LiteBIRD science goals and forecasts: a full-sky measurement of gravitational lensing of the CMB

The LiteBIRD Collaboration: A.I. Lonappan et al.

Detalles Bibliográficos
Autores: Lonappan, Anto I., Diego-Palazuelos, P., Ruiz Granda, Miguel, Martínez-González, Enrique, Vielva, Patricio, Barreiro, R. Belén, Casas-Reinares, F. J., Gimeno-Amo, C., Pascual Cisneros, Guillermo, LiteBIRD Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/374199
Acceso en línea:http://hdl.handle.net/10261/374199
Access Level:acceso abierto
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dc.title.none.fl_str_mv LiteBIRD science goals and forecasts: a full-sky measurement of gravitational lensing of the CMB
title LiteBIRD science goals and forecasts: a full-sky measurement of gravitational lensing of the CMB
spellingShingle LiteBIRD science goals and forecasts: a full-sky measurement of gravitational lensing of the CMB
Lonappan, Anto I.
title_short LiteBIRD science goals and forecasts: a full-sky measurement of gravitational lensing of the CMB
title_full LiteBIRD science goals and forecasts: a full-sky measurement of gravitational lensing of the CMB
title_fullStr LiteBIRD science goals and forecasts: a full-sky measurement of gravitational lensing of the CMB
title_full_unstemmed LiteBIRD science goals and forecasts: a full-sky measurement of gravitational lensing of the CMB
title_sort LiteBIRD science goals and forecasts: a full-sky measurement of gravitational lensing of the CMB
dc.creator.none.fl_str_mv Lonappan, Anto I.
Diego-Palazuelos, P.
Ruiz Granda, Miguel
Martínez-González, Enrique
Vielva, Patricio
Barreiro, R. Belén
Casas-Reinares, F. J.
Gimeno-Amo, C.
Pascual Cisneros, Guillermo
LiteBIRD Collaboration
author Lonappan, Anto I.
author_facet Lonappan, Anto I.
Diego-Palazuelos, P.
Ruiz Granda, Miguel
Martínez-González, Enrique
Vielva, Patricio
Barreiro, R. Belén
Casas-Reinares, F. J.
Gimeno-Amo, C.
Pascual Cisneros, Guillermo
LiteBIRD Collaboration
author_role author
author2 Diego-Palazuelos, P.
Ruiz Granda, Miguel
Martínez-González, Enrique
Vielva, Patricio
Barreiro, R. Belén
Casas-Reinares, F. J.
Gimeno-Amo, C.
Pascual Cisneros, Guillermo
LiteBIRD Collaboration
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology (Japan)
Canadian Space Agency
Centre National de la Recherche Scientifique (France)
Centre National D'Etudes Spatiales (France)
German Research Foundation
Agenzia Spaziale Italiana
Istituto Nazionale di Astrofisica
Istituto Nazionale di Fisica Nucleare
European Commission
Research Council of Norway
European Research Council
Agencia Estatal de Investigación (España)
Ministerio de Ciencia, Innovación y Universidades (España)
National Science Foundation (US)
NASA
Swedish National Space Agency
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description The LiteBIRD Collaboration: A.I. Lonappan et al.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
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dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/374199
url http://hdl.handle.net/10261/374199
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dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
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spelling LiteBIRD science goals and forecasts: a full-sky measurement of gravitational lensing of the CMBLonappan, Anto I.Diego-Palazuelos, P.Ruiz Granda, MiguelMartínez-González, EnriqueVielva, PatricioBarreiro, R. BelénCasas-Reinares, F. J.Gimeno-Amo, C.Pascual Cisneros, GuillermoLiteBIRD CollaborationThe LiteBIRD Collaboration: A.I. Lonappan et al.We explore the capability of measuring lensing signals in LiteBIRD full-sky polarization maps. With a 30 arcmin beam width and an impressively low polarization noise of 2.16 μK-arcmin,LiteBIRD will be able to measure the full-sky polarization of the cosmic microwave background (CMB) very precisely. This unique sensitivity also enables the reconstruction of a nearly full-sky lensing map using only polarization data, even considering its limited capability to capture small-scale CMB anisotropies. In this paper, we investigate the ability to construct a full-sky lensing measurement in the presence of Galactic foregrounds, finding that several possible biases from Galactic foregrounds should be negligible after component separation by harmonic-space internal linear combination. We find that the signal-to-noise ratio of the lensing is approximately 40 using only polarization data measured over 80% of the sky. This achievement is comparable to Planck's recent lensing measurement with both temperature and polarization and represents a four-fold improvement over Planck's polarization-only lensing measurement. The LiteBIRD lensing map will complement the Planck lensing map and provide several opportunities for cross-correlation science, especially in the northern hemisphere.This work is supported in Japan by ISAS/JAXA for Pre-Phase A2 studies, by the acceleration program of JAXA research and development directorate, by the World Premier International Research Center Initiative (WPI) of MEXT, by the JSPS Core-to-Core Program of A. Advanced Research Networks, and by JSPS KAKENHI Grant Numbers JP15H05891, JP17H01115, and JP17H01125. The Canadian contribution is supported by the Canadian Space Agency. The French LiteBIRD phase A contribution is supported by the Centre National d’Etudes Spatiale (CNES), by the Centre National de la Recherche Scientifique (CNRS), and by the Commissariat à l’Energie Atomique (CEA). The German participation in LiteBIRD is supported in part by the Excellence Cluster ORIGINS, which is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy (Grant No. EXC-2094-390783311). The Italian LiteBIRD phase A contribution is supported by the Italian Space Agency (ASI Grants No. 2020-9-HH.0 and 2016-24-H.1-2018), the National Institute for Nuclear Physics (INFN) and the National Institute for Astrophysics (INAF). Norwegian participation in LiteBIRD is supported by the Research Council of Norway (Grant No. 263011) and has received funding from the European Research Council (ERC) under the Horizon 2020 Research and Innovation Programme (Grant agreement No. 772253 and 819478). The Spanish LiteBIRD phase A contribution is supported by the Spanish Agencia Estatal de Investigación (AEI), project refs. PID2019-110610RB-C21, PID2020-120514GB-I00, ProID2020010108 and ICTP20210008. Funds that support contributions from Sweden come from the Swedish National Space Agency (SNSA/Rymdstyrelsen) and the Swedish Research Council (Reg. no. 2019-03959). The US contribution is supported by NASAgrant no. 80NSSC18K0132. We also acknowledge the support from H2020-MSCA-RISE2020 European grant (Marie Sklodowska-Curie Research and Innovation Staff Exchange), JSPS KAKENHI Grant No. JP20H05859 and No. JP22K03682. This research used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility located at Lawrence Berkeley National Laboratory.Peer reviewedIOP PublishingJapan Society for the Promotion of ScienceMinistry of Education, Culture, Sports, Science and Technology (Japan)Canadian Space AgencyCentre National de la Recherche Scientifique (France)Centre National D'Etudes Spatiales (France)German Research FoundationAgenzia Spaziale ItalianaIstituto Nazionale di AstrofisicaIstituto Nazionale di Fisica NucleareEuropean CommissionResearch Council of NorwayEuropean Research CouncilAgencia Estatal de Investigación (España)Ministerio de Ciencia, Innovación y Universidades (España)National Science Foundation (US)NASASwedish National Space AgencyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/374199reponame:DIGITAL.CSIC. 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