[astroseminar at Sapienza] 20/02/2020 at 16:00: Alessandro Melchiorri

[Elia Battistelli]

Title: Planck evidence for a closed Universe and a possible crisis for 
cosmology
Speaker: Alessandro Melchiorri
Institution: Sapienza, University of Rome
Date: Thursday 20 Feb 2020
Time: 4:00pm
Location: Aula Conversi, Marconi Building, Dept. of Physics, Sapienza 
University

Abstract:
Recent observations are confirming the standard lambda-cold dark matter 
cosmological model in a spectacular way. This is the "earworm" song 
playing in the head of cosmologists today. But is this true? In this 
talk, I will illustrate some of the tensions that are now arising 
between cosmological observations arguing that something more ricky 
could be in place.In particular, I will show how the recent Planck 
measurements show a statistically significant evidence for a closed 
universe,  possibly opening a "cosmological crisis" where disparate 
observed properties of the Universe appear to be mutually nconsistent.

web: https://agenda.infn.it/event/21592/