The Emergence of Dwarf Galaxies, Star Clusters and Something In-Between

Guest Seminar Speaker Prof. Justin I. Read, University of Surrey
Friday, March 3, 2023 - 15:00 to 16:00
PCT, Science Building, North Campus, Maynooth University

Over the past five years, numerical simulations of galaxy formation have quietly passed a key milestone.  The latest cosmological simulations are now able to resolve the sites of star formation and the impact of individual stellar feedback events.

In this talk, I explain why this has led to a new level of realism that makes simulations predictive, for the first time. I present the latest results from the "EDGE" simulation project, focussed on modelling the very smallest stellar systems in the Universe at high fidelity. I show how realistic dwarf galaxies and dense star clusters - globular clusters and nuclear star clusters - naturally emerge in EDGE.

I present a new semi-empirical tool for galaxy formation, DarkLight, that allows us to scale up the results from a small number of high resolution EDGE simulations to full galaxy populations. And, I present the testable predictions that our EDGE simulations make for new objects that should be found in up-coming surveys.

Finally, I conclude with a discussion of where the field is heading next.

For those wishing to join remotely, please click on the link below:

Seminar Series 22/23 link