Multi-dimensional optimisation of the scanning strategy for the LiteBIRD space mission

Abstract Large angular scale surveys in the absence of atmosphere are essential for measuring the primordial B-mode power spectrum of the Cosmic Microwave Background (CMB). Since this proposed measurement is about three to four orders of magnitude fainter than the temperature anisotropies of the CMB, in-flight calibration of the instruments and active suppression of systematic effects are crucial. We investigate the effect of changing the parameters of the scanning strategy on the in-flight calibration effectiveness, the suppression of the systematic effects themselves, and the ability to distinguish systematic effects by null-tests. Next-generation missions such as LiteBIRD , modulated by a Half-Wave Plate (HWP), will be able to observe polarisation using a single detector, eliminating the need to combine several detectors to measure polarisation, as done in many previous experiments and hence avoiding the consequent systematic effects. While the HWP is expected to suppress many systematic effects, some of them will remain. We use an analytical approach to comprehensively address the mitigation of these systematic effects and identify the characteristics of scanning strategies that are the most effective for implementing a variety of calibration strategies in the multi-dimensional space of common spacecraft scan parameters. We verify that LiteBIRD 's standard configuration yields good performance on the metrics we studied. We also present Falcons.jl , a fast spacecraft scanning simulator that we developed to investigate this scanning parameter space.

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Publication Details

Journal
Journal of Cosmology and Astroparticle Physics
Published
2024-12-01
DOI
https://doi.org/10.1088/1475-7516/2024/12/036
Citations
2
Primary Topic
Cosmology and Gravitation Theories
Type
article
Field-Weighted Citation Impact
0.66

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article

Multi-dimensional optimisation of the scanning strategy for the LiteBIRD space mission

Y. Sakurai, Yutaro Sekímoto, M. Ballardini, P. Diego-Palazuelos et al.
2 citations
Journal of Cosmology and Astroparticle Physics
Cosmology and Gravitation Theories
0.66
article

Multi-dimensional optimisation of the scanning strategy for the LiteBIRD space mission

Y. Sakurai, Yutaro Sekímoto, M. Ballardini, P. Diego-Palazuelos, T. de Haan, L. T. Hergt, Maresuke Shiraishi, M. Monelli, B. Westbrook, B. Mot, Takeshi Matsumura, W. Wang, D. Scott, C. Leloup, L. Porcelli, Lionel Clermont, F. Matsuda, T. Ghigna, S. Matarrese, D. Paoletti, Kaoru Ikuma, Yanqiu Zhou, M. Ruiz-Granda, F. Piacentini, L. Terenzi, S. Oguri, Kimiko KOHRI, F. J. Casas, M Tomasi, Toshiya Namikawa, P. Vielva, P. Campeti, E. de la Hoz, M. Lattanzi, G. Signorelli, M. Galloway, A. Carones, S. Micheli, M. López-Caniego, S. L. Stever, G. Weymann-Despres, G. Morgante, G. D’Alessandro, A. Coppolecchia, C Baccigalupi, Maria Lembo, M Zannoni, A. Ritacco, M. Migliaccio, Kimihide Odagiri, F. Columbro, M. Bortolami, F. Cuttaia, R. B. Barreiro, B. Van Tent, Michele Pinchera, I. K. Wehus, H. Ishino, M. Remazeilles, H. K. Eriksen, P. de Bernardis, Erminia Calabrese, S Henrot-Versillé, Kiyoharu Aizawa, Anil Chandra Anand, M. Hazumi, S. Giardiello, F. Finelli⋆, Kmc Cheung, Luca Pagano, U Fuskeland, J. Aumont, Josquin Errard, Andrea Novelli, L. Vacher, G. Galloni, Edward J. Wollack, Yukio Nagano, N. Raffuzzi, M. Gervasi, E. Martínez-González, T Brinckmann, S. Della Torre, C. Gimeno-Amo, E. Carinos, A.I. Lonappan, R. M. Sullivan, R. Omae, G. Luzzi, E. Gjerløw, M. Tristram, S. Basak, G. Patanchon, M. Bersanelli, L. Montier, N. Bartolo, G Polenta, Ryo Nagata, F. Levrier, A. J. Banday, Hiroki Takakura, Koichi ISHIZAKA, S. Masi, L. Lamagna, R. González González, B. Maffei, Y. Takase
article en
2 citations

Abstract

Abstract Large angular scale surveys in the absence of atmosphere are essential for measuring the primordial B-mode power spectrum of the Cosmic Microwave Background (CMB). Since this proposed measurement is about three to four orders of magnitude fainter than the temperature anisotropies of the CMB, in-flight calibration of the instruments and active suppression of systematic effects are crucial. We investigate the effect of changing the parameters of the scanning strategy on the in-flight calibration effectiveness, the suppression of the systematic effects themselves, and the ability to distinguish systematic effects by null-tests. Next-generation missions such as LiteBIRD , modulated by a Half-Wave Plate (HWP), will be able to observe polarisation using a single detector, eliminating the need to combine several detectors to measure polarisation, as done in many previous experiments and hence avoiding the consequent systematic effects. While the HWP is expected to suppress many systematic effects, some of them will remain. We use an analytical approach to comprehensively address the mitigation of these systematic effects and identify the characteristics of scanning strategies that are the most effective for implementing a variety of calibration strategies in the multi-dimensional space of common spacecraft scan parameters. We verify that LiteBIRD 's standard configuration yields good performance on the metrics we studied. We also present Falcons.jl , a fast spacecraft scanning simulator that we developed to investigate this scanning parameter space.

Journal of Cosmology and Astroparticle PhysicsVol. 2024(12)
University of Pisa (IT), University of Rome Tor Vergata (IT), Centre National de la Recherche Scientifique (FR), International Computer Science Institute (US), Goddard Space Flight Center (US), Universidad de Cantabria (ES), Scuola Internazionale Superiore di Studi Avanzati (IT), University of Padua (IT), High Energy Accelerator Research Organization (JP), University of British Columbia (CA), University of Trieste (IT), Lawrence Berkeley National Laboratory (US), University of Liège (BE), Istituto Nazionale di Fisica Nucleare (IT), Okayama University (JP), Kavli Institute for the Physics and Mathematics of the Universe (JP), University of Oslo (NO), University of Milan (IT), The Graduate University for Advanced Studies, SOKENDAI (JP), University of Ferrara (IT), Université Paris Cité (FR), Université Paris-Saclay (FR), Agenzia Spaziale Italiana (IT), Japan Aerospace Exploration Agency (JP), Laboratoire AstroParticule et Cosmologie (FR), University of Manchester (GB), École Normale Supérieure - PSL (FR), University of California San Diego (US), Sorbonne Université (FR), European Space Astronomy Centre (ES), Excellence Cluster Origins (DE), Institute of Particle Physics (CA), Institut d'Astrophysique Spatiale (FR), Max Planck Institute for Astrophysics (DE), Istituto Nazionale di Fisica Nucleare, Sezione di Padova (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara (IT), SKA Observatory (GB), Laboratoire de Physique de l'Ecole Normale Supérieure (FR), Instituto de Astrofísica de Canarias (ES), Institut National de Physique Nucléaire et de Physique des Particules (FR), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (FR), Institute of Space and Astronautical Science (JP), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca (IT), Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (IT), Gran Sasso Science Institute (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (IT), Institute for Fundamental Physics of the Universe (IT), Instituto de Física de Cantabria (ES), Istituto Nazionale di Fisica Nucleare, Sezione di Roma I (IT), Osservatorio Astronomico di Padova (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Pisa (IT), Suwa Red Cross Hospital (JP), Institut de Recherche en Astrophysique et Planétologie (FR), International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles, Institute of Particle and Nuclear Studies, Indian Institute of Science Education and Research Thiruvananthapuram (IN), University of Milano-Bicocca (IT), The University of Tokyo (JP), Cardiff University (GB), Sapienza University of Rome (IT), National Institute for Astrophysics (IT), Universidad Europea de Madrid (ES), University of California, Berkeley (US), University of Wales (GB)
National Aeronautics and Space Administration, European Commission, Deutsche Forschungsgemeinschaft, Abdus Salam International Centre for Theoretical Physics, Ministry of Education, Culture, Sports, Science and Technology, Swedish National Space Agency, Centro para el Desarrollo Tecnológico Industrial, Centre National d’Etudes Spatiales, Nuclear Safety and Security Commission, Vetenskapsrådet, Centre National de la Recherche Scientifique, Istituto Nazionale di Astrofisica, Norges Forskningsråd, Canadian Space Agency, Japan Society for the Promotion of Science, Japan Aerospace Exploration Agency, Agencia Estatal de Investigación, Nuclear Physics
Openalex Percentile: Top 28%
Cosmology and Gravitation Theories
0.66
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