Modeling beam chromaticity for high-resolution CMB analyses
Modeling beam chromaticity for high-resolution CMB analyses
We investigate the impact of beam chromaticity, i.e., the frequency dependence of the beam window function, on cosmological and astrophysical parameter constraints from CMB power spectrum observations. We show that for future high-resolution CMB measurements it is necessary to include a color-corrected beam for each sky component with a distinct …