First release of LiteBIRD simulations from an end-to-end pipeline

Bortolami, M., Raffuzzi, N., Pagano, L., Puglisi, G., Anand, A., Banday, A.J., Campeti, P., Galloni, G., Lonappan, A.I., Monelli, M., Tomasi, M., Weymann-Despres, G., Adak, D., Allys, E., Aumont, J., Aurvik, R., Baccigalupi, C., Ballardini, M., Barreiro, R.B., Bartolo, N., Basak, S., Bersanelli, M., Besnard, A., Brinckmann, T., Calabrese, E., Carinos, E., Carones, A., Casas, F.J., Cheung, K., Citran, M., Clermont, L., Columbro, F., Coppi, G., Coppolecchia, A., Cuttaia, F., Dal Bo, P., de Bernardis, P., de la Hoz, E., De Lucia, M., Della Torre, S., Diego-Palazuelos, P., Eriksen, H.K., Essinger-Hileman, T., Franceschet, C., Fuskeland, U., Galloway, M., Gerbino, M., Gervasi, M., Ghigna, T., Giardiello, S., Gimeno-Amo, C., Gjerløw, E., Gruppuso, A., Hazumi, M., Henrot-Versillé, S., Hergt, L.T., Hivon, E., Jost, B., Kohri, K., Lamagna, L., Lari, T., Lattanzi, M., Leloup, C., Levrier, F., López-Caniego, M., Luzzi, G., Macias-Perez, J., Maffei, B., Martínez-González, E., Masi, S., Matarrese, S., Matsumura, T., Micheli, S., Montier, L., Morgante, G., Mousset, L., Nagata, R., Namikawa, T., Novelli, A., Noviello, F., Obata, I., Occhiuzzi, A., Paiella, A., Paoletti, D., Pascual-Cisneros, G., Piacentini, F., Pinchera, M., Polenta, G., Porcelli, L., Remazeilles, M., Ritacco, A., Rizzieri, A., Rubiño-Martín, J.A., Ruiz-Granda, M., Sanghavi, J., Sauvage, V., Shiraishi, M., Signorelli, G., Stever, S.L., Sullivan, R.M., Takase, Y., Tassis, K., Terenzi, L., Tristram, M., Vacher, L., van Tent, B., Vielva, P., Wehus, I.K., Zannoni, M., Zhou, Y. and The LiteBIRD collaboration 2025. First release of LiteBIRD simulations from an end-to-end pipeline. Journal of Cosmology and Astroparticle Physics 2025 (11) , 042. 10.1088/1475-7516/2025/11/042

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Abstract

The LiteBIRD satellite mission aims at detecting Cosmic Microwave Background B modes with unprecedented precision, targeting a total error on the tensor-to-scalar ratio r of δr ∼ 0.001. Operating from the L2 Lagrangian point of the Sun-Earth system, LiteBIRD will survey the full sky across 15 frequency bands (34 to 448 GHz) for 3 years.The current LiteBIRD baseline configuration employs 4508 detectors sampling at 19.1 Hz to achieve an effective polarization sensitivity of 2 μK arcmin and an angular resolution of 31 arcmin (at 140 GHz). We describe the first release of the official LiteBIRD simulations, realized with a new simulation pipeline developed using the LiteBIRD Simulation Framework. This pipeline generates 500 full-sky simulated maps at a HEALPix resolution of N side=512. The simulations include also one year of Time Ordered Data (TOD) for approximately one-third of LiteBIRD's total detectors.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Schools > Physics and Astronomy
Additional Information:	License information from Publisher: LICENSE 1: URL: http://creativecommons.org/licenses/by/4.0/, Type: cc-by
Publisher:	IOP Publishing
Date of First Compliant Deposit:	19 November 2025
Date of Acceptance:	19 August 2025
Last Modified:	19 Nov 2025 09:45
URI:	https://orca.cardiff.ac.uk/id/eprint/182499

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