Seminar – Mathilde Jauzac (Durham University)

April 24, 2017 @ 2:00 pm – 3:00 pm
Title: Hubble Frontier Fields – An Extraordinary View into Galaxy Clusters

The Hubble Frontier Fields campaign ended in September 2016 and provided us with the deepest imaging ever obtained of galaxy cluster cores with the Hubble Space Telescope. Using this amazing dataset, we can probe the early Universe, galaxy evolution, as well as the physics of clusters. I will present the latest results we obtained on one of the HFF clusters, Abell 2744, and the caveats they highlighted on both the observing and simulation sides. If time permits, I will also present the case of SN Refsdal, the first multiply-lensed supernovae ever observed, that allowed us, lensing modelers, to test our techniques.