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Gravitational-Wave Data Analysis with High-Precision Numerical Relativity Simulations of Boson Star mergers

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arxiv 2406.02715 v2 pith:BG4JLP2Z submitted 2024-06-04 gr-qc

Tamara Evstafyeva , Ulrich Sperhake , Isobel Romero-Shaw , Michalis Agathos This is my paper · ORCID
classification gr-qc
keywords boson-starsignalsdatagravitational-wavenumericalsimulationsaccuratealbeit
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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 ($\sim 20$ 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.

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Cited by 7 Pith papers

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

  1. Boson Stars in $D \ge 4$ Dimensions: Stability, Oscillation Frequencies, and Dynamical Evolutions

    gr-qc 2025-10 conditional novelty 9.0 of 10

    Self-interacting boson stars in D=5,6 and solitonic boson stars in D=5 can be radially stable, as shown by generalized pulsation equations and nonlinear spherical evolutions.

  2. Establishing Compactness as a Population Observable in Gravitational-Wave Astronomy

    gr-qc 2026-06 unverdicted novelty 6.0 of 10

    Hierarchical analysis of GWTC-3 yields C_eff = 0.5^{+0.3}_{-0.1} consistent with black holes and limits low-compactness exotic binary merger rate to <0.7 Gpc^{-3} yr^{-1}.

  3. Compactness Inference in Gravitational-Wave Mergers with PhenomDECO: Catalog Benchmarks and Robustness Diagnostics

    gr-qc 2026-06 unverdicted novelty 6.0 of 10

    PhenomDECO analysis of GWTC-3 events finds all considered signals consistent with binary black holes once low-frequency noise effects are addressed via higher starting frequencies.

  4. Massive boson stars: Stability and GW emission in head-on mergers

    gr-qc 2025-12 unverdicted novelty 6.0 of 10

    Quartically self-interacting massive boson stars are stable only up to the first mass maximum; their head-on mergers yield a boson-star remnant, a black hole at contact, or two black holes formed before contact, with ...

  5. Boson Stars in Bumblebee Gravity and Their Gravitational Waveforms from Extreme-Mass-Ratio Inspirals

    gr-qc 2025-12 conditional novelty 5.0 of 10

    In bumblebee gravity, the Lorentz-violating parameter ℓ makes mini-boson stars more compact for positive ℓ and produces LISA-detectable, sustained EMRI waveforms for penetrating orbits.

  6. Inferring additional physics through unmodelled signal reconstructions

    gr-qc 2024-12 conditional novelty 5.0 of 10

    A cWB overlap mismatch metric, Δmedian, separates simulated 40 solar mass black hole mergers with e20 ≳ 0.17 from circular ones even when parameter estimation uses only quasicircular waveforms.

  7. The Era of Precision in Computational Models of Gravitational Waves

    gr-qc 2026-07 accept novelty 2.0 of 10

    Numerical relativity solved the general-relativistic two-body problem in the mid-2000s, supplying the waveform models that enabled LIGO's first gravitational-wave detections.

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