ABSTRACT
Since the discovery of the accelerated expansion of the universe in the 2000, dark matter and dark energy have been the main drivers of research in observational cosmology. At the same time, gravitational lensing, boosted by the Hubble Space Telescope observations, has become a key probe of the dark sector. In this talk, I will review this topic and focus on my research in Euclid and in DESI. I will demonstrate how the combination of observations in imaging and spectroscopy is key at breaking degeneracies both at small scale for dark matter, and large scale for dark energy.
BIO
Prof. Eric Jullo got his PhD in Aix-Marseille University in 2008, supervised by Prof. Jean-Paul Kneib. Next he moved to the Jet Propulsion Laboratory, where he got a NASA Fellowship with Prof. Jason D. Rhodes. Finally, he moved back to Marseille in 2011, where he got a postdoc funded by the Centre National d’Etude Spatiale (CNES), and obtained an assistant professor position at Aix-Marseille University in 2012. Prof. Eric Jullo has been working with HST, VLT data during his PhD. Then, he joined the COSMOS team in 2009, the Euclid collaboration in 2011, the SDSS/BOSS collaboration in 2012, and the DESI collaboration in 2015.
Host: Song Huang
