The location of the last stable orbit in Kerr spacetime
The dividing line between bound and plunging orbits is an algebraic variety
Publications
In online databases:
arXiv,
ADS,
ORCiD,
Google Scholar,
and
INSPIRE.
I also curate all my publications below for some attempt at
consistency.
#2019
Numerical relativity simulation of GW150914 beyond general relativity
The first astrophysically-relevant numerical simulation of merging black holes in a higher-curvature theory beyond GR.
qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
qnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coeff...
Numerical binary black hole collisions in dynamical Chern-Simons gravity
The first numerical beyond-GR binary black hole merger simulation.
Surrogate models for precessing binary black hole simulations with unequal masses
A surrogate model extending the parameter space range of fully precessing quasicircular inspirals
The SXS Collaboration catalog of binary black hole simulations
Accurate models of gravitational waves from merging black holes are necessary for detectors to observe as many events as possible while extracting the maximu...
#2018
The binary black hole explorer: on-the-fly visualizations of precessing binary black holes
Real-time interactive visualizations of merging black holes in seconds!
High-accuracy mass, spin, and recoil predictions of generic black-hole merger remnants
Modeling black holes remnants directly from numerical relativity
Measuring stochastic gravitational-wave energy beyond general relativity
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...
Black-hole kicks from numerical-relativity surrogate models
Modeling black holes’ kicks directly from numerical relativity
Deformation of extremal black holes from stringy interactions
Finding the shape of extremal black holes in beyond-GR theories
#2017
Separating metric perturbations in near-horizon extremal Kerr spacetimes
Whenever you’ve got symmetry, you should use it!
Numerical binary black hole mergers in dynamical Chern-Simons: I. Scalar field
One of the first numerical simulations of black hole mergers in beyond-GR effective field theories
#2016
Prescriptions for Measuring and Transporting Local Angular Momenta in General Relativity
Angular momentum is tricky to define in GR! Here’s an approach so that observers can all agree with each others’ measurements.
Black Hole Based Tests of General Relativity
Invited review for CQG Focus Issue
#2015
Extremal Black Holes in Dynamical Chern-Simons Gravity
Progress in understanding the structure of extremal black holes in Chern-Simons
Challenging the Presence of Scalar Charge and Dipolar Radiation in Binary Pulsars
Not all theories with long-ranged scalar fields produce dipole radiation in binaries
“Slimplectic” Integrators: Variational Integrators for General Nonconservative Systems
A generalization of symplectic integrators to non-conservative dynamics.
Testing General Relativity With Present and Future Astrophysical Observations
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...
#2014
The Principle of Stationary Nonconservative Action for Classical Mechanics and Field Theories
Extending Hamilton’s variational principle to nonconservative systems.
Why I-Love-Q: Explaining why universality emerges in compact objects
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.
Note on Legendre Decomposition of the Pontryagin Density in Kerr
Short note simplifying a calculation in the literature.
Three-Hair Newtonian Relations for Rotating Stars
Universal relations between the Newtonian multipole moments of rotating stars.
Parametrizing and Constraining Scalar Corrections to General Relativity
Connecting observables (pulsar binary pericenter precession and gravitational wave phase) to the parameters and structure of theoretical models.
#2013
Isolated and Binary Neutron Stars in Dynamical Chern-Simons Gravity
Chern-Simons corrections to 1) internal structure (including mass shift) and 2) binary dynamics (including pericenter precession) of neutron stars.
#2012
Probes of Strong-field Gravity (PhD Thesis) External link
MIT PhD thesis of Leo C. Stein
Post-Newtonian, Quasicircular Binary Inspirals in Quadratic Modified Gravity
The post-Newtonian calculation scheme applied to binary inspirals in a broad class of almost-GR theories.
#2011
The Geometry of Hamiltonian Monte Carlo
Applying symplectic geometry to understand and refine Hamiltonian MC.
Bumpy Black Holes in Alternative Theories of Gravity
Parametrizing deviations from purely GR, vacuum black holes.
Nonspinning Black Holes in Alternative Theories of Gravity
The deformation to spherically symmetric black holes under a class of corrections to general relativity.
Effective Gravitational Wave Stress-energy Tensor in Alternative Theories of Gravity
Computing how much energy and momentum gravitational waves carry in a very broad class of almost-GR theories.
Solving the Corner-turning Problem for Large Interferometers
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.
#2010
X-Pipeline: An Analysis Package for Autonomous Gravitational-wave Burst Searches
Autonomous gravitational-wave searches—fully automated analyses of data that run without human intervention or assistance—are desirable for a number of re...
#2006
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.