Evolution of binary black-hole spacetimes.
By Frans Pretorius. Physical Review Letters, 2005
1,044 citations recorded by the source corpus.
We describe early success in the evolution of binary black-hole spacetimes with a numerical code based on a generalization of harmonic coordinates. Indications are that with sufficient resolution this scheme is capable of evolving binary systems for enough time to extract information about the orbit, merger, and gravitational waves emitted during the event. As an example we show results from the evolution of a binary composed of two equal mass, nonspinning black holes, through a single plunge orbit, merger, and ringdown. The resultant black hole is estimated to be a Kerr black hole with angular momentum parameter a approximately 0.70. At present, lack of resolution far from the binary prevents an accurate estimate of the energy emitted, though a rough calculation suggests on the order of 5% of the initial rest mass of the system is radiated as gravitational waves during the final orbit and ringdown.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/ab2df50b60568542ac7e36b63a71e493063c0e00
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Citations in the corpus
- One Channel to Rule Them All? Constraining the Origins of Binary Black Holes Using Multiple Formation Pathways (2020, background): “…with the prescribed spin magnitude, higher spins in BBH components can be attained through hierarchical merger events, which impart a spin on the newly-formed BH of χ ∼ 0.7 for near equal-mass binary mergers with non-spinning components (Pretorius 2005; González et al. 2007; Buonanno et al. 2008).”
- Unequal mass binary black hole plunges and gravitational recoil (2006, background): “Given the tremendous progress that numerical relativity has recently made in simulating binary black hole (BBH) systems [10, 11, 12, 13, 14, 15], fully numerical investigations can now be used to investigate gravitational recoil.”
- The global non-linear stability of the Kerr-de Sitter family of black holes (2016, background): “The key insight, which has been exploited before in the numerics literature [66], [117], is that one can modify the gauged Einstein equation by additional terms, preserving its hyperbolic nature, to arrange for constraint damping, which says that solutions of the correspondingly modified constraint ”
- A new approach to static numerical relativity and its application to Kaluza–Klein black holes (2009, background): “6 Note that this is different from the gauge choice referred to as ‘generalized harmonic coordinates’ in the numerical relativity literature [64, 65], which involves setting ∇2xμ = H, where H is a fixed vector field.”
- Heavy ions and string theory (2013, methodology): “A highly successful, broadly applicable method for simulating general relativity in asymptotically flat space [76, 77] has emerged from a relaxation of the harmonic gauge condition together with some further technical tricks.”
- Multi-messenger observations of a binary neutron star merger (2017, methodology): “This motivated the development of accurate models for the two-body, general-relativistic dynamics (Blanchet et al. 1995; Buonanno & Damour 1999; Pretorius 2005; Baker et al. 2006; Campanelli et al. 2006; Blanchet 2014) that are critical for detecting and interpreting gravitational waves(Abbott et…”
- Black-hole binaries, gravitational waves, and numerical relativity (2010, methodology): “Pretorius had clearly developed a robust method for evolving black-hole binary mergers.”
- EXPLORING SHORT GAMMA-RAY BURSTS AS GRAVITATIONAL-WAVE STANDARD SIRENS (2009, background): “Recent breakthroughs in numerical relativity are making it possible to fully model the strong-field, dynamical merger of the two bodies into one; see Pretorius (2005), Shibata & Uryū (2006), and Etienne et al. (2008) for discussion.”