Speaker
Description
Modern multi-platform, multi-band millimeter-wavelength surveys of the sky with arcminute resolution are designed to explore the origin and evolution of the universe. The next generation of CMB experiments, including the Simons Observatory (SO), will address a wide range of pressing scientific questions with unprecedented sensitivity. Among these, one of the primary targets is the faint large-scale B-mode polarization of the CMB, which provides a powerful probe into the high-energy physics of the early Universe. Observing this requires precise control of instrumental systematics, and a clear understanding of how properties such as noise correlations, optical efficiency, and calibration uncertainties propagate from raw data to cosmological parameters. Over the past year, the mid-frequency SO Small Aperture Telescopes (SATs) have undergone extensive on-sky testing, including realistic CMB and calibration scans to assess instrument readiness and data processing. Here we present preliminary polarization maps from the SATs at 90/150 GHz. I will discuss our efforts to characterize the propagation of pre-deployment instrument properties from time-ordered data to maps. Finally, I will highlight upcoming challenges that we expect in our analysis, and our strategies to address them to recover robust cosmological constraints.
| Would you be interested in presenting a poster if the conference is oversubcribed? | No |
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