A simulation framework for the LiteBIRD instruments

Tomasi, M.; Pagano, L.; Anand, A.; Baccigalupi, C.; Banday, A.J.; Bortolami, M.; Galloni, G.; Galloway, M.; Ghigna, T.; Giardiello, S.; Gomes, M.; Hivon, E.; Krachmalnicoff, N.; Micheli, S.; Monelli, M.; Nagano, Y.; Novelli, A.; Patanchon, G.; Poletti, D.; Puglisi, G.; Raffuzzi, N.; Reinecke, M.; Takase, Y.; Weymann-Despres, G.; Adak, D.; Allys, E.; Aumont, J.; Aurvik, R.; Ballardini, M.; Barreiro, R.B.; Bartolo, N.; Basak, S.; Bersanelli, M.; Besnard, A.; Brinckmann, T.; Calabrese, E.; Campeti, P.; 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.; Gerbino, M.; Gervasi, M.; Gimeno-Amo, C.; Gjerløw, E.; Gruppuso, A.; Hazumi, M.; Henrot-Versillé, S.; Hergt, L.T.; Jost, B.; Kohri, K.; Lamagna, L.; Lari, T.; Lattanzi, M.; Leloup, C.; Levrier, F.; Lonappan, A.I.; López-Caniego, M.; Luzzi, G.; Macias-Perez, J.; Maffei, B.; Martínez-González, E.; Masi, S.; Matarrese, S.; Matsumura, T.; Montier, L.; Morgante, G.; Mousset, L.; Nagata, R.; 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.; Tassis, K.; Terenzi, L.; Vacher, L.; Van Tent, B.; Vielva, P.; Wehus, I.K.; Zannoni, M.; Zhou, Y.; Null, N.

doi:10.1088/1475-7516/2025/11/040

Journal of Cosmology and Astroparticle Physics The International School for Advanced Studies (SISSA) logo. paper • The following article is Open access A simulation framework for the LiteBIRD instruments M. Tomasi, L. Pagano, A. Anand, C. Baccigalupi, A.J. Banday, M. Bortolami, G. Galloni, M. Galloway, T. Ghigna, S. Giardiello Published 13 November 2025 • © 2025 The Author(s) Journal of Cosmology and Astroparticle Physics, Volume 2025, November 2025Citation M. Tomasi et al JCAP11(2025)040DOI 10.1088/1475-7516/2025/11/040 Download Article PDF Download PDF Article metrics 93 Total downloads Share this article Abstract LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission focused on primordial cosmology and fundamental physics. In this paper, we present the LiteBIRD Simulation Framework (LBS), a Python package designed for the implementation of pipelines that model the outputs of the data acquisition process from the three instruments on the LiteBIRD spacecraft: LFT (Low-Frequency Telescope), MFT (Mid-Frequency Telescope), and HFT (High-Frequency Telescope). LBS provides several modules to simulate the scanning strategy of the telescopes, the measurement of realistic polarized radiation coming from the sky (including the Cosmic Microwave Background itself, the Solar and Kinematic dipole, and the diffuse foregrounds emitted by the Galaxy), the generation of instrumental noise and the effect of systematic errors, like pointing wobbling, non-idealities in the Half-Wave Plate, et cetera. Additionally, we present the implementation of a simple but complete pipeline that showcases the main features of LBS. We also discuss how we ensured that LBS lets people develop pipelines whose results are accurate and reproducible. A full end-to-end pipeline has been developed using LBS to characterize the scientific performance of the LiteBIRD experiment. This pipeline and the results of the first simulation run are presented in Puglisi et al. (2025).

A simulation framework for the LiteBIRD instruments / M. Tomasi, L. Pagano, A. Anand, C. Baccigalupi, A.J. Banday, M. Bortolami, G. Galloni, M. Galloway, T. Ghigna, S. Giardiello, M. Gomes, E. Hivon, N. Krachmalnicoff, S. Micheli, M. Monelli, Y. Nagano, A. Novelli, G. Patanchon, D. Poletti, G. Puglisi, N. Raffuzzi, M. Reinecke, Y. Takase, G. Weymann-Despres, D. Adak, E. Allys, J. Aumont, R. Aurvik, M. Ballardini, R.B. Barreiro, N. Bartolo, S. Basak, M. Bersanelli, A. Besnard, T. Brinckmann, E. Calabrese, P. Campeti, E. Carinos, A. Carones, F.J. Casas, K. Cheung, M. Citran, L. Clermont, F. Columbro, G. Coppi, A. Coppolecchia, F. Cuttaia, P. Dal Bo, P. De Bernardis, E. De La Hoz, M. De Lucia, S. Della Torre, P. Diego-Palazuelos, H.K. Eriksen, T. Essinger-Hileman, C. Franceschet, U. Fuskeland, M. Gerbino, M. Gervasi, C. Gimeno-Amo, E. Gjerløw, A. Gruppuso, M. Hazumi, S. Henrot-Versillé, L.T. Hergt, B. Jost, K. Kohri, L. Lamagna, T. Lari, M. Lattanzi, C. Leloup, F. Levrier, A.I. Lonappan, M. López-Caniego, G. Luzzi, J. Macias-Perez, B. Maffei, E. Martínez-González, S. Masi, S. Matarrese, T. Matsumura, L. Montier, G. Morgante, L. Mousset, R. Nagata, F. Noviello, I. Obata, A. Occhiuzzi, A. Paiella, D. Paoletti, G. Pascual-Cisneros, F. Piacentini, M. Pinchera, G. Polenta, L. Porcelli, M. Remazeilles, A. Ritacco, A. Rizzieri, J.A. Rubiño-Martín, M. Ruiz-Granda, J. Sanghavi, V. Sauvage, M. Shiraishi, G. Signorelli, S.L. Stever, R.M. Sullivan, K. Tassis, L. Terenzi, L. Vacher, B. Van Tent, P. Vielva, I.K. Wehus, M. Zannoni, Y. Zhou, N. Null. - In: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS. - ISSN 1475-7516. - 2025:11(2025 Nov 13), pp. 1-38. [10.1088/1475-7516/2025/11/040]

A simulation framework for the LiteBIRD instruments

M. Tomasi^Primo;Pagano, L.;Anand, A.;Baccigalupi, C.;Banday, A. J.;Bortolami, M.;Galloni, G.;Galloway, M.;Ghigna, T.;Giardiello, S.;Gomes, M.;Hivon, E.;N. Krachmalnicoff;Micheli, S.;Monelli, M.;Nagano, Y.;Novelli, A.;Patanchon, G.;Poletti, D.;Puglisi, G.;Raffuzzi, N.;Reinecke, M.;Takase, Y.;Weymann-Despres, G.;Adak, D.;Allys, E.;Aumont, J.;Aurvik, R.;Ballardini, M.;Barreiro, R. B.;Bartolo, N.;Basak, S.;M. Bersanelli;Besnard, A.;Brinckmann, T.;Calabrese, E.;Campeti, P.;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.;C. Franceschet;Fuskeland, U.;Gerbino, M.;Gervasi, M.;Gimeno-Amo, C.;Gjerløw, E.;Gruppuso, A.;Hazumi, M.;Henrot-Versillé, S.;Hergt, L. T.;Jost, B.;Kohri, K.;Lamagna, L.;Lari, T.;Lattanzi, M.;Leloup, C.;Levrier, F.;Lonappan, A. I.;López-Caniego, M.;Luzzi, G.;Macias-Perez, J.;Maffei, B.;Martínez-González, E.;Masi, S.;Matarrese, S.;Matsumura, T.;Montier, L.;Morgante, G.;Mousset, L.;Nagata, R.;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.;Tassis, K.;Terenzi, L.;Vacher, L.;van Tent, B.;Vielva, P.;Wehus, I. K.;Zannoni, M.;Zhou, Y.;null, null

2025

Abstract

Journal of Cosmology and Astroparticle Physics The International School for Advanced Studies (SISSA) logo. paper • The following article is Open access A simulation framework for the LiteBIRD instruments M. Tomasi, L. Pagano, A. Anand, C. Baccigalupi, A.J. Banday, M. Bortolami, G. Galloni, M. Galloway, T. Ghigna, S. Giardiello Published 13 November 2025 • © 2025 The Author(s) Journal of Cosmology and Astroparticle Physics, Volume 2025, November 2025Citation M. Tomasi et al JCAP11(2025)040DOI 10.1088/1475-7516/2025/11/040 Download Article PDF Download PDF Article metrics 93 Total downloads Share this article Abstract LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission focused on primordial cosmology and fundamental physics. In this paper, we present the LiteBIRD Simulation Framework (LBS), a Python package designed for the implementation of pipelines that model the outputs of the data acquisition process from the three instruments on the LiteBIRD spacecraft: LFT (Low-Frequency Telescope), MFT (Mid-Frequency Telescope), and HFT (High-Frequency Telescope). LBS provides several modules to simulate the scanning strategy of the telescopes, the measurement of realistic polarized radiation coming from the sky (including the Cosmic Microwave Background itself, the Solar and Kinematic dipole, and the diffuse foregrounds emitted by the Galaxy), the generation of instrumental noise and the effect of systematic errors, like pointing wobbling, non-idealities in the Half-Wave Plate, et cetera. Additionally, we present the implementation of a simple but complete pipeline that showcases the main features of LBS. We also discuss how we ensured that LBS lets people develop pipelines whose results are accurate and reproducible. A full end-to-end pipeline has been developed using LBS to characterize the scientific performance of the LiteBIRD experiment. This pipeline and the results of the first simulation run are presented in Puglisi et al. (2025).

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Scheda completa (DC)

	Parole chiave
	
				cmb; simulations;
			
	Settori scientifico-disciplinari dell'articolo (validi dal 09/05/2024)
	
				Settore PHYS-05/A - Astrofisica, cosmologia e scienza dello spazio
			
	Titolo del progetto
	
	Titolo Progetto
	
									Partecipazione italiana alla Fase A della missione LiteBIRD
								
	Acronimo
	
									LiteBIRD
								
	Nome finanziatore
	
										AGENZIA SPAZIALE ITALIANA
									
	N. Contratto
	
									2020-9-HH.0
								
	Data di pubblicazione
	
				13-nov-2025
			
	Rivista in ANCE
	
				JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
			
	DOI
	
				https://dx.doi.org/10.1088/1475-7516/2025/11/040
			
	Tipologia
	
				Article (author)
			
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				01 - Articolo su periodico

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