Kerr Spherical Photon Orbits
Interactive tool for visualizing spherical/circular photon orbits in Kerr
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Imprints of Changing Mass and Spin on Black Hole Ringdown
We numerically investigate the imprints of gravitational radiation-reaction driven changes to a black hole’s mass and spin on the corresponding ringdown ...
Can a radiation gauge be horizon-locking?
In this short Note, I answer the titular question: Yes, a radiation gauge can be horizon-locking. Radiation gauges are very common in black hole perturbat...
Optimizing post-Newtonian parameters and fixing the BMS frame for numerical-relativity waveform hybridizations
Numerical relativity (NR) simulations of binary black holes provide precise waveforms, but are typically too computationally expensive to produce wavefor...
Notes: Magnetostatic multipole expansion using STF tensors
How to do the STF multipole expansion of the magnetic potential and field (it’s been on my TODO list for a while)
Numerical relativity surrogate model with memory effects and post-Newtonian hybridization
Numerical relativity simulations provide the most precise templates for the gravitational waves produced by binary black hole mergers. However, many of t...