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Scaling relations and stellar populations of galaxy clusters from their first epochs of assembly to the present

Abstract : This thesis focuses on the role of galaxy clusters in cosmology and galaxy evolution. I use multi-wavelenght photometric and spectroscopic observations (optical, mm, near/mid- IR) which I analyse with statistical methods. For a sample of clusters detected by the Planck satellite and re-observed with the Gemini optical telescope, I have studied the dynamics of member galaxies to probe their mass and understand possible systematics affecting such estimates, of crucial importance in cluster cosmology at present. Within the CARLA (Clusters Around Radio Loud AGN) collaboration, I examine morphology and stellar populations of galaxies in clusters and proto-clusters in their first assembly phases (z>1.4), with the aim of shedding light on the quenching of star formation and the role of the environment on galaxy evolution.
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Stefania Amodeo. Scaling relations and stellar populations of galaxy clusters from their first epochs of assembly to the present. Astrophysics [astro-ph]. Université Paris sciences et lettres, 2018. English. ⟨NNT : 2018PSLEO012⟩. ⟨tel-02110958⟩

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