Kerr Spherical Photon Orbits
Interactive tool for visualizing spherical/circular photon orbits in Kerr
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NRSur7dq4v2: A multi-domain precessing surrogate model with improved accuracy
Numerical relativity simulations provide the most accurate waveforms for binary black hole coalescences, but are prohibitively expensive for direct use i...
Two more PhDs defended
Congratulations to Aniket Khairnar and Subhayu Bagchi on defending their PhDs! We had a double-header defense day, with Aniket in the morning and Subhayu in ...
Convergence of post-Newtonian for quasi-circular non-precessing comparable mass ratios BBHs
Post-Newtonian (PN) theory provides the analytic foundation for modeling the early inspiral of binary black holes. However, as an asymptotic series, succ...
Merger remnant and eccentricity dynamics surrogates for eccentric nonspinning black hole binaries
Accurate models of merger remnants are increasingly important for gravitational-wave science, including precision tests of gravity with ringdown, inferen...
Notes: Near-identity transformations to split fast and slow motion
The name near-identity transformation (NIT) is just shorthand for a specific application of perturbation theory—one which is particularly useful in dynamical...