1 citations · 2 across the 5 of their papers we have counts for
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Exceptional points of the Schwarzschild spectrum under local potential perturbation: The Princess and the Pea
Mohamed Ould El Hadj, Sam R. Dolan
Black-hole quasinormal modes (QNMs) may coalesce at exceptional points (EPs) in the frequency spectrum. We study EPs and their phenomenology for gravitational perturbations of a Sc…
Ringdown and echoes from compact objects: Debye series and Debye quasinormal modes
Mohamed Ould El Hadj, Sam R. Dolan
We introduce a new series decomposition of the waveform constructed in the spirit of Debye expansions in scattering theory, and we use this to analyse the time-domain response of c…
Environmental effects in extreme mass ratio inspirals: perturbations to the environment in Kerr
Conor Dyson, Thomas F. M. Spieksma, Richard Brito +2
Future gravitational wave observatories open a unique avenue to study the environments surrounding black holes. Intermediate or extreme mass ratio inspirals will spend thousands to…
Self-force and the Schwarzschild star
Abhinove N. Seenivasan, Sam R. Dolan
We consider the self-force acting on a pointlike (electromagnetic or conformal-scalar) charge held fixed on a spacetime with a spherically-symmetric mass distribution of constant d…
Sourced metric perturbations of Kerr spacetime in Lorenz gauge
Barry Wardell, Chris Kavanagh, Sam R. Dolan
We derive a formalism for solving the Lorenz gauge equations for metric perturbations of Kerr spacetime sourced by an arbitrary stress-energy tensor. The metric perturbation is obt…
Adiabatic inspirals under electromagnetic radiation reaction on Kerr spacetime
Ethan J German, Kevin Cunningham, Visakan Balakumar +2
A compact body in orbit about a black hole loses orbital energy and angular momentum through radiation-reaction processes, inspiralling towards the black hole until a final plunge.…