Foreground cleaning for upcoming CMB B-mode experiments.
III - Astrofisica
Aula 32B-3 - Lunedì 17 h 16:00 - 19:00
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A first detection of Cosmic Microwave Background (CMB) B-mode polarization could constrain the existence of a primordial Gravitational Waves background, as predicted by the inflationary scenario, as well as the reionization history of the Universe. The major obstacle towards a B-mode observation is the presence of polarized foregrounds. In particular, synchrotron and thermal dust emission from the Galaxy are dominant at lower and higher frequencies, respectively. Here we investigate the use of an Internal Linear Combination (ILC) technique to isolate the primordial signal from foreground contamination in the context of upcoming B-mode experiments.