Kerr Spherical Photon Orbits
Interactive tool for visualizing spherical/circular photon orbits in Kerr
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Nonlinearities in black hole ringdowns
The gravitational wave strain emitted by a perturbed black hole (BH) ringing down is typically modeled analytically using first-order BH perturbation the...
Fixing the BMS Frame of Numerical Relativity Waveforms with BMS Charges
The Bondi-van der Burg-Metzner-Sachs (BMS) group, which uniquely describes the symmetries of asymptotic infinity and therefore of the gravitational waves...
Gravitational-wave energy and other fluxes in ghost-free bigravity
One of the key ingredients for making binary waveform predictions in a beyond-GR theory of gravity is understanding the energy and angular momentum carri...
Tidally-induced nonlinear resonances in EMRIs with an analogue model
One of the important classes of targets for the future space-based gravitational wave observatory LISA is extreme mass ratio inspirals (EMRIs), where lon...
High Precision Ringdown Modeling: Multimode Fits and BMS Frames
Quasi-normal mode (QNM) modeling is an invaluable tool for characterizing remnant black holes, studying strong gravity, and testing general relativity. ...