Characterizing Cosmic Birefringence in the Presence of Galactic Foregrounds and Instrumental Systematic Effects

The authors propose a new analysis framework to account simultaneously for Galactic foregrounds and instrumental effects, in order to break the degeneracy between Cosmic Birefringence (CB) angle and Cosmic Microwave Background detector effects. They thus pave the way for Simons Observatory-like Small Aperture Telescopes to test claims for CB detection.