Measuring the tensor to scalar ratio from CMB B-modes in the presence of foregrounds
Measuring the tensor to scalar ratio from CMB B-modes in the presence of foregrounds
<i>Aims. <i/>We investigate the impact of polarised foreground emission on the performances of future CMB experiments aiming to detect primordial tensor fluctuations in the early universe. In particular, we study the accuracy that can be achieved in measuring the tensor-to-scalar ratio <i>r<i/> in the presence of foregrounds.<i>Methods. <i/>We designed a …