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Detecting massive scalar fields with Extreme Mass-Ratio Inspirals

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arxiv 2212.03888 v1 pith:Q4BCCO6W submitted 2022-12-07 gr-qc astro-ph.HEhep-ph

Susanna Barsanti , Andrea Maselli , Thomas P. Sotiriou , Leonardo Gualtieri This is my paper · ORCID
classification gr-qcastro-ph.HEhep-ph
keywords scalarmassextremefieldsinspiralsparametersratioable
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We study the imprint of light scalar fields on gravitational waves from extreme mass ratio inspirals -- binary systems with a very large mass asymmetry. We first show that, to leading order in the mass ratio, any effects of the scalar on the waveform are captured fully by two parameters: the mass of the scalar and the scalar charge of the secondary compact object. We then use this theory-agnostic framework to show that the future observations by LISA will be able to simultaneously measure both of these parameters with enough accuracy to detect ultra-light scalars.

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Forward citations

Cited by 5 Pith papers

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

  1. The significance of first post-adiabatic contributions for scalar charge measurements with intermediate and extreme mass ratio inspirals

    gr-qc 2026-07 accept novelty 6.5 of 10

    Neglecting 1PA gravitational self-force biases intrinsic EMRI parameters while scalar-charge inference remains robust; pure-GR templates produce large biases and underestimated errors on charged signals.

  2. Spacetime of rotating black holes surrounded by massive scalar charges

    gr-qc 2026-02 conditional novelty 6.0 of 10

    Spectral methods construct leading-order spinning black-hole spacetimes with massive scalar hair for spin a≤0.8 and scalar mass µ≤0.2/M.

  3. Supermassive black hole scalarization and effective field theory

    gr-qc 2025-06 accept novelty 6.0 of 10

    A canonical two-scalar EFT cannot naturally produce supermassive-only black hole scalarization, because the generated G^2 term has the wrong sign and is suppressed.

  4. Sequential simulation-based inference for extreme mass ratio inspirals

    gr-qc 2025-05 conditional novelty 6.0 of 10

    Sequential simulation-based inference with truncated marginal neural ratio estimation shrinks the 11-parameter search volume for simulated non-spinning extreme-mass-ratio inspirals by factors of 1e6 to 1e7 and recover...

  5. Science of the LISA mission: A Summary for the European Strategy for Particle Physics

    gr-qc 2025-07 unverdicted novelty 1.0 of 10

    Four LISA science objectives are summarized for the European particle physics strategy, covering gravity tests, standard sirens, and TeV-scale stochastic gravitational wave backgrounds.

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