activity
20242026
collaborators

13 papers

gr-qc2026

Merger remnant and eccentricity dynamics surrogates for eccentric nonspinning black hole binaries

Adhrit Ravichandran, Peter James Nee, Keefe Mitman +22

Accurate models of merger remnants are increasingly important for gravitational-wave science, including precision tests of gravity with ringdown, inference of black-hole population…

gr-qc2026

Convergence of post-Newtonian for quasi-circular non-precessing comparable mass ratios BBHs

Dongze Sun, Béatrice Bonga, Leo C. Stein +1

Post-Newtonian (PN) theory provides the analytic foundation for modeling the early inspiral of binary black holes. However, as an asymptotic series, successive PN orders do not nec…

gr-qc2026

Fixing the center-of-mass frame of numerical relativity waveforms using the post-Newtonian center-of-mass charge

Aniket Khairnar, Leo C. Stein, Michael Boyle +7

The Bondi--van der Burg--Metzner--Sachs (BMS) frame of gravitational waves produced by numerical relativity (NR) simulations is crucial for building accurate waveform models. A pro…

gr-qc2026

Chaos and fractals of the black hole photon ring

Roman Berens, Peter Galison, Trevor Gravely +2

The photon ring of a Kerr black hole decomposes into a self-similar hierarchy of subrings. Here, we show that this self-similar structure persists in phase space. Moreover, near th…

gr-qc2025

Parameter matching between horizon quasi-local and point-particle definitions at 1PN for quasi-circular and non spinning BBH systems in harmonic gauge

Dongze Sun, Leo C. Stein

We investigate how commonly used parameter definitions in Post-Newtonian (PN) theory compare with those from Numerical Relativity (NR) for binary black hole (BBH) systems. In NR, m…

gr-qc2025

Black hole spectroscopy: from theory to experiment

Emanuele Berti, Vitor Cardoso, Gregorio Carullo +70

The "ringdown" radiation emitted by oscillating black holes has great scientific potential. By carefully predicting the frequencies and amplitudes of black hole quasinormal modes a…