CaltechAUTHORS
Published January 15, 2020 | Version Submitted + Published
Journal Article Open

Amplification of superkicks in black-hole binaries through orbital eccentricity

Creators

  • 1. ROR icon University of Cambridge
  • 2. ROR icon University of Mississippi
  • 3. ROR icon California Institute of Technology
  • 4. ROR icon University of Birmingham
  • 5. ROR icon Johns Hopkins University

Abstract

We present new numerical-relativity simulations of eccentric merging black holes with initially antiparallel 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.

Additional Information

© 2020 American Physical Society. Received 3 October 2019; published 22 January 2020. We thank V. Baibhav for discussions. U.S. is supported by the European Union's H2020 ERC Consolidator Grant "Matter and strong-field gravity: new frontiers in Einstein's theory" Grant No. MaGRaTh–646597 and the STFC Consolidator Grant No. ST/P000673/1. D. G. is supported by Leverhulme Trust Grant No. RPG-2019-350. E. B. is supported by NSF Grant No. PHY-1912550, NSF Grant No. AST-1841358, NASA ATP Grant No. 17-ATP17-0225, and NASA ATP Grant No. 19-ATP19-0051. This work has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant No. 690904. This work was supported by the GWverse COST Action Grant No. CA16104, "Black holes, gravitational waves and fundamental physics." Computational work was performed on the SDSC Comet and TACC Stampede2 clusters through NSF-XSEDE Grant No. PHY-090003, Cambridge CSD3 system through STFC capital Grants No. ST/P002307/1 and No. ST/R002452/1, and STFC operations Grant No. ST/R00689X/1; the University of Birmingham BlueBEAR cluster; the Athena cluster at HPC Midlands +funded by EPSRC Grant No. EP/P020232/1; and the Maryland Advanced Research Computing Center.

Attached Files

Published - PhysRevD.101.024044.pdf

Submitted - 1910.01598.pdf

Files

1910.01598.pdf

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Additional details

Identifiers

Eprint ID
100837
Resolver ID
CaltechAUTHORS:20200122-111639044

Related works

Describes
https://arxiv.org/abs/1910.01598 (URL)

Funding

European Research Council (ERC)
646597
Science and Technology Facilities Council (STFC)
ST/P000673/1
Leverhulme Trust
RPG-2019-350
NSF
PHY-1912550
NSF
AST-1841358
NASA
17-ATP17-0225
NASA
19-ATP19-0051
Marie Curie Fellowship
690904
European Cooperation in Science and Technology
CA16104
NSF
PHY-090003
Science and Technology Facilities Council (STFC)
ST/P002307/1
Science and Technology Facilities Council (STFC)
ST/R002452/1
Science and Technology Facilities Council (STFC)
ST/R00689X/1
University of Birmingham
Engineering and Physical Sciences Research Council (EPSRC)
EP/P020232/1
Maryland Advanced Research Computing Center

Dates

Created
2020-01-22
Created from EPrint's datestamp field
Updated
2021-11-16
Created from EPrint's last_modified field