Weak lensing with uncertain redshifts

Weak lensing with uncertain redshifts

Weak lensing with uncertain redshifts The cosmological conclusions of weak lensing surveys are very sensitive to the assumed redshift distributions of sources placed in different tomographic bins. In reality, these distributions are not known quantities, so from a...
The (endless) quest for obscured AGN

The (endless) quest for obscured AGN

The (endless) quest for obscured AGN In the last twenty years, X-ray surveys have revealed that a significant fraction of accretion through cosmic time is obscured. In this talk I will highlight some recent results obtained by combining the strength of deep X-ray...