Requirements for future CMB satellite missions: photometric and band-pass response calibration

Understand

Current and future Cosmic Microwave Background (CMB) Radiation experiments are targeting the polarized $B$-mode signal.

• The small amplitude of this signal makes a successful measurement challenging for current technologies.
• Therefore, very accurate studies to mitigate and control possible systematic effects are vital to achieve a successful observation.
• An additional challenge is coming from the presence of polarized Galactic foreground signals that contaminate the CMB signal.