3 papers
gr-qc2026
Polarization Analysis of Ringdown Signals
Nicole Khusid, Will Farr, Max Isi
Merging binary black holes exhibit a ringdown phase in which they primarily emit gravitational waves in the shape of damped sinusoids corresponding to quasi-normal modes of the Ker…
astro-ph.HE2026
Pulsar timing arrays: the emerging gravitational-wave landscape
C. M. F. Mingarelli, J. A. Casey-Clyde, Y. T. Chang +8
Pulsar Timing Array (PTA) experiments have entered a new era with evidence for a nanoHertz gravitational wave background (GWB). This review describes the physics of detection, deta…
gr-qc2025
GW231123 ringdown: interpretation as multimodal Kerr signal
Harrison Siegel, Nicole M. Khusid, Maximiliano Isi +1
GW231123 is a short-duration, low-frequency gravitational wave signal consistent with a binary black hole coalescence and dominated by the merger-ringdown regime due to the high ma…