Speaker
Jo Dunkley
Description
I will show new results from the Atacama Cosmology Telescope (ACT), including cosmological constraints from the sixth data release. Using data gathered from 2017 - 2022, the new maps cover 40% of the microwave sky with five times the angular resolution and three times the depth in polarization as the Planck satellite. The improved cosmic microwave background (CMB) measurements at small scales complement the larger-scale information from Planck. I will describe how we use these datasets, along with tracers of large-scale-structure, to test the cosmological model and probe fundamental physics.