Speaker: Sandro Ciarlariello

Weak gravitational lensing is a powerful probe to study the cosmological model. It can be measured through correlations of shape distorsions and size magnification. However it can be that galaxy shapes and sizes are intrinsically correlated.
In this talk, after an introduction about how gravitational lensing (and in particular weak lensing) works, I will describe some theoretical models to account for these intrinsic correlations and the potential impact they can have on weak lensing surveys.