LiteBIRD: testing cosmic inflation from L2

26 mai 2021, 15:00
40m

Orateur

Prof. Davide Poletti (SISSA Trieste)

Description

The LiteBIRD satellite is a CMB mission targeting the B-mode polarization and the primordial gravitational waves signal that it is expected to carry. Scheduled for flight in the late 2020s, LiteBIRD will complement ground-based efforts by mapping angular scales and observational frequencies unreachable from the ground. In particular, LiteBIRD will constrain both the reionization and the recombination bump of the B-mode power spectrum, using its 15 frequency bands—ranging from 34 to 448 GHz—to reject the emission from the Galactic thermal dust and synchrotron. In this talk, I will give a status update on LiteBIRD, its potential to constrain inflation and the challenges it will have to face, with particular attention to the problem of Galactic foregrounds.

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