Description
The Simons Observatory Small Aperture Telescopes (SATs), located in Chile’s Atacama desert, are currently observing the polarised microwave sky at degree scales, on a quest to measure or constrain primordial gravitational waves, or B-modes, from the very early Universe. Disentangling this elusive signal from Galactic foregrounds, instrumental noise, and systematic effects requires robust pipelines tackling tasks that range from data reduction to component separation. In this talk, I will focus on the SAT power spectrum pipeline - selected to obtain the first constraints on the tensor-to-scalar ratio r - and explain strategies to minimise its bias and uncertainty in the presence of polarised synchrotron and dust emission from the Milky Way.
Author
Kevin Wolz
(University of Oxford)
