Journal
PHYSICAL REVIEW D
Volume 95, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.95.044016
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Funding
- European Union [MaGRaTh-646597, 690904]
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Economic Development and Innovation
- ERC [MaGRaTh-646597]
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Ultralight degrees of freedom coupled to matter lead to resonances, which can be excited when the Compton wavelength of the field equals a dynamical scale in the problem. For binaries composed of a star orbiting a supermassive black hole, these resonances lead to a smoking-gun effect: a periastron distance which stalls, even in the presence of gravitational-wave dissipation. This effect, also called a floating orbit, occurs for generic equatorial but eccentric orbits, and we argue that finite-size effects are not enough to suppress it.
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