Testing the analytical blind separation method in simulated CMB polarization maps Larissa Santos, Jian Yao, Le Zhang, Shamik Ghosh, Pengjie Zhang, Wen Zhao, Thyrso Villela, Jiming Chen and Jacques Delabrouille A&A, 650 (2021) A65 Published online: 08 June 2021 DOI: 10.1051/0004-6361/201936546