Speaker
Description
A non-negligible population of binary black holes (BBHs) forming dynamically in active astrophysical environments is predicted to radiate graviational waves (GWs)
in the frequency band of ground-based LIGO, Virgo and KAGRA (LVK) GW detectors. Thus, strong evidence for orbital eccentricity in GW detections will play a pivotal role in unveiling the astrophysical origins of BBH mergers. Despite recent progress on modelling GWs from eccentric binaries, GW data analysis of BBH mergers is still limited to systems on quasi-circular orbits, due to the lack of waveform models that accurately predict the signals of eccentric BBH mergers in a computationally efficient manner. In this work, we present an inspiral-merger-ringdown phenomenological waveform model in frequency domain for binary black holes with non-precessing spins in ellitpical orbits. Eccentric corrections are incorporated in the waveform multipoles, and validated against eccentric numerical relativity waveforms finding unfaithfulness below 2%. Additionally, we perform parameter estimation runs on GW events detected by the LVK and demonstrate that the computational efficiency of the model enables routine GW data analysis and systematic studies of large populations of generic BBHs.
