Framework for analysis of next generation, polarised CMB data sets in the presence of galactic foregrounds and systematic effects

Understand

Reaching the sufficient sensitivity to detect primordial B-modes requires modern CMB polarisation experiments to rely on new technologies, necessary for the deployment of arrays thousands of detectors with a broad frequency coverage and operating them for extended periods of time.

• This increased complexity of experimental design unavoidably introduces new instrumental and systematic effects, which may impact performance of the new instruments.
• In this work we extend the standard data analysis pipeline by including a (parametric) model of instrumental effects directly in the data model.
• We then correct for them in the analysis, accounting for the additional uncertainty in the final results.