The Simons Observatory: gain, bandpass and polarization-angle calibration requirements for B-mode searches
The Simons Observatory: gain, bandpass and polarization-angle calibration requirements for B-mode searches
Abstract We quantify the calibration requirements for systematic uncertainties for next-generation ground-based observatories targeting the large-angle B-mode polarization of the Cosmic Microwave Background, with a focus on the Simons Observatory (SO). We explore uncertainties on gain calibration, bandpass center frequencies, and polarization angles, including the frequency variation of the latter …