from 30 May 2023 to 1 June 2023
Europe/Lisbon timezone

The Pantheon+ Supernova Sample and Cosmological Constraints

30 May 2023, 17:10


Faculdade de Ciências da Universidade de Lisboa (PT)


Dillon BROUT


I will detail leaps of progress in Type Ia Supernova Cosmology (SNIa) that have culminated in the recent Pantheon+ cosmological analysis of 1701 SNIa light curves. While this SN dataset places strong constraints on dark matter, dark energy and solidify Lambda CDM, Pantheon+ is also used in the recent SH0ES constraints of the local value of the Hubble Constant (the current expansion rate of the universe) that are now in 5sigma tension with the inferred value from the cosmic microwave background. I will detail the formulation of the SN dataset, internal consistency checks, and our robust treatment of systematic uncertainties that have built confidence in the cosmological measurements and that also pave the path for future surveys.

Presentation Materials

There are no materials yet.
Your browser is out of date!

Update your browser to view this website correctly. Update my browser now