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@@ -0,0 +1,14 @@ +Cactus Code Thorn EHFinder +Authors : Peter Diener +CVS info : $Header$ +-------------------------------------------------------------------------- + +Purpose of the thorn: + +To find the event horizon of a numerical spacetime by integrating a null +surface backwards in time. The basic equation is equation 2 in Anninos et. al, +Physical Review Letters, 74, 630, 1995. + +The surface will be parametrized as the 0 value isosurface of a level +set function. Hopefully this will work when the topology changes from +one common event horizon to two individual event horizons. |