Swift observations of GRB 070809. Marshall, F. E. ; Barthelmy, S. D. ; Burrows, D. N. ; Chester, M. M. ; Cummings, J. ; Evans, P. A. ; Roming, P. ; Gehrels, N. Abstract Publication: GCN Report Pub Date: 2007 Bibcode: 2007GCNR...80....1M