Large Gravitational Wave Phase Shifts from Strong 3-body Interactions in Dense Stellar Clusters

Fuente: arXiv
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Autori principali: Hendriks, Kai, Atallah, Dany, Martinez, Miguel, Zevin, Michael, Zwick, Lorenz, Trani, Alessandro A., Saini, Pankaj, Takátsy, János, Samsing, Johan
Natura: Preprint
Pubblicazione: 2024
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author Hendriks, Kai
Atallah, Dany
Martinez, Miguel
Zevin, Michael
Zwick, Lorenz
Trani, Alessandro A.
Saini, Pankaj
Takátsy, János
Samsing, Johan
author_facet Hendriks, Kai
Atallah, Dany
Martinez, Miguel
Zevin, Michael
Zwick, Lorenz
Trani, Alessandro A.
Saini, Pankaj
Takátsy, János
Samsing, Johan
contents The phase evolution of gravitational waves (GWs) can be modulated by the astrophysical environment surrounding the source, which provides a probe for the origin of individual binary black holes (BBHs) using GWs alone. We here study the evolving phase of the GW waveform derived from a large set of simulations of BBH mergers forming in dense stellar clusters through binary-single interactions. We uncover that a well-defined fraction of the assembled eccentric GW sources will have a notable GW phase shift induced by the remaining third object. The magnitude of the GW phase shift often exceeds conservative analytical estimates due to strong 3-body interactions, which occasionally results in GW sources with clearly shifted and perturbed GW waveforms. This opens up promising opportunities for current and future GW detectors, as observing such a phase shift can identify the formation environment of a BBH, as well as help to characterise the local properties of its surrounding environment.
format Preprint
id arxiv_https___arxiv_org_abs_2411_08572
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Large Gravitational Wave Phase Shifts from Strong 3-body Interactions in Dense Stellar Clusters
Hendriks, Kai
Atallah, Dany
Martinez, Miguel
Zevin, Michael
Zwick, Lorenz
Trani, Alessandro A.
Saini, Pankaj
Takátsy, János
Samsing, Johan
High Energy Astrophysical Phenomena
The phase evolution of gravitational waves (GWs) can be modulated by the astrophysical environment surrounding the source, which provides a probe for the origin of individual binary black holes (BBHs) using GWs alone. We here study the evolving phase of the GW waveform derived from a large set of simulations of BBH mergers forming in dense stellar clusters through binary-single interactions. We uncover that a well-defined fraction of the assembled eccentric GW sources will have a notable GW phase shift induced by the remaining third object. The magnitude of the GW phase shift often exceeds conservative analytical estimates due to strong 3-body interactions, which occasionally results in GW sources with clearly shifted and perturbed GW waveforms. This opens up promising opportunities for current and future GW detectors, as observing such a phase shift can identify the formation environment of a BBH, as well as help to characterise the local properties of its surrounding environment.
title Large Gravitational Wave Phase Shifts from Strong 3-body Interactions in Dense Stellar Clusters
topic High Energy Astrophysical Phenomena
url https://arxiv.org/abs/2411.08572