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The ghost light that illuminates clusters of galaxies

Friday 17th May 2019 - 8:00pm
Topic: The ghost light that illuminates clusters of galaxies
Speaker: Mireia Montes Quiles (UNSW)
Venue: Epping Creative Centre - 26 Stanley Road, Epping
Abstract: Clusters of galaxies contain hundreds to thousands of galaxies and are some of the largest bound structures in the Universe. They appear as the perfect tool to study a number of astrophysical problems such as how galaxies evolve in dense environments and the nature of dark matter. In the current picture of how clusters formed, the idea is that they grow by adding galaxies and other small clusters. One of the most fascinating signs of this growth is a very diffuse light produced by stars that drift freely between galaxies in the cluster. This is what we call intracluster light. Although it is faint and therefore challenging to observe, the properties of this ghostly glow give us important information about the processes that shaped the cluster. In this talk, I will present our current understanding of how this light forms and what kind of information it gives us about how galaxy clusters are built.
Biography: Mireia Montes is a Postdoctoral Research Associate at UNSW Sydney, working with A/Prof. Sarah Brough on deep images of clusters of galaxies. Previously, she was a Postdoctoral Associate at Yale University. She did her PhD at the Instituto de Astrofisica de Canarias (IAC, Spain). Originally, she is from Barcelona (Spain). Her research interest is understanding how galaxies form and evolve. She has been studying clusters of galaxies using very deep imaging to reveal faint structure that is currently hidden.

Event Date: 
Friday, 17 May, 2019 - 20:00
Epping Creative Centre, 26 Stanley Road, Epping NSW

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