Description
Observations from the SAMI integral field spectroscopic survey have demonstrated that older galaxies have lower spin and younger galaxies have higher spin, even when the effects of stellar mass and environment are controlled. A possible driver of this “spin-age” relation is the presence of internal secular heating driven by bars and spiral arms. In the next-generation EAGLE simulation, COLIBRE, we find a population of high-spin, flattened galaxies and evaluate the origin of the spin-age relation in this new cosmological, hydrodynamical simulation. We investigate the cosmic role of barred galaxies, using the model to explore how these systems move through this parameter space and evolve over time. This presentation will demonstrate the emergence of a realistic spin-age relation in COLIBRE, explore the role of bars in driving this relation, and make comparison to the same observation relation in the SAMI survey using the open source, mock IFU software, SimSpin.
