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Time domain phenomenological model of gravitational wave subdominant harmonics for quasi-circular non-precessing binary black hole coalescences

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arxiv 2012.11923 v1 pith:I7MNRRCG submitted 2020-12-22 gr-qc

Time domain phenomenological model of gravitational wave subdominant harmonics for quasi-circular non-precessing binary black hole coalescences

H\'ector Estell\'es , Sascha Husa , Marta Colleoni , David Keitel , Maite Mateu-Lucena , Cecilio Garc\'ia-Quir\'os , Antoni Ramos-Buades , Angela Borchers This is my paper
classification gr-qc
keywords modeldomaingravitationalharmonicsmodephenomenologicalwavebinary
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

In this work we present an extension of the time domain phenomenological model IMRPhenomT for gravitational wave signals from binary black hole coalescences to include subdominant harmonics, specifically the $(l=2, m=\pm 1)$, $(l=3, m=\pm 3)$, $(l=4, m=\pm 4)$ and $(l=5, m=\pm 5)$ spherical harmonics. We also improve our model for the dominant $(l=2, m=\pm 2)$ mode and discuss mode mixing for the $(l=3, m=\pm 2)$ mode. The model is calibrated to numerical relativity solutions of the full Einstein equations up to mass ratio 18, and to numerical solutions of the Teukolsky equations for higher mass ratios. This work complements the latest generation of traditional frequency domain phenomenological models (IMRPhenomX), and provides new avenues to develop computationally efficient models for gravitational wave signals from generic compact binaries.

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Cited by 10 Pith papers

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