Wiersema, K.K.WiersemaCurran, P. A.P. A.CurranKruhler, T.T.KruhlerD'Elia, ValerioValerioD'Elia2020-09-172020-09-172013-04-01https://hdl.handle.net/20.500.13025/3431VizieR On-line Data Catalog J/MNRAS/426/2. Originally published in 2012MNRAS.426....2WGRB 091018 triggered the Burst Alert Telescope (BAT) on board the Swift satellite at 20 48 19 ut on 2009 October 18 (trigger 373172; Stamatikos et al., 2009GCN.10034....1S). We acquired imaging polarimetry using the Focal Reducer and low dispersion Spectrograph (FORS2) mounted on Unit Telescope 1 (Antu) of the VLT, using the FORS2 Rspecial filter. (1 data file).Gamma raysPhotometry Comment table3.dat 385x52 Log of our photometryhttp://adsabs.harvard.edu/abs/2013yCat..74260002W2013yCat..74260002W