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Bounding Alternative Theories of Gravity with Multi-Band GW Observations

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arxiv 1905.13460 v2 pith:BHNUTKHY submitted 2019-05-31 gr-qc

Giuseppe Gnocchi , Andrea Maselli , Tiziano Abdelsalhin , Nicola Giacobbo , Michela Mapelli This is my paper
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keywords gravitymulti-bandalternativeblackdetectorsdeviationsgeneralhole
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We study the constraints on alternative theories of gravity that can be determined by multi-band observations of gravitational wave signals emitted from binary black hole coalescences. We focus on three types of General Relativity modifications induced by a generalised Brans-Dicke theory, and two classes of quadratic gravity, Einstein-dilaton-Gauss-Bonnet and dynamical Chern-Simons. Considering a network of space and ground-based detectors, supplied by a population of spinning binaries black hole, we show how the multi-band analysis improves the existing bounds on the theory's parameters by several orders of magnitude, for both pre- and post-Newtonian deviations. Our results also show the fundamental role played by an interferometer in the frequency range between LISA and advanced detectors, in constraining possible deviations from General Relativity.

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Cited by 2 Pith papers

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

  1. Challenges in the nonlinear evolution of unequal mass binaries in sGB gravity

    gr-qc 2025-07 conditional novelty 6.0 of 10

    First full merger simulations of 2:1 and 3:1 black hole binaries in scalar-Gauss-Bonnet gravity, with weak-coupling dephasing matching PN predictions but strong-coupling results limited by initial-data transients.

  2. Constraining Lorentz and parity violations in gravity with multiband gravitational wave observations

    gr-qc 2026-01 conditional novelty 4.0 of 10

    Future multiband GW networks could tighten Lorentz- and parity-violation energy-scale bounds by up to several orders of magnitude, with massive binaries best for low-frequency and loud binaries for high-frequency effects.

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