GRB 050416b:Swift XRT afterglow upper limits. La Parola, V. ; Mangano, V. ; Kennea, J. A. ; Burrows, D. N. ; Sakamoto, T. ; Hurkett, C. P. ; Gehrels, N. Abstract Publication: GRB Coordinates Network Pub Date: 2005 Bibcode: 2005GCN..3362....1L