1.5k citations · 6.4k across the 52 of their papers we have counts for
52 papers
Jet variability in small mass ratio supermassive black hole binaries
Jay V. Kalinani, Manuela Campanelli, Michail Chabanov +4
We present three-dimensional general relativistic magnetohydrodynamic simulations of a precessing supermassive black hole binary with mass ratio q=1/7, embedded in a circumbinary d…
Charged black holes embedded in matter with anisotropic pressure: Horizon Structure and Quasinormal Mode Spectra
D. N. Garzon, Jiayi Zhang, Elena Kopteva +1
In realistic settings, black holes are expected to be embedded in astrophysical environments. These environments, including possible dark matter distributions, can modify observabl…
Kerr black holes with vector dark matter hair
Fredric Hancock, Helvi Witek
We consider a massive vector-field perturbation on a Kerr black hole background. We fix the field's density at the edge of the black hole sphere of influence to model a bath of wav…
Scalarization and descalarization in hyperbolic encounters of black holes
Frederick C. L. Pardoe, Helvi Witek
We use numerical relativity to study the scalar field evolution sourced by hyperbolic encounters of black holes in quadratic scalar Gauss-Bonnet gravity. In this theory, single bla…
Spin-up and mass-gain in hyperbolic encounters of spinning black holes
Healey Kogan, Frederick C. L. Pardoe, Helvi Witek
Scattering black holes spin up and gain mass through the re-absorption of orbital angular momentum and energy radiated in gravitational waves during their encounter. In this work,…
Dephasing in binary black hole mergers surrounded by scalar wave dark matter clouds
Cheng-Hsin Cheng, Giuseppe Ficarra, Helvi Witek
Scalar fields of masses between and can exhibit enhanced gravitational interactions with black holes, and form scalar clouds around the…