Further Swift-XRT observations of IceCube 170922A. Evans, P. A. ; Keivani, A. ; Kennea, J. A. ; Fox, D. B. ; Cowen, D. F. ; Osborne, J. P. ; Marshall, F. E. ; Icecube Abstract Publication: GRB Coordinates Network Pub Date: 2017 Bibcode: 2017GCN.21941....1E