Head-On Collisions of Charged Black Holes from Rest
We report on head-on collisions of charged black holes. We focus on non-spinning black holes, starting from rest and with the same charge to mass ratio Q∕M. The addition of charge to black holes introduces a new interesting channel of radiation and dynamics, most of which seem to be captured by Newtonian dynamics and flat-space intuition. The amount of gravitational-wave energy generated throughout the collision decreases by about three orders of magnitude as the charge-to-mass ratio Q∕M is increased from 0 to 0.98. This decrease is a consequence of the smaller accelerations present for larger values of the charge.
KeywordsBlack Hole Charged Black Hole Maxwell System Binary Black Hole Newman Black Hole
M.Z. is funded by FCT through grant SFRH/BD/43558/2008. U.S. acknowledges support from the Ramón y Cajal Programme and Grant FIS2011-30145-C03-03 of the Ministry of Education and Science of Spain, the NSF TeraGrid and XSEDE Grant No. PHY-090003, RES Grant Nos. AECT-2012-1-0008 and AECT-2011-3-0007 through the Barcelona Supercomputing Center and CESGA Grant Nos. ICTS-200 and ICTS-221. This work was supported by the DyBHo–256667 ERC Starting Grant, the CBHEO–293412 FP7-PEOPLE-2011-CIG Grant, the NRHEP–295189 FP7-PEOPLE-2011-IRSES Grant, and by FCT—Portugal through projects PTDC/FIS/098025/2008, PTDC/FIS/098032/2008, PTDC/FIS/116625/2010 and CERN/FP/ 116341/2010, the Sherman Fairchild Foundation to Caltech as well as NSERC through a Discover Grant and CIFAR. Research at Perimeter Institute is supported through Industry Canada and by the Province of Ontario through the Ministry of Research & Innovation. Computations were performed on the Blafis cluster at Aveiro University, the Milipeia in Coimbra, the Lage cluster at Centro de Física do Porto, the Bifi Cluster of the University of Zaragoza, the CESGA Cluster Finis Terrae, NICS Kraken and the SDSC Cluster Trestles.
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