|Speaker||Talk Date||Talk Series|
|Stefano Borgani (INAF Trieste)||30 May 2013||Institute of Astronomy Colloquia|
In my talk I will first briefly review the application of galaxy clusters as tools to trace cosmic evolution. I will then discuss the recent advances in the this field, as driven by the increasing quality of observational data, and by the much improved description of clusters through detailed numerical simulations. I will present recent results on the analysis of such simulations aimed at calibrating clusters as precision tools for cosmology. In this context, I will discuss possible biases that affect mass estimates based on X-ray and weak lensing data.