Amplification of superkicks in black-hole binaries through orbital eccentricity
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Sperhake, Ulrich https://orcid.org/0000-0002-3134-7088
Rosca-Mead, Roxana https://orcid.org/0000-0001-5666-1033
Gerosa, Davide
Berti, Emanuele
Abstract
We present new numerical-relativity simulations of eccentric merging black holes with initially anti-parallel spins lying in the orbital plane (the so-called superkick configuration). Binary eccentricity boosts the recoil of the merger remnant by up to 25 %. The increase in the energy flux is much more modest, and therefore this kick enhancement is mainly due to asymmetry in the binary dynamics. Our findings might have important consequences for the retention of stellar-mass black holes in star clusters and supermassive black holes in galactic hosts.
Description
Keywords
gr-qc, gr-qc, astro-ph.HE
Journal Title
Physical Review D: Particles, Fields, Gravitation and Cosmology
Conference Name
Journal ISSN
1550-2368
2470-0029
2470-0029
Volume Title
101
Publisher
American Physical Society
Publisher DOI
Rights
All rights reserved
Sponsorship
European Research Council (646597)
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (690904)
Science and Technology Facilities Council (ST/P000673/1)
Science and Technology Facilities Council (ST/R002452/1)
Science and Technology Facilities Council (ST/R00689X/1)
STFC (1628481)
Science and Technology Facilities Council (ST/M007065/1)
STFC (ST/M007073/1)
STFC (ST/T001550/1)
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (690904)
Science and Technology Facilities Council (ST/P000673/1)
Science and Technology Facilities Council (ST/R002452/1)
Science and Technology Facilities Council (ST/R00689X/1)
STFC (1628481)
Science and Technology Facilities Council (ST/M007065/1)
STFC (ST/M007073/1)
STFC (ST/T001550/1)