3:30–4:30 pm ERC 161
Tobias Marriage , Johns Hopkins University, "The Cosmology Large Angular Scale Surveyor"
Host: Erik Shirokoff
The Cosmology Large Angular Scale Surveyor (CLASS) is a project to probe reionization and inflation by measuring the largest scales in the Cosmic Microwave Background (CMB) polarization. These scales are made accessible due to specialized front-end modulation technology and a survey strategy that covers 75% of the sky from Chile's Atacama Desert. Operating since 2016, CLASS observes at frequencies from 40 to 220 GHz to distinguish between CMB and Galactic emission. We are currently publishing results from the first two years of 40 GHz observations, which demonstrate recovery of large angular scale polarization. In this talk, I will give an overview and an update on CLASS as well as a discussion of the two-year results.