2007

Hyperboloidal foliations and scri-fixing

Zenginoğlu, Anıl

Understand

We discuss a gauge choice which allows us to avoid the introduction of artificial timelike outer boundaries in numerical studies of test fields based on a 3+1 decomposition of asymptotically flat background spacetimes.

  • The main idea is to include null infinity in the computational domain by conformally compactifying the metric on hyperboloidal foliations and fixing the spatial coordinate location of null infinity, i.e.
  • scri-fixing.
  • We construct such coordinates explicitly on Minkowski, Schwarzschild and Kerr spacetimes.

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