Orateur
Description
LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission aimed to probe primordial cosmology and fundamental physics. The Japan Aerospace Exploration Agency (JAXA) selected LiteBIRD in May 2019 as a strategic large-class (L-class) mission, with an expected launch at the end of the decade. LiteBIRD will orbit the Sun-Earth Lagrangian point L2, where it will measure the cosmic microwave background (CMB) polarization over the entire sky for three years. The primary scientific objective of LiteBIRD is to search for the footprint left by cosmic inflation in the CMB polarization, achieving a precision on the tensor-to-scalar ratio measurement of 0.001. LiteBIRD will observe in 15 frequency bands between 34 and 448 GHz spread over three telescopes. The goal is to achieve an unprecedented total sensitivity of 2.2 μK-arcmin, with a typical angular resolution of 0.5° at 100 GHz. In this presentation, we will provide an overview of the LiteBIRD project, including status of the mission, scientific objectives, current instrument design and system requirements.
