OBSERVING THE POLARIZED COSMIC MICROWAVE BACKGROUND FROM THE EARTH: SCANNING STRATEGY AND POLARIMETERS TEST FOR THE LSPE/STRIP INSTRUMENT ...

• Main Author: INCARDONA, FEDERICO
• Format: Text
• Language: English
• Published: Universit� degli Studi di Milano 2020
• Subjects: Milky Way; Observatorio; polar night
• Online Access: https://dx.doi.org/10.13130/incardona-federico_phd2020-01-17; http://air.unimi.it/handle/2434/701276

Detecting B-mode polarization anisotropies on large angular scales in the Cosmic Microwave Background (CMB) polarization pattern is one of the major challenges in modern observational cosmology since it would give us an important evidence in favor of the inflationary paradigm and would shed light on the physics of the very early Universe. Multi-frequency observations are required to disentangle the very weak CMB signal from diffuse polarized foregrounds originating by radiative processes in our galaxy. The ?Large Scale Polarization Explorer? (LSPE) is an experiment that aims to constrain the ratio between the amplitudes of tensor and scalar modes to r ? 0.03 and to study the polarized emission of the Milky Way. LSPE is composed of two instruments: SWIPE, a stratospheric balloon operating at 140, 210 and 240 GHz that will fly for two weeks in the Northern Hemisphere during the polar night of 2021, and STRIP, a ground-based telescope that will start to take data in early 2021 from the ?Observatorio del Teide? ...