Darwish, Omar (2017) Exploiting foreground non-Gaussianity in component separation for Cosmic Microwave Background analysis. [Magistrali biennali]
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The Cosmic Microwave Background(CMB), a relic radiation coming from when the Universe was about 380000 years old, is one of the best probes of our Universe. Its study allows the extraction of the cosmological parameters that define the cosmological Lambda-CDM model. In the sky, in the microwave band there are other sources of electromagnetic radiation that lies between us and the last scattering surface. These, the so called foregrounds, are a source of contamination for the CMB data and we want to remove them in order to create reliable CMB maps. In this work we exploit the non Gaussianity of the foregrounds to separate the CMB signal from them.
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