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Horizon dynamics of distorted rotating black holes

Chu, Tony and Pfeiffer, Harald P. and Cohen, Michael I. (2011) Horizon dynamics of distorted rotating black holes. Physical Review D, 83 (10). Art. No. 104018. ISSN 2470-0010.

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We present numerical simulations of a rotating black hole distorted by a pulse of ingoing gravitational radiation. For strong pulses, we find up to five concentric marginally outer trapped surfaces. These trapped surfaces appear and disappear in pairs, so that the total number of such surfaces at any given time is odd. The world tubes traced out by the marginally outer trapped surfaces are found to be spacelike during the highly dynamical regime, approaching a null hypersurface at early and late times. We analyze the structure of these marginally trapped tubes in the context of the dynamical horizon formalism, computing the expansion of outgoing and incoming null geodesics, as well as evaluating the dynamical horizon flux law and the angular momentum flux law. Finally, we compute the event horizon. The event horizon is well-behaved and approaches the apparent horizon before and after the highly dynamical regime. No new generators enter the event horizon during the simulation.

Item Type:Article
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Pfeiffer, Harald P.0000-0001-9288-519X
Additional Information:© 2011 American Physical Society. Received 11 November 2010; published 6 May 2011. We thank Ivan Booth, Yanbei Chen, Stephen Fairhurst, and Lee Lindblom for useful discussions. We are especially grateful to Mark A. Scheel and Keith D. Matthews for discussions related to the evaluation of the flux laws. Calculations have been performed using the Spectral Einstein Code (SpEC) [33]. This research was supported in part by grants from the Sherman Fairchild Foundation and the Brinson Foundation to Caltech and by NSF Grants No. PHY-0601459 and No. PHY-1005655 and NASA Grant No. NNX09AF97G at Caltech. H. P. gratefully acknowledges support from the NSERC of Canada, from the Canada Research Chairs Program, and from the Canadian Institute for Advanced Research.
Funding AgencyGrant Number
Sherman Fairchild FoundationUNSPECIFIED
Brinson FoundationUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Canada Research Chairs ProgramUNSPECIFIED
Canadian Institute for Advanced Research (CIAR)UNSPECIFIED
Issue or Number:10
Classification Code:PACS: 04.25.dg, 04.25.D-
Record Number:CaltechAUTHORS:20110520-104357160
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:23749
Deposited By: Tony Diaz
Deposited On:20 Jun 2011 16:34
Last Modified:09 Mar 2020 13:19

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