Gravitational-wave data analysis with high-precision numerical relativity simulations of boson star mergers

Evstafyeva, Tamara, Sperhake, Ulrich, Romero-Shaw, Isobel and Agathos, Michalis 2024. Gravitational-wave data analysis with high-precision numerical relativity simulations of boson star mergers. Physical Review Letters 133 , 131401. 10.1103/PhysRevLett.133.131401

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Abstract

Gravitational-wave signals detected to date are commonly interpreted under the paradigm that they originate from pairs of black holes or neutron stars. Here, we explore the alternative scenario of boson-star signals being present in the data stream. We perform accurate and long ( ∼20 orbits) numerical simulations of boson-star binaries and inject the resulting strain into LIGO noise. Our Bayesian inference reveals that some boson-star signals are degenerate with current approximants, albeit with biased parameters, while others exhibit smoking-gun signatures leaving behind conspicuous residuals.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Publisher:	American Physical Society
ISSN:	0031-9007
Date of First Compliant Deposit:	19 February 2026
Date of Acceptance:	23 July 2024
Last Modified:	19 Feb 2026 15:13
URI:	https://orca.cardiff.ac.uk/id/eprint/185027

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