Gravity theories beyond general relativity (GR) can change the properties of gravitational waves: their polarizations, dispersion, speed, and, importantly, e...
Black hole scalar charge from a topological horizon integral in Einstein-dilaton-Gauss-Bonnet gravity
In theories of gravity that include a scalar field, a compact object’s scalar charge is a crucial quantity since it controls dipole radiation, which can be s...
Modeling black holes’ kicks directly from numerical relativity
Finding the shape of extremal black holes in beyond-GR theories
Whenever you’ve got symmetry, you should use it!
One of the first numerical simulations of black hole mergers in beyond-GR effective field theories
Angular momentum is tricky to define in GR! Here’s an approach so that observers can all agree with each others’ measurements.
Invited review for CQG Focus Issue
Progress in understanding the structure of extremal black holes in Chern-Simons
Not all theories with long-ranged scalar fields produce dipole radiation in binaries
A generalization of symplectic integrators to non-conservative dynamics.
A major review on non-GR theories, black holes and neutron stars in non-GR theories, compact binaries in non-GR theories, and pulsar, gravitational-wave, and...
Extending Hamilton’s variational principle to nonconservative systems.
Explaining why universality emerges in compact objects.
Rapidly Rotating Black Holes in Dynamical Chern-Simons Gravity: Decoupling Limit Solutions and Breakdown
Numerical solutions for rapidly-rotating dCS black holes show where the weak-coupling expansion breaks down.
Short note simplifying a calculation in the literature.
Universal relations between the Newtonian multipole moments of rotating stars.
Connecting observables (pulsar binary pericenter precession and gravitational wave phase) to the parameters and structure of theoretical models.
Chern-Simons corrections to 1) internal structure (including mass shift) and 2) binary dynamics (including pericenter precession) of neutron stars.
The post-Newtonian calculation scheme applied to binary inspirals in a broad class of almost-GR theories.
Applying symplectic geometry to understand and refine Hamiltonian MC.
Parametrizing deviations from purely GR, vacuum black holes.
The deformation to spherically symmetric black holes under a class of corrections to general relativity.
Computing how much energy and momentum gravitational waves carry in a very broad class of almost-GR theories.
Turning an O(n^2) problem into an O(n log n) problem in radio interferometry, similar in spirit to how the fast Fourier transform operates.
Autonomous gravitational-wave searches—fully automated analyses of data that run without human intervention or assistance—are desirable for a number of re...
Coherent Network Analysis Technique for Discriminating Gravitational-wave Bursts From Instrumental Noise
How to overconstrain the problem of discriminating gravitational wave signals from detector noise and glitches.