Overview

• The Delegate survey’s latest peer-reviewed paper documents that dwarf galaxies orbit NGC5713 and NGC5719 in coherent, rotating planes, a pattern likened to a cosmic “dance.”
• Researchers interpret these dynamics as an observational analog for the Milky Way–Andromeda merger predicted in about 2.5 billion years.
• The study reveals persistent discrepancies between these structured satellite systems and those produced by leading ΛCDM cosmological simulations.
• Authors plan several follow-up papers within the Delegate survey to expand the sample of interacting galaxy pairs and refine galaxy evolution models.
• Findings have implications for understanding satellite accretion, dark matter distributions, and the organization of galaxies during major mergers.