0 Assigned ID: 6310 ----- Attempting Submission 1 (Wed Apr 09 23:04:20 GMT 2025) ----- Globular clusters are ideal laboratories for studying how dynamical processes shape the formation and evolution of compact objects. Ample populations of radio pulsars, X-ray binaries, and cataclysmic variables are now observed in Milky Way globular clusters with specific abundances orders of magnitude higher than Galactic field populations. These populations are particularly pronounced in the most massive and dense systems. Galactic clusters 47 Tucanae, Liller 1, and Terzan 5 are prime examples: 47 Tuc and Ter 5 host more known pulsars than any other globular cluster, while Lil 1 exhibits unprecedented gamma-ray emission, hinting at a vast pulsar population of its own. Modern simulations and observations are now poised to further unveil the compact object populations of these massive clusters in unprecedented detail. Upcoming HST and JWST time-series photometry of these three clusters will provide the best insights yet into the ultracompact binaries in these systems. Meanwhile, state-of-the-art N-body techniques incorporating all relevant physics for compact objects are now capable of simulating these massive behemoths in their entirety. We propose to compute a public suite of N-body simulations of 47 Tuc, Ter 5, and Lil 1 to support these HST/JWST observations. These parallel numerical/observational efforts will provide the most robust constraints yet on compact binaries in the high-mass/high-density tail of globular clusters. This will provide unprecedented insight into the role of globular clusters in forming radio pulsars,``multi-messenger" gravitational wave sources, and the presence of intermediate-mass black holes in these systems. PI Kyle Kremer is an assistant professor at UC San Diego. He is an expert in numerical simulations of dense stellar clusters and their various compact object sources. Kremer will oversee the project and lead all simulation and publication efforts. Co-I Claire Ye is an expert in modeling pulsars and white dwarfs in globular clusters and will assist in simulation efforts. Co-I Geoffrey Mo is PI of the accompanying HST program GO-17724 that will perform time-domain observations of 47 Tuc. Co-I Kevin Burdge is PI of the accompanying JWST program GO-5381 that will perform time-domain observations of Terzan 5 and Liller 1. Both Mo and Burdge will facilitate comparisons between simulations and observed sources. Stellar Physics and Stellar Types Stellar Populations and the Interstellar Medium 0 false false false true false false false SUPPORTED