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Hyperboloidal foliations with scri-fixing in spherical symmetry
Anil Zenginoglu, Sascha Husa
We study in spherical symmetry the conformal compactification for hyperboloidal foliations with nonvanishing constant mean curvature. The conformal factor and the coordinates are c…
Beyond the Bowen-York extrinsic curvature for spinning black holes
Mark Hannam, Sascha Husa, Bernd Bruegmann +2
It is well-known that Bowen-York initial data contain spurious radiation. Although this ``junk'' radiation has been seen to be small for non-spinning black-hole binaries in circula…
Where do moving punctures go?
Mark Hannam, Sascha Husa, Niall Ó Murchadha +3
Currently the most popular method to evolve black-hole binaries is the ``moving puncture'' method. It has recently been shown that when puncture initial data for a Schwarzschild bl…
Calibration of Moving Puncture Simulations
Bernd Bruegmann, Jose A. Gonzalez, Mark Hannam +3
We present single and binary black hole simulations that follow the moving puncture paradigm of simulating black-hole spacetimes without excision, and use moving boxes mesh refinem…
Total recoil: the maximum kick from nonspinning black-hole binary inspiral
Jose A. Gonzalez, Ulrich Sperhake, Bernd Bruegmann +2
When unequal-mass black holes merge, the final black hole receives a ``kick'' due to the asymmetric loss of linear momentum in the gravitational radiation emitted during the merger…
Geometry and Regularity of Moving Punctures
Mark Hannam, Sascha Husa, Denis Pollney +2
Significant advances in numerical simulations of black-hole binaries have recently been achieved using the puncture method. We examine how and why this method works by evolving a s…