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Dipolar tidal effects in scalar-tensor theories

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arxiv 1906.10735 v2 pith:2T26RSCH submitted 2019-06-25 gr-qc

Laura Bernard This is my paper · ORCID
classification gr-qc
keywords tidaleffectsdipolargenerationscalar-tensortheoriesaddressallows
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The inclusion of finite-size effects in the gravitational waveform templates allows not only to constrain the internal structure of compact objects, but to test deviations from general relativity. Here, we address the problem of tidal effects in massless scalar-tensor theories. We introduce a new class of scalar-type tidal Love numbers due to the presence of a time-varying scalar dipole moment. We compute the leading-order tidal contribution in the conservative dynamics and for the first time in the wave generation for quasi-circular orbits. Importantly, we show that in a system dominated by dipolar emission, such tidal effects may be detectable by LISA or third generation detectors.

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Cited by 4 Pith papers

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

  1. Tidal Love Numbers of Neutron Stars in Horndeski Theories

    gr-qc 2025-01 accept novelty 7.0 of 10

    In scalar-tensor theories, the 1/r^3 term used to extract neutron star tidal Love numbers contains a Love-number-independent contamination, computed here for minimally coupled and DEF scalar fields.

  2. Tidal contributions to the full gravitational waveform to the second-and-a-half post-Newtonian order

    gr-qc 2024-12 conditional novelty 7.0 of 10

    Tidal contributions to all gravitational waveform amplitude modes up to l=7 are derived to 2.5PN for quasi-circular non-spinning compact binaries, with flux and phasing provided at the same order.

  3. Tail effects of self-interacting scalar fields

    gr-qc 2024-12 conditional novelty 6.0 of 10

    Quartic scalar self-interactions produce a logarithmically running correction to the two-body force, constrain the self-coupling via solar system tests, and generate multipole-coupling tail interactions that advance t...

  4. Tidal effects in gravitational waves from neutron stars in scalar-tensor theories of gravity

    gr-qc 2024-12 conditional novelty 6.0 of 10

    Tidal contributions to neutron-star binary gravitational-wave phase in scalar-tensor gravity involve scalar, tensor, and mixed Love numbers, and generally combine to reduce the net tidal signal below the general-relat...

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