GCN Circular 19000
Subject
GRB 160206A: Swift/UVOT observations
Date
2016-02-07T20:04:48Z (9 years ago)
From
Massimiliano de Pasquale at IASF-Palermo <m.depasquale@ucl.ac.uk>
M. De Pasquale (PSU) and A. Melandri (INAF-OAB)
report on behalf of the Swift/UVOT team:
The Swift/UVOT began observing the field of MAXI-detected GRB
160206A (Furuya et al., GCN Circ. 18993) 46.2 ks after the trigger.
No optical afterglow consistent with the XRT source 2 given by Page
et al. (GCN Circ. 18996) is detected in the UVOT exposures.
Preliminary 3-sigma upper limit using the UVOT photometric system
(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the summed UVOT
exposures is:
Filter T_start(s) T_stop(s) Exp(s) 3sigma UL Mag
u 48081 52769 909 21
Source 1 is found to be consistent with the magnitude 12.3 object
TyC 7149 2271-1.
These magnitudes are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.47 in the direction of the burst
(Schlegel et al. 1998).
[GCN OPS NOTE(08feb16): Per author's request, "XRT source 1"
was changed to "XRT source 2", and "Source 2 is" was changed
to "Source 1 is".]