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TEOBResumS: assessment of consistent next-to-quasicircular corrections and post-adiabatic approximation in multipolar binary black holes waveforms

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arxiv 2104.07533 v2 pith:2SPIOK5M submitted 2021-04-15 gr-qc

TEOBResumS: assessment of consistent next-to-quasicircular corrections and post-adiabatic approximation in multipolar binary black holes waveforms

Gunnar Riemenschneider , Piero Rettegno , Matteo Breschi , Angelica Albertini , Rossella Gamba , Sebastiano Bernuzzi , Alessandro Nagar This is my paper
classification gr-qc
keywords post-adiabaticwaveformachievebelowblackconsistentcorrectionsestimation
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The use of effective-one-body (EOB) waveforms for black hole binaries analysis in gravitational-wave astronomy requires faithful models and fast generation times. A key aspect to achieve faithfulness is the inclusion of numerical-relativity (NR) informed next-to-quasicircular corrections(NQC), dependent on the radial momentum, to the waveform and radiation reaction. A robust method to speed up the waveform generation is the post-adiabatic iteration to approximate the solution of the EOB Hamiltonian equations. In this work, we assess the performances of a fast NQC prescription in combination to the post-adiabatic method for generating multipolar gravitational waves. The outlined approach allows a consistent treatment of NQC in both the waveform and the radiation-reaction, does not require iterative procedures to achieve high faithfulness, and can be efficiently employed for parameter estimation. Comparing to 611 NR simulations, for total mass $10M_\odot\leq M \leq 200M_\odot$ and using the Advanded LIGO noise, the model has EOB/NR unfaithfulness well below $0.01$, with 78.5\% of the cases below $0.001$. We apply the model to the parameter estimation of GW150914 exploring the impact of the new NQC and of the higher modes up to $\ell=m=8$.

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Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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    gr-qc 2026-05 unverdicted novelty 7.0

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  4. Efficient Eccentric Effective-One-Body Dynamics via Near-Identity Averaging Transformations

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