Dynamical neutron star tides: the signature of a mode resonance
Dynamical neutron star tides: the signature of a mode resonance
Motivated by future opportunities in gravitational-wave astronomy and the ongoing effort to constrain physics under extreme conditions, we consider the signature of individual mode resonances excited during the inspiral of binary systems involving neutron stars. Specifically, we quantify how each resonant mode contributes to the effective (frequency-dependent) tidal deformability. The resonant solution is shown to be accurately represented by a new closed-form approximation, which sheds light on the involved phenomenology, and which should be useful for the development of precise waveform models and future parameter extraction efforts.
asteroseismology, binaries: general, dense matter, equation of state, gravitational waves, stars: neutron
1375-1387
Pnigouras, Pantelis
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Andersson, Nils
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Gittins, Fabian
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Counsell, A.R.
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8 August 2025
Pnigouras, Pantelis
e7fc1316-2ac6-4f1a-8d7e-5b76e442e2bf
Andersson, Nils
2dd6d1ee-cefd-478a-b1ac-e6feedafe304
Gittins, Fabian
657ec875-fac3-4606-9dcd-591ef22fc9f6
Counsell, A.R.
e0cdfe0d-2b4f-4f14-bf1c-9a638440c937
Pnigouras, Pantelis, Andersson, Nils, Gittins, Fabian and Counsell, A.R.
(2025)
Dynamical neutron star tides: the signature of a mode resonance.
MNRAS, Volume, 542 (2), .
(doi:10.1093/mnras/staf1285).
Abstract
Motivated by future opportunities in gravitational-wave astronomy and the ongoing effort to constrain physics under extreme conditions, we consider the signature of individual mode resonances excited during the inspiral of binary systems involving neutron stars. Specifically, we quantify how each resonant mode contributes to the effective (frequency-dependent) tidal deformability. The resonant solution is shown to be accurately represented by a new closed-form approximation, which sheds light on the involved phenomenology, and which should be useful for the development of precise waveform models and future parameter extraction efforts.
Text
staf1285
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Accepted/In Press date: 28 July 2025
Published date: 8 August 2025
Keywords:
asteroseismology, binaries: general, dense matter, equation of state, gravitational waves, stars: neutron
Identifiers
Local EPrints ID: 505976
URI: http://eprints.soton.ac.uk/id/eprint/505976
ISSN: 1365-2966
PURE UUID: b9034bdd-1d69-480b-b941-534ac355839c
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Date deposited: 24 Oct 2025 16:50
Last modified: 05 Dec 2025 02:59
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Contributors
Author:
Pantelis Pnigouras
Author:
Fabian Gittins
Author:
A.R. Counsell
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