Spin-Precession in Eccentric Spinning Binary Black Hole Mergers

We use the Einstein Toolkit, an open-source numerical relativity software, to gain new insights into the complex dynamics of eccentric, spin-precessing binary black hole mergers. Our focus is on systems with mass ratios q = (2, 4, 6). We present a new set of numerical relativity waveforms, and quantify the impact of spin-precession and eccentricity on the time evolution of gravitational waves. This research is timely and relevant to enhance our understanding of black hole binaries and the astrophysical environments where they are assembled and evolve. Our work also sheds new light on the importance of including higher order wave modes to detect and characterize these complex signals with available gravitational wave observatories.