Orateur
Description
The Simons Observatory is an ensemble of telescopes being progressively deployed on Cerro Toco (Chile), aiming at measuring both small and large angular scales of the cosmic microwave background. Three Small Aperture Telescopes have been successfully installed on site and started operating from late 2023. These half-meter mirrors telescopes are designed to measure the large-scale polarization signal from ~10% of the sky in multiple frequency bands. This measurement will ultimately be used to look for imprints of the propagation of primordial gravitational waves in the early-universe : primordial B-modes. The observatory will be further improved with contributions from the international collaborators, providing additional SATs for improved sensitivity and frequency coverage. In this talk, I will present an overview of the current status of the experiment, with a particular focus on the SATs, and the strategies we will deploy to analyze its data.