Detection of Cosmic Microwave Background (CMB) polarization gives a confirmation of the mechanisms undergoing the matter condensation at the epoch of decoupling. Furthermore CMB polarization at large angular scales is a direct probe of a possible reionization occurred after the recombination. Expected degree of polarization is a small part (less than 10%) of the anisotropy at a fixed angular scale. This extremely faint signal requires dedicated experiments in order to be detected. In this contribution we describe our experimental approach and the solution we adopted and discuss the ultimate sensitivity reachable with our instrument.
Gervasi, M., Boella, G., Cavaliere, F., Passerini, A., Saglimbeni, M., Sgrò, R., et al. (1999). Search for Cosmic Microwave Background polarization. In 3 K COSMOLOGY: EC-TMR Conference (pp.154-164). America Institue of Physics.
Search for Cosmic Microwave Background polarization
GERVASI, MASSIMO;BOELLA, GIULIANO FILIPPO;PASSERINI, ANDREA;SIRONI, GIORGIO;ZANNONI, MARIO
1999
Abstract
Detection of Cosmic Microwave Background (CMB) polarization gives a confirmation of the mechanisms undergoing the matter condensation at the epoch of decoupling. Furthermore CMB polarization at large angular scales is a direct probe of a possible reionization occurred after the recombination. Expected degree of polarization is a small part (less than 10%) of the anisotropy at a fixed angular scale. This extremely faint signal requires dedicated experiments in order to be detected. In this contribution we describe our experimental approach and the solution we adopted and discuss the ultimate sensitivity reachable with our instrument.
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