Using Type Ia Supernovae To Measure The Hubble Constant and Dark Energy

by Daniel Scolnic (Duke University)

Monday 13 Dec 2021, 16:00 → 18:00 Europe/Rome

Aula 6 (Dip. di Fisica - Edificio E. Fermi)

Type Ia Supernovae (SNe Ia) are critical tools for measuring the current expansion rate of the universe, described by the Hubble Constant, and the accelerating expansion, due to a mysterious `dark energy’.  As measurements from SNe Ia continue to be important and exciting, there has been widespread interest on strengths and limitations of using SNe Ia in analyses.  Here, I review the latest cosmological results using SNe Ia as well as systematic uncertainties and needed improvements for future analyses.  I present a new key insight on the physics of SNe that addresses some of the most confounding issues of the last decade.