Kicks in charged black hole binaries

Raimon Luna, Gabriele Bozzola, Vitor Cardoso, Vasileios Paschalidis, Miguel Zilhão

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We compute the emission of linear momentum (kicks) by both gravitational and electromagnetic radiation in fully general-relativistic numerical evolutions of quasicircular 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 the 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.

Original languageEnglish (US)
Article number084017
JournalPhysical Review D
Issue number8
StatePublished - Oct 15 2022

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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