LiteBIRD, the next-generation cosmic microwave background (CMB) satellite, is set for 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 (34–448 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.

The LiteBIRD mission to explore cosmic inflation / T. Ghigna, A. Adler, K. Aizawa, H. Akamatsu, R. Akizawa, E. Allys, A. Anand, J. Aumont, J. Austermann, S. Azzoni, C. Baccigalupi, M. Ballardini, A. Banday, R. Barreiro, N. Bartolo, S. Basak, A. Basyrov, S. Beckman, M. Bersanelli, M. Bortolami, F. Bouchet, T. Brinckmann, P. Campeti, E. Carinos, A. Carones, F.J. Casas, K. Cheung, Y. Chinone, L. Clermont, F. Columbro, A. Coppolecchia, D. Curtis, P. de Bernardis, T. de Haan, E. de la Hoz, M. De Petris, S. Della Torre, G. Delle Monache, E. Di Giorgi, C. Dickinson, P. Diego-Palazuelos, J. Díaz García, M. Dobbs, T. Dotani, H.K. Eriksen, J. Errard, T. Essinger-Hileman, N. Farias, E. Ferreira, C. Franceschet, U. Fuskeland, G. Galloni, M. Galloway, K. Ganga, M. Gerbino, M. Gervasi, R. Génova-Santos, S. Giardiello, C. Gimeno-Amo, E. Gjerløw, R. González González, L. Grandsire, A. Gruppuso, N. Halverson, P. Hargrave, S. Harper, M. Hazumi, S. Henrot-Versillé, L. Hergt, D. Herranz, E. Hivon, R. Hlozek, T. Hoang, J. Hubmayr, K. Ichiki, K. Ikuma, H. Ishino, G. Jaehnig, B. Jost, K. Kohri, K. Konishi, L. Lamagna, M. Lattanzi, C. Leloup, F. Levrier, A. Lanoppan, G. Luzzi, J. Macias-Perez, B. Maffei, E. Marchitelli, E. Martínez-González, S. Masi, S. Matarrese, T. Matsumura, S. Micheli, M. Migliaccio, M. Monelli, L. Montier, G. Morgante, L. Mousset, Y. Nagano, R. Nagata, P. Natoli, A. Novelli, F. Noviello, I. Obata, A. Occhiuzzi, K. Odagiri, R. Omae, L. Pagano, A. Paiella, D. Paoletti, G. Pascual-Cisneros, G. Patanchon, V. Pavlidou, F. Piacentini, M. Piat, G. Piccirilli, M. Pinchera, G. Pisano, L. Porcelli, N.E. Raffuzzi, C. Raum, M. Remazeilles, A. Ritacco, J.A. Rubino-Martin, M. Ruiz-Granda, Y. Sakurai, G. Savini, D. Scott, Y. Sekimoto, M. Shiraishi, G. Signorelli, S.L. Stever, R. Sullivan, A. Suzuki, R. Takaku, H. Takakura, S. Takakura, Y. Takase, A. Tartari, K. Tassis, K.L. Thompson, M. Tomasi, M. Tristram, C. Tucker, L. Vacher, B. van Tent, P. Vielva, K. Watanuki, I.K. Wehus, B. Westbrook, G. Weymann-Despres, B. Winter, E.J. Wollack, A. Zacchei, M. Zannoni, Y. Zhou (PROCEEDINGS OF SPIE, THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING). - In: Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave / [a cura di] L.E. Coyle, S. Matsuura, M.D. Perrin. - [s.l] : SPIE, 2024. - ISBN 9781510675070. (( convegno SPIE Astronomical Telescopes + Instrumentation tenutosi a Yokohama nel 2024 [10.1117/12.3021377].

The LiteBIRD mission to explore cosmic inflation

M. Bersanelli;C. Franceschet;M. Tomasi;
2024

Abstract

LiteBIRD, the next-generation cosmic microwave background (CMB) satellite, is set for 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 (34–448 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.
Settore PHYS-05/A - Astrofisica, cosmologia e scienza dello spazio
   Partecipazione italiana alla Fase A della missione LiteBIRD
   LiteBIRD
   AGENZIA SPAZIALE ITALIANA
   2020-9-HH.0
2024
https://arxiv.org/pdf/2406.02724
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