Kerr Spherical Photon Orbits
Interactive tool for visualizing spherical/circular photon orbits in Kerr
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A fixed point for black hole distributions
Merger dynamics create an attractive fixed-point in the space of distributions
qnm talk (and notebook) at the BHPToolkit spring 2020 workshop
Last week I gave an invited talk at the Spring 2020 workshop of the Black Hole Perturbation Toolkit (BHPToolkit). The BHPToolkit is a collection of open sou...
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.
Notes: Generalized harmonic form of Einstein’s equations from a gauge-fixed action
The generalized harmonic formulation can be derived by adding a gauge-fixing term to the Einstein-Hilbert action
Poincaré section clicker for the double pendulum
Interactive toy for understanding Poincaré sections and chaos