Enhanced emission from GRB 110328A could be evidence for tidal
  disruption of a star
  On March 28, Swift's Burst Alert Telescope discovered a source in the
constellation Draco when it erupted in a series of X-ray blasts. The explosion,
catalogued as gamma-ray burst (GRB) 110328A, repeatedly flared in the following
days, making the interpretation of the event as a GRB unlikely. Here we suggest
that the event could be due to the tidal disruption of a star that approaches
the pericentric distance of a black hole, and we use this fact to derive bounds
on the physical characteristics of such system, based on the variability
timescales and energetics of the observed X-ray emission.
