (unabsorbed) is 1.6 (+1.1, -0.4) x 10^-13 erg cm^-2 s^-1. Simultaneous UVOT observations were performed on 2020 December 1 and the source is detected above 3 sigma in all UVOT filters. The measured magnitudes (Vega system) are V = 19.48 +/- 0.42, B = 19.68 +/- 0.21, U = 18.99 +/- 0.17, W1 = 19.24 +/- 0.18, M2 = 19.30 +/- 0.11, and W2 = 19.21 +/- 0.11.
- Publication:
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GRB Coordinates Network
- Pub Date:
- December 2020
- Bibcode:
- 2020GCN.28979....1G