Numerical Simulation of Orbiting Black Holes

Bernd Brügmann, Wolfgang Tichy, Nina Jansen
2004 Physical Review Letters  
We present numerical simulations of binary black hole systems which for the first time last for about one orbital period for close but still separate black holes as indicated by the absence of a common apparent horizon. An important part of the method is the construction of comoving coordinates, in which both the angular and radial motion is minimized through a dynamically adjusted shift condition. We use fixed mesh refinement for computational efficiency.
doi:10.1103/physrevlett.92.211101 pmid:15245270 fatcat:cdjccdtrtrh5hcifojyfxczuye