State of the Universe
New results in Cosmological Weak Lensing
by Prof. Alexandre Refregier (ETH, Zurich)
Monday, January 4, 2016
from
to
(Asia/Kolkata)
at A304
at A304
Description |
Weak gravitational lensing is a unique technique to map the distribution of dark matter in the universe. It is also a sensitive probe of large scale structures in the universe and cosmological parameters. I will first briefly describe the principles of weak lensing. I will then review the current observational status of this field, highlighting several new measurements especially from the ongoing Dark Energy Survey (DES). I will then discuss the status of tensions between large scale structure probes and the cosmic microwave background and describe a new technique to quantify information gains and tensions in cosmology inspired from information theory. |