Physics Colloquium - Cosmology with ACT and the Simons Observatory

Feb 4

Wednesday, February 4, 2026

3:30 am – 5:00 am

Physics 130

Presenter: Jeffrey McMahon

The Cosmic Microwave Background (CMB) encodes the history of our Universe, spanning enormous ranges of time and physical scale-from conditions in its earliest moments to the distribution of matter on the largest scales. Precision measurements of the CMB provide constraints on a diverse set of phenomena, including inflationary physics, light relic particles, dark matter, dark energy, and a broad range of astrophysical processes.
In this talk, I present results from the Atacama Cosmology Telescope (ACT) and discuss the progress that will be made with its recently commissioned successor, the Simons Observatory.

Contact

Eve Vavagiakis
eve.vavagiakis@duke.edu