Basic HTML version of Foils prepared Jan 31 99

Foil 8 1:Event Horizons

From Overview of BBH Simulations Physics Colloquium -- Oct 29 1998. by Scott Klasky
1 The event horizon is the boundary in spacetime between those light rays that can escape to infinity and those that cannot.
  • Matter inside the event horizon is casually. disconnected from our universe and does not effect matter inside our universe.
  • A knowledge of the event horizon requires a knowledge of the entire spacetime.
  • To understand this we look at a model problem, the collapse of a star in spherical symmetry.
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