Amplification of superkicks in black-hole binaries through orbital eccentricity

Sperhake, Ulrich and Rosca-Mead, Roxana and Gerosa, Davide and Berti, Emanuele (2020) Amplification of superkicks in black-hole binaries through orbital eccentricity. Physical Review D, 101 (2). Art. No. 024044. ISSN 2470-0010. https://resolver.caltech.edu/CaltechAUTHORS:20200122-111639044

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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.

Item Type:

Article

Related URLs:

URL	URL Type	Description
https://doi.org/10.1103/physrevd.101.024044	DOI	Article
https://arxiv.org/abs/1910.01598	arXiv	Discussion Paper

ORCID:

Author	ORCID
Sperhake, Ulrich	0000-0002-3134-7088
Rosca-Mead, Roxana	0000-0001-5666-1033
Gerosa, Davide	0000-0002-0933-3579
Berti, Emanuele	0000-0003-0751-5130

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.

Funders:

Funding Agency	Grant Number
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	UNSPECIFIED
Engineering and Physical Sciences Research Council (EPSRC)	EP/P020232/1
Maryland Advanced Research Computing Center	UNSPECIFIED

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CaltechAUTHORS:20200122-111639044

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https://resolver.caltech.edu/CaltechAUTHORS:20200122-111639044

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ID Code:

100837

Collection:

CaltechAUTHORS

Deposited By:

Tony Diaz

Deposited On:

22 Jan 2020 23:50

Last Modified:

22 Jan 2020 23:50

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