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Gravity-dominated unequal-mass black hole collisions

Author(s): Sperhake, Ulrich; Berti, Emanuele; Cardoso, Vitor; Pretorius, Frans

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Abstract: We continue our series of studies of high-energy collisions of black holes investigating unequal-mass, boosted head-on collisions in four dimensions. We show that the fraction of the center-of-mass energy radiated as gravitational waves becomes independent of mass ratio and approximately equal to 13% at large energies. We support this conclusion with calculations using black hole perturbation theory and Smarr’s zero-frequency limit approximation. These results lend strong support to the conjecture that the detailed structure of the colliding objects is irrelevant at high energies.
Publication Date: 15-Feb-2016
Electronic Publication Date: 4-Feb-2016
Citation: Sperhake, Ulrich, Berti, Emanuele, Cardoso, Vitor, Pretorius, Frans. (2016). Gravity-dominated unequal-mass black hole collisions. PHYSICAL REVIEW D, 93 (10.1103/PhysRevD.93.044012
DOI: doi:10.1103/PhysRevD.93.044012
ISSN: 2470-0010
EISSN: 2470-0029
Type of Material: Journal Article
Journal/Proceeding Title: PHYSICAL REVIEW D
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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