Kicks in charged black hole binaries
arXiv:2207.06429 · doi:10.1103/PhysRevD.106.084017
Abstract
We compute the emission of linear momentum (kicks) by both gravitational and electromagnetic radiation in fully general-relativistic numerical evolutions of quasi-circular charged black hole binaries. We derive analytical expressions for slowly moving bodies and explore numerically a variety of mass ratios and charge-to-mass ratios. We find that for the equal mass case our analytical expression is in excellent agreement with the observed values and, contrarily to what happens in the vacuum case, we find that in presence of electromagnetic fields there is emission of momentum by gravitational waves. We also find that the strong gravitational kicks of binaries with unequal masses affect the electromagnetic kicks, causing them to strongly deviate from Keplerian predictions. For the values of charge-to-mass ratio considered in this work, we observe that magnitudes of the electromagnetic kicks are always smaller than the gravitational ones.
12 pages, 10 figures. v2: Matches published version
References in corpus (12)
- Array Programming with NumPy
- Total recoil: the maximum kick from nonspinning black-hole binary inspiral
- Supermassive recoil velocities for binary black-hole mergers with antialigned spins
- Getting a kick out of numerical relativity
- Binary black-hole evolutions of excision and puncture data
- Discovery of a bright quasar without a massive host galaxy
- Collisions of charged black holes
- Black hole kicks as new gravitational wave observables
- kuibit: Analyzing Einstein Toolkit simulations with Python
- Testing the nonlinear stability of Kerr-Newman black holes
- Initial data for general relativistic simulations of multiple electrically charged black holes with linear and angular momenta
- Does charge matter in high-energy collisions of black holes?