Ultralight scalars and resonances in black-hole physics
Research output: Contribution to journal › Journal article › Research › peer-review
Documents
- PhysRevD.95.044016
Final published version, 401 KB, PDF document
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.
Original language | English |
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Article number | 044016 |
Journal | Physical Review D |
Volume | 95 |
Issue number | 4 |
Number of pages | 11 |
ISSN | 2470-0010 |
DOIs | |
Publication status | Published - 15 Feb 2017 |
Externally published | Yes |
- POST-NEWTONIAN EXPANSION, BRANS-DICKE THEORY, GRAVITATIONAL-WAVES, SPINNING PARTICLE, KERR SPACETIME, NONSPHERICAL INFALL, ADIABATIC EVOLUTION, INCLINED ORBITS, RADIATION, MOTION
Research areas
ID: 299402864