@Article{SantosYZGZZVCD:2021:TeAnBl,
               author = "Santos, L. and Yao, J. and Zhang, L. and Ghosh, S. and Zhang, P. 
                         and Zhao, W. and Villela Neto, Thyrso and Chen, J. and 
                         Delabrouille, J.",
          affiliation = "{Yangzhou University} and {Shanghai Jiao Tong University} and 
                         {Shanghai Jiao Tong University} and {University of Science and 
                         Technology of China} and {Shanghai Jiao Tong University} and 
                         {University of Science and Technology of China} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {University of Science 
                         and Technology of China} and {University of Science and Technology 
                         of China}",
                title = "Testing the analytical blind separation method in simulated CMB 
                         polarization maps",
              journal = "Astronomy \& Astrophysics",
                 year = "2021",
               volume = "650",
                pages = "A65",
                month = "June",
             keywords = "Cosmic background radiation, Cosmology: observations, Methods: 
                         data analysis.",
             abstract = "ontext. Multi-frequency observations are needed to separate the 
                         cosmic microwave background (CMB) from foreground emission and 
                         accurately extract cosmological information from the data. The 
                         analytical blind separation (ABS) method is dedicated to 
                         extracting the CMB power spectrum from multi-frequency 
                         observations in the presence of contamination from astrophysical 
                         foreground emission and instrumental noise. Aims. In this study, 
                         we apply the ABS method to simulated sky maps as could be observed 
                         with a future space-borne survey in order to test its capability 
                         of determining the CMB polarization E- and B-mode power spectra. 
                         Methods. We present the ABS method performance on simulations for 
                         both a full-sky analysis and for an analysis concentrating on sky 
                         regions less impacted by Galactic foreground emission. Results. We 
                         discuss the origin and minimization of biases in the estimated CMB 
                         polarization angular power spectra. We find that the ABS method 
                         performs quite well for the analysis of full-sky observations at 
                         intermediate and small angular scales, in spite of strong 
                         foreground contamination. On the largest scales, extra work is 
                         still required to reduce biases of various origins and the impact 
                         of confusion between CMB E and B polarization for partial sky 
                         analyses.",
                  doi = "10.1051/0004-6361/201936546",
                  url = "http://dx.doi.org/10.1051/0004-6361/201936546",
                 issn = "0004-6361 and 1432-0746",
             language = "en",
        urlaccessdate = "20 maio 2024"
}