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Published December 15, 2017 | Published + Submitted
Journal Article Open

Black-hole head-on collisions in higher dimensions

Abstract

The collision of black holes and the emission of gravitational radiation in higher-dimensional spacetimes are of interest in various research areas, including the gauge-gravity duality, the TeV gravity scenarios evoked for the explanation of the hierarchy problem, and the large-dimensionality limit of general relativity. We present numerical simulations of head-on collisions of nonspinning, unequal-mass black holes starting from rest in general relativity with 4 ≤ D ≤ 10 spacetime dimensions. We compare the energy and linear momentum radiated in gravitational waves with perturbative predictions in the extreme mass ratio limit, demonstrating the strength and limitations of black-hole perturbation theory in this context.

Additional Information

© 2017 American Physical Society. Received 29 September 2017; published 6 December 2017. We are grateful to Roberto Emparan for numerous suggestions and for sharing with us some numerical results. We thank Pau Figueras, Markus Kunesch, Chris Moore, Saran Tunyasuvunakool, Helvi Witek and Miguel Zilhão for very fruitful discussions on this topic. V. C. is indebted to Kinki University in Osaka for hospitality while the last stages of this work were being completed. U.S. and V. C. acknowledge financial support provided under the European Union's H2020 ERC Consolidator Grant "Matter and strong-field gravity: New frontiers in Einstein's theory" Grant Agreement No. MaGRaTh–646597. Research at Perimeter Institute is supported by the Government of Canada through Industry Canada and by the Province of Ontario through the Ministry of Economic Development Innovation. E. B. was supported by NSF Grants No. PHY-1607130 and No. AST-1716715, and by FCT Contract No. IF/00797/2014/CP1214/CT0012 under the IF2014 Programme. This work has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 690904, the COST Action Grant No. CA16104, from STFC Consolidator Grant No. ST/L000636/1, the SDSC Comet, PSC-Bridges and TACC Stampede clusters through NSF-XSEDE Award No. PHY-090003, the Cambridge High Performance Computing Service Supercomputer Darwin using Strategic Research Infrastructure Funding from the HEFCE and the STFC, and DiRAC's Cosmos Shared Memory system through BIS Grant No. ST/J005673/1 and STFC Grants No. ST/H008586/1 and No. ST/K00333X/1. W. G. C. is supported by a STFC studentship. We acknowledge PRACE for awarding us access to MareNostrum at Barcelona Supercomputing Center (BSC), Spain under Grant No. 2016163948.

Attached Files

Published - PhysRevD.96.124006.pdf

Submitted - 1709.10514.pdf

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Additional details

Created:
August 19, 2023
Modified:
October 17, 2023