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The LiteBIRD mission to explore cosmic inflation

Ghigna, T; Adler, A; Aizawa, K; Akamatsu, H; Akizawa, R; Allys, E; Anand, A; ... Mousset, L; + view all (2024) The LiteBIRD mission to explore cosmic inflation. In: Coyle, Laura E and Perrin, Marshall D and Matsuura, Shuji, (eds.) Proceedings of SPIE - The International Society for Optical Engineering. (pp. p. 1309228). SPIE: Yokohama, Japan. Green open access

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Abstract

LiteBIRD, the next-generation cosmic microwave background (CMB) experiment, aims for a launch in Japan’s fiscal year 2032, marking a major advancement in the exploration of primordial cosmology and fundamental physics. Orbiting the Sun-Earth Lagrangian point L2, this JAXA-led strategic L-class mission will conduct a comprehensive mapping of the CMB polarization across the entire sky. During its 3-year mission, LiteBIRD will employ three telescopes within 15 unique frequency bands (ranging from 34 through 448 GHz), targeting a sensitivity of 2.2 µK-arcmin and a resolution of 0.5◦ at 100 GHz. Its primary goal is to measure the tensor-to-scalar ratio r with an uncertainty δr = 0.001, including systematic errors and margin. If r ≥ 0.01, LiteBIRD expects to achieve a > 5σ detection in the ℓ = 2–10 and ℓ = 11–200 ranges separately, providing crucial insight into the early Universe. We describe LiteBIRD’s scientific objectives, the application of systems engineering to mission requirements, the anticipated scientific impact, and the operations and scanning strategies vital to minimizing systematic effects. We will also highlight LiteBIRD’s synergies with concurrent CMB projects.

Type: Proceedings paper
Title: The LiteBIRD mission to explore cosmic inflation
Event: Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave
Dates: 16 Jun 2024 - 22 Jun 2024
Open access status: An open access version is available from UCL Discovery
DOI: 10.1117/12.3021377
Publisher version: https://doi.org/10.1117/12.3021377
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics
URI: https://discovery.ucl.ac.uk/id/eprint/10203079
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