Modeling and detecting resonant tides of exotic compact objects
| Autor: | G. Koekoek, Rob Tielemans, Bert Vercnocke, Kwinten Fransen |
|---|---|
| Přispěvatelé: | RS: FSE MSP, Grav. waves and fundamental physics, RS: FSE Grav. waves and fundamental physics |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
High Energy Physics - Theory
General relativity Event horizon Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Astrophysics Compact star 01 natural sciences General Relativity and Quantum Cosmology 0103 physical sciences EXCITATION Quasinormal mode OSCILLATIONS 010306 general physics BLACK-HOLES EQUATIONS Physics Einstein Telescope 010308 nuclear & particles physics Gravitational wave PERTURBATIONS Black hole Neutron star High Energy Physics - Theory (hep-th) RADIATION |
| Zdroj: | Physical Review D, 104(4):044044. American Physical Society |
| ISSN: | 2470-0029 1550-7998 |
| DOI: | 10.1103/PhysRevD.104.044044 |
| Popis: | The event horizon of a black hole in general relativity absorbs all infalling radiation. Any observation of the contrary would immediately challenge the expectation that astrophysical black holes are described by the vacuum Kerr geometry. If a putative black hole does reflect part of the ingoing radiation, its quasinormal mode structure is drastically altered. Low frequency modes can be introduced that are resonantly excited during the inspiral of a binary system. We study the resulting phase shift of the gravitational wave signal. Building on neutron star results, we obtain a model-independent expression for the phase shift that depends only on quasinormal modes and Love numbers of the compact object. We find that the phase shift might be detectable with Einstein Telescope for asymmetric binaries in high signal-to-noise events ($\sim 10^3$), but by far cannot explore the Planck scale. 23 pages, 3 figures. Fixed error, modified detection prospects |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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