2020/12/15 by Masashi Hazumi, M. Hazumi, P. A. R. Ade +332 · 142 citations
Physics and Astronomy · #COSMIC cancer database #Cosmic background radiation #Cosmic microwave background #Cosmology #Cosmology and Gravitation Theories #Observational cosmology #Polarization (electrochemistry) #Radio Astronomy Observations and Technology #Satellite #Sky #Superconducting and THz Device Technology #astro-ph.CO #astro-ph.IM #gr-qc #hep-ex #hep-ph
paper · pdf · doi:10.1117/12.2563050
published in Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave, 249 · 20 pages, 9 figures
openalex publication_date 2020/12/15 · openalex created_date 2020/12/21 · arxiv created 2021/01/29 · arxiv updated 2021/02/01 · openalex updated_date 2026/08/08
LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and fundamental physics. JAXA selected LiteBIRD in May 2019 as a strategic large-class (L-class) mission, with its expected launch in the late 2020s using JAXA's H3 rocket. LiteBIRD plans to map the cosmic microwave background (CMB) polarization over the full sky with unprecedented precision. Its main scientific objective is to carry out a definitive search for the signal from cosmic inflation, either making a discovery or ruling out well-motivated inflationary models. The measurements of LiteBIRD will also provide us with an insight into the quantum nature of gravity and other new physics beyond the standard models of particle physics and cosmology. To this end, LiteBIRD will perform full-sky surveys for three years at the Sun-Earth Lagrangian point L2 for 15 frequency bands between 34 and 448 GHz with three telescopes, to achieve a total sensitivity of 2.16 μK-arcmin with a typical angular resolution of 0.5° at 100 GHz. We provide an overview of the LiteBIRD project, including scientific objectives, mission requirements, top-level system requirements, operation concept, and expected scientific outcomes.