36 citations · 57 across the 8 of their papers we have counts for
9 papers
Breakdown of hydrodynamic universality in causal first-order viscous neutron star oscillations
Lennox S. Keeble, Alejandro Cárdenas-Avendaño
Hydrodynamic modeling of viscous neutron stars requires a choice of theory of relativistic hydrodynamics. That distinct formulations contain the same physical content in the long-w…
Quadratic Gravitational-Wave Scattering by Kerr Black Holes
Lennox S. Keeble, Hengrui Zhu, Lawrence E. Kidder +2
Second-order black-hole perturbation theory will be an important component of precision gravitational-wave modeling and tests of strong-field gravity with next-generation detectors…
A Systematic Study of Resonance-Driven Flux Modifications in Extreme-Mass-Ratio Inspirals
Edoardo Levati, Lennox S. Keeble, Alejandro Cárdenas-Avendaño
Transient orbital resonances can introduce phase-dependent corrections to the evolution of extreme-mass-ratio inspirals (EMRIs), potentially altering their long-term dynamics and e…
Radial Oscillations of Viscous Stars
Lennox S. Keeble, Jaime Redondo-Yuste
Oscillation modes of neutron stars, a key target for third-generation gravitational wave detectors, encode key information about their constituent nuclear matter. In this work, we…
First-Order Viscous Relativistic Hydrodynamics on the Two-Sphere
Lennox S. Keeble, Frans Pretorius
A few years ago, Bemfica, Disconzi, Noronha, and Kovtun (BDNK) formulated the first causal, stable, strongly hyperbolic, and locally well-posed theory of first-order viscous relati…
Estimating High-Order Time Derivatives of Kerr Orbital Functionals
Lennox S. Keeble, Alejandro Cárdenas-Avendaño
Functions of bound Kerr geodesic motion play a central role in many calculations in relativistic astrophysics, ranging from gravitational-wave generation to self-force and radiatio…
Inferring Black Hole Spin from Interferometric Measurements of the First Photon Ring: A Geometric Approach
Lennox S. Keeble, Alejandro Cárdenas-Avendaño, Daniel C. M. Palumbo
Accurately inferring black hole spin is crucial for understanding black hole dynamics and their astrophysical environments. In this work, we outline a geometric method for spin est…
The Black Hole Explorer: Photon Ring Science, Detection and Shape Measurement
Alexandru Lupsasca, Alejandro Cárdenas-Avendaño, Daniel C. M. Palumbo +6
General relativity predicts that black hole images ought to display a bright, thin (and as-of-yet-unresolved) ring. This "photon ring" is produced by photons that explore the stron…
Assessing the impact of instrument noise and astrophysical fluctuations on measurements of the first black hole photon ring
Alejandro Cárdenas-Avendaño, Lennox Keeble, Alexandru Lupsasca
Currently envisioned extensions of the Event Horizon Telescope to space will soon target the black hole photon ring: a narrow ring-shaped imprint of a black hole's strong gravity p…