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Accueil > Séminaires > Galaxy clusters : galaxy laboratories

Galaxy clusters : galaxy laboratories and cosmological probes

Begoña Ascaso (GEPI)

Galaxy clusters are the largest structures in the Universe. They are very interesting since they can be considered as galaxy laboratories or cosmological probes. In this talk, I will provide an overview of galaxy clusters from both points of view. I will first introduce the role that galaxy clusters play within the large scale structure and show recent results on cluster detection in a variety of surveys. Then, I will present on-going work on forecasting cosmological constraints from cluster counting, in particular, using mock catalogues that mimic next-generation surveys. Finally, I will summarize recent results on evolutionary process of brightest cluster galaxies (BCGs) within the last 7 Gyrs.