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Globular cluster systems as probes of the build-up of galaxies and their environments | Dr. Ana Chies Santos (Federal University of Rio Grande do Sul)

Data: 01.12.2022

Palestrante: Dr. Ana Chies Santos (Federal University of Rio Grande do Sul)

Link: https://youtu.be/vnRSqFGy1n8

Resumo: Globular clusters (GCs) are found in galaxies spanning a large range of masses, from giants to dwarfs, and because of their high surface brightnesses, they can be readily identified up to distances z~0.2 with the Hubble Space Telescope. The properties of GC systems are intrinsically connected to the assembly histories of their host galaxies, and they can be used as tracers of the total mass of their parent halos. Moreover, GCs are not only found in the bodies of their host galaxies but also free-floating in galaxy clusters, not necessarily bound to a host galaxy. In this talk, I will review the main properties of globular cluster systems across a range of masses and environments and present recent works from our group on the topic. I will show our current efforts to map GC systems through multi-band imaging around the surprisingly neglected nearby spiral galaxies, relic galaxies, and low surface brightness galaxies. I will finish by showing prospects for the field in the coming years with the new generation of ground-based surveys and space facilities.