Dipolar tidal effects in scalar-tensor theories
| Autor: | Laura Bernard |
|---|---|
| Přispěvatelé: | Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
moment: dipole
General relativity scalar tensor Scalar (mathematics) FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences General Relativity and Quantum Cosmology Gravitation 0103 physical sciences conservation law general relativity 010306 general physics Astrophysics::Galaxy Astrophysics orbit Physics Conservation law LISA Einstein Telescope 010308 nuclear & particles physics Gravitational wave finite size: effect higher-order: 0 gravitational radiation gravitational radiation detector Massless particle Dipole Classical mechanics gravitational radiation: emission [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc] time dependence Astrophysics::Earth and Planetary Astrophysics |
| Zdroj: | Phys.Rev.D Phys.Rev.D, 2020, 101 (2), pp.021501. ⟨10.1103/PhysRevD.101.021501⟩ Physical Review D Physical Review D, American Physical Society, 2020, 101 (2), pp.021501. ⟨10.1103/PhysRevD.101.021501⟩ |
| ISSN: | 1550-7998 1550-2368 |
| DOI: | 10.1103/PhysRevD.101.021501⟩ |
| Popis: | 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. Comment: 6 pages, v2: typos + errors in Eqs. (7), (8), (13)-(17) corrected |
| Databáze: | OpenAIRE |
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