The Quasinormal Modes of Quasinormal Modes

Abstract

Modifying black hole horizon can drastically change the spectrum of quasinormal modes. But if the modification is close enough to the horizon the ringdown signal remains almost unaltered, and well described by the quasinormal modes of the original GR solution. I show how the original quasinormal modes emerge in the sum over the new modes.

JCAP version. 3 pages

References in corpus (5)

• Can environmental effects spoil precision gravitational-wave astrophysics?
• Echoes of ECOs: gravitational-wave signatures of exotic compact objects and of quantum corrections at the horizon scale
• Echoes of Kerr-like wormholes
• A recipe for echoes from exotic compact objects
• Echoes of compact objects: new physics near the surface and matter at a distance

Cited by in corpus (9)

• Echoes in brane worlds: ringing at a black hole--wormhole transition
• Topical Review: Greybody Factors and Quasinormal Modes for Black Holes in Various Theories -- Fingerprints of Invisibles
• Ringdown stability: greybody factors as stable gravitational-wave observables
• Quasinormal modes, echoes and the causal structure of the Green's function
• Quasinormal modes of charged fermions in linear dilaton black hole spacetime: Exact frequencies
• An analytic approach to quasinormal modes for coupled linear systems
• Spectral instability of horizonless compact objects within astrophysical environments
• Quasinormal frequencies of a two-dimensional asymptotically anti-de Sitter black hole of the dilaton gravity theory
• Excitation factors for horizonless compact objects: long-lived modes, echoes, and greybody factors