2025/02/14 by Jake Postiglione, Postiglione, Jake, K. E. Saavik Ford +8 · 1 voice · 1 citation
Engineering · Physics and Astronomy · #Black Holes and Theoretical Physics #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #astro-ph.HE
paper · pdf · doi:10.48550/arxiv.2502.10591
openalex publication_date 2025/02/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Binary black holes (BBH) are expected to form and merge in active galactic nuclei (AGN), deep in the potential well of a supermassive black hole (SMBH), from populations that exist in a nuclear star cluster (NSC). Here we investigate the gravitational wave (GW) signature of a BBH lensed by a nearby SMBH. For a fiducial GW150914-like BBH orbiting close to a 108M\odot SMBH located at z=0.1, the lensed GW signal varies in a predictable manner in and out of the LISA detectability band and across frequencies. The occurrence of such signatures has the potential to confound LISA global fit models if they are not modelled. Detection of these sources provide an independent measure of AGN inclination angles, along with detecting warping of the inner disk, and measuring the SMBH spin.