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Multipole moments on the common horizon in a binary-black-hole simulation

Chen, Yitian and Kumar, Prayush and Khera, Neev and Deppe, Nils and Dhani, Arnab and Boyle, Michael and Giesler, Matthew and Kidder, Lawrence E. and Pfeiffer, Harald P. and Scheel, Mark A. and Teukolsky, Saul A. (2022) Multipole moments on the common horizon in a binary-black-hole simulation. Physical Review D, 106 (12). ISSN 2470-0010. doi:10.1103/physrevd.106.124045.

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We construct the covariantly defined multipole moments on the common horizon of an equal-mass, nonspinning, quasicircular binary-black-hole system. We see a strong correlation between these multipole moments and the gravitational waveform. We find that the multipole moments are well described by the fundamental quasinormal modes at sufficiently late times. For each nonzero multipole moment with ℓ ≤ 6, at least two fundamental quasinormal modes of different ℓ are detectable in the best model. These models provide faithful estimates of the true mass and spin of the remnant black hole. We also show that by including overtones, the ℓ = m = 2 mass multipole moment admits an excellent quasinormal-mode description at all times after the merger. This demonstrates the perhaps surprising power of perturbation theory near the merger.

Item Type:Article
Related URLs:
URLURL TypeDescription
Chen, Yitian0000-0002-8664-9702
Kumar, Prayush0000-0001-5523-4603
Khera, Neev0000-0003-3515-2859
Deppe, Nils0000-0003-4557-4115
Dhani, Arnab0000-0001-9930-9101
Boyle, Michael0000-0002-5075-5116
Giesler, Matthew0000-0003-2300-893X
Kidder, Lawrence E.0000-0001-5392-7342
Pfeiffer, Harald P.0000-0001-9288-519X
Scheel, Mark A.0000-0001-6656-9134
Teukolsky, Saul A.0000-0001-9765-4526
Additional Information:We thank Abhay Ashtekar, Bangalore Sathyaprakash, Ssohrab Borhanian, Leo Stein, and Robert Owen for useful discussions. Computations for this work were performed with the Wheeler cluster at Caltech and the Bridges system (and XSEDE) at the Pittsburgh Supercomputing Center (PSC). This work was supported in part by the Sherman Fairchild Foundation and by NSF Grants No. PHY-2011961, No. PHY-2011968, and No. OAC-1931266 at Caltech, as well as NSF Grants No. PHY-1912081, No. OAC-1931280, and No. PHY-2209655 at Cornell. This work was also supported by NSF Grant No. PHY-1806356, No. PHY-2012083, the Eberly Chair funds of Penn State University, and the Mebus Fellowship to N. K. P. K. acknowledges support of the Department of Atomic Energy, Government of India, under Project No. RTI4001, and of the Ashok and Gita Vaish Early Career Faculty Fellowship at the International Centre for Theoretical Sciences.
Funding AgencyGrant Number
Sherman Fairchild FoundationUNSPECIFIED
Pennsylvania State UniversityUNSPECIFIED
Department of Atomic Energy (India)RTI4001
International Centre for Theoretical SciencesUNSPECIFIED
Issue or Number:12
Record Number:CaltechAUTHORS:20230209-988069100.5
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:119172
Deposited By: Research Services Depository
Deposited On:15 Mar 2023 00:11
Last Modified:15 Mar 2023 00:11

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