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Bounds on tidal charges from gravitational-wave ringdown observations

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arxiv 2311.03556 v2 pith:FITWEDUF submitted 2023-11-06 gr-qc astro-ph.HE

Akash K Mishra , Gregorio Carullo , Sumanta Chakraborty This is my paper · ORCID
classification gr-qcastro-ph.HE
keywords blackholetidalanalysisbinarychargechargesringdown
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Black hole solutions in the braneworld scenario are predicted to possess a tidal charge parameter, leaving imprints in the quasinormal spectrum. We conduct an extensive computation of such spectrum, and use it to construct a waveform model for the ringdown relaxation regime of binary black hole mergers observed by LIGO and Virgo. Applying a Bayesian time-domain analysis formalism, we analyse a selected dataset from the GWTC-3 LIGO-Virgo-Kagra catalog of binary coalescences, bounding the value of the tidal charge. With our analysis we obtain the first robust constraints on such charges, highlighting the importance of accounting for the previously ignored correlations with the other black hole intrinsic parameters.

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Cited by 2 Pith papers

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

  1. Tidal Love numbers and quasi-normal modes of the Schwarzschild-Hernquist black hole

    gr-qc 2024-12 conditional novelty 6.0 of 10

    For a Schwarzschild black hole in a relativistic Hernquist dark matter halo, quasinormal-mode frequency shifts scale as (MDM/rs)^(3/2) rather than linearly, while tidal Love numbers are small and sensitive to the choi...

  2. Black Hole Spectroscopy with Conditional Variational Autoencoder

    gr-qc 2025-06 conditional novelty 5.0 of 10

    A CVAE trained on simulated ringdown waveforms produces posterior estimates of remnant black hole parameters that match Bayesian inference, including overtones and a braneworld tidal charge parameter.

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