Tootfinder

Imprints of Changing Mass and Spin on Black Hole Ringdown
Hengrui Zhu, Frans Pretorius, Sizheng Ma, Robert Owen, Yitian Chen, Nils Deppe, Lawrence E. Kidder, Maria Okounkova, Harald P. Pfeiffer, Mark A. Scheel, Leo C. Stein
https://arxiv.org/abs/2404.12424

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 waveform. We do so by comparing the dynamics of a perturbed black hole evolved with the full (nonlinear) versus linearized Einstein equations. As expected, we find that the quasinormal mode amplitudes extracted from nonlinear evolution deviate from their linear counterparts at third order in initial perturbation amplitude. For perturbations lea…

If I still had the attention span necessary to read long-form writing, something on my reading archive might be: more Robert Owen