BIMSA > Geometry and Physics Seminar Is Hubble constant is constant?
Is Hubble constant is constant?
Organizers
Hamed Adami , Chi Ming Chang , Mohammad Yavartanoo
Speaker
Eoin Ó Colgáin
Time
Thursday, March 17, 2022 10:00 AM - 11:00 AM
Venue
1131
Online
Zoom 849 963 1368 (YMSC)
Abstract
Modern cosmology rests upon the Cosmological Principle or FLRW paradigm, namely the assumption that the Universe is isotropic and homogeneous at large scales. Working within these assumptions, we are witnessing a potential 5 sigma discrepancy in the Hubble constant H0 between early and late Universe determinations. I will explain how this discrepancy may be an artifact of a breakdown of FLRW at large scales. If true, we're looking at paradigm shift in cosmology.