Joint approach for reducing eccentricity and spurious gravitational radiation in binary black hole initial data construction

  title={Joint approach for reducing eccentricity and spurious gravitational radiation in binary black hole initial data construction},
  author={Fan Zhang and B'ela Szil'agyi},
  journal={Physical Review D},
At the beginning of binary black hole simulations, there is a pulse of spurious radiation (or junk radiation) resulting from the initial data not matching astrophysical quasi-equilibrium inspiral exactly. One traditionally waits for the junk radiation to exit the computational domain before taking physical readings, at the expense of throwing away a segment of the evolution, and with the hope that junk radiation exits cleanly. We argue that this hope does not necessarily pan out, as junk… Expand
6 Citations
Coping with spurious radiation in binary black hole simulations
Spurious junk radiation in the initial data for binary black hole numerical simulations has been an issue of concern. The radiation affects the masses and spins of the black holes, modifying theirExpand
Gravitational slingshots around black holes in a binary
The speed gain of a test mass from taking a gravitational slingshot around a celestial object (scattering centre) increases with the latter’s speed and compactness (stronger deflection of the mass’Expand
Constructing a boosted, spinning black hole in the damped harmonic gauge
The damped harmonic gauge is important for numerical relativity computations based on the generalized harmonic formulation of Einstein's equations, and is used to reduce coordinate distortions nearExpand
Key elements of robustness in binary black hole evolutions using spectral methods
As a network of advanced-era gravitational wave detectors is nearing its design sensitivity, efficient and accurate waveform modeling becomes more and more relevant. Understanding of the nature ofExpand
Stability of exact force-free electrodynamic solutions and scattering from spacetime curvature
Recently, a family of exact force-free electrodynamic (FFE) solutions was given by Brennan, Gralla and Jacobson, which generalizes earlier solutions by Michel, Menon and Dermer, and other authors.Expand
Decline of the Current Quadrupole Moment during the Merger Phase of Binary Black Hole Coalescence
Utilizing the tools of tendex and vortex, we study the highly dynamic plunge and merger phases of several π -symmetric binary black hole coalescences. In particular, we observe a decline of theExpand


In Gravitation: an introduction to current research
  • 1962
Statistical packages have been used for decades to analyze large datasets or to perform mathematically intractable statistical methods. These packages are not capable of working with random variablesExpand
  • Rev. D 86, 084020
  • 2012
and G
  • Lovelace
  • 2011
Harry (for the LIGO Scientific Collaboration), Class
  • Quantum Grav. 27,
  • 2010
Classical Quantum Gravity 26
  • 114002
  • 2009
  • Rev. D 80, 124010
  • 2009
  • Rev. D 76, 124038
  • 2007
  • Rev. D 67, 044022
  • 2003
  • Rev. Lett. 82, 1350
  • 1999