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Binary black hole spectroscopy: A no-hair test of GW190814 and GW190412

Capano, C., & Nitz, A. H. (2020). Binary black hole spectroscopy: A no-hair test of GW190814 and GW190412. Physical Review D, 102(12): 124070. doi:10.1103/PhysRevD.102.124070.

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Genre: Journal Article

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### Creators

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Creators:
Capano, Collin1, Author
Nitz, Alexander H.1, Author
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
Abstract: Gravitational waves provide a window to probe general relativity (GR) under extreme conditions. The recent observations of GW190412 and GW190814 are unique high-mass-ratio mergers that enable the observation of gravitational-wave harmonics beyond the dominant $\ell = m = 2$ mode. Using these events, we search for physics beyond GR by allowing the source parameters measured from the sub-dominant harmonics to deviate from that of the dominant mode. All results are consistent with GR. We constrain the chirp mass as measured by the $\ell = m = 3$ mode to be within $0_{-4}^{+6}\%$ of the dominant mode when we allow both the masses and spins of the sub-dominant modes to deviate. If we allow only the mass parameters to deviate, we constrain the chirp mass of the $\ell = m = 3$ mode to be within $\pm1\%$ of the expected value from GR.

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Dates: 2020-08-052020
Publication Status: Published in print
Pages: 7 pages, 4 figures
Publishing info: -
Rev. Type: -
Identifiers: arXiv: 2008.02248
URI: http://arxiv.org/abs/2008.02248
DOI: 10.1103/PhysRevD.102.124070
Degree: -

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### Source 1

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Title: Physical Review D
Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 102 (12) Sequence Number: 124070 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258