Overview of the medium and high frequency telescopes of the LiteBIRD space mission
Ludovic MontierIRAP, Universit de Toulouse, CNRS, CNES, UPS, (Toulouse), FranceBaptiste MotIRAP, Universit de Toulouse, CNRS, CNES, UPS, (Toulouse), FrancePaolo de BernardisDipartimento di Fisica, Universit La Sapienza, P. le A. Moro 2, Roma, Italy andBruno MaffeiInstitut d'Astrophysique Spatiale (IAS), CNRS, UMR 8617, Universit Paris-Sud 11, Btiment 121, 91405 Orsay, FranceGiampaolo PisanoFabio ColumbroDipartimento di Fisica, Universit La Sapienza, P. le A. Moro 2, Roma, Italy andJon E. GudmundssonStockholm UniversitySophie Henrot-VersilléLuca LamagnaDipartimento di Fisica, Universit La Sapienza, P. le A. Moro 2, Roma, Italy andJoshua MontgomeryMcGill University, Physics Department, Montreal, QC H3A 0G4, CanadaThomas ProuvéMegan RussellUniversity of California, San Diego, Department of Physics, San Diego, CA 92093-0424, USAGiorgio SaviniOptical Science Laboratory, Physics and Astronomy Dept., University College London (UCL)Samantha SteverKavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, JapanKeith L. ThompsonSLAC National Accelerator Laboratory, Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), Menlo Park, CA 94025, USAMasahiro TsujimotoJapan Aerospace Exploration Agency (JAXA), Institute of Space and Astronautical Science (ISAS), Sagamihara, Kanagawa 252-5210, JapanCarole TuckerCardiff University, School of Physics and Astronomy, Cardiff CF10 3XQ, UKBenjamin WestbrookUniversity of California, Berkeley, Department of Physics, Berkeley, CA 94720, USAPeter A. AdeCardiff University, School of Physics and Astronomy, Cardiff CF10 3XQ, UKAlexandre AdlerStockholm UniversityErwan AllysLaboratoire de Physique de l' cole Normale Suprieure, ENS, Universit PSL, CNRS, Sorbonne Universit, Universit de Paris, 75005 Paris, FranceKam ArnoldUniversity of California, San Diego, Department of Physics, San Diego, CA 92093-0424, USADidier AugusteUniversit Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, FranceJonathan AumontIRAP, Universit de Toulouse, CNRS, CNES, UPS, (Toulouse), FranceRagnhild AurlienUniversity of Oslo, Institute of Theoretical Astrophysics, NO-0315 Oslo, NorwayJason AustermannNational Institute of Standards and Technology (NIST), Boulder, Colorado 80305, USACarlo BaccigalupiInternational School for Advanced Studies (SISSA), Via Bonomea 265, 34136, Trieste, ItalyAnthony J. BandayIRAP, Universit de Toulouse, CNRS, CNES, UPS, (Toulouse), FranceRanajoy BanerjiUniversity of Oslo, Institute of Theoretical Astrophysics, NO-0315 Oslo, NorwayRita B. BarreiroSoumen BasakJim BeallNational Institute of Standards and Technology (NIST), Boulder, Colorado 80305, USADominic BeckStanford University, Department of Physics, CA 94305-4060, USAShawn BeckmanUniversity of California, Berkeley, Department of Physics, Berkeley, CA 94720, USAJuan BermejoMarco BersanelliJulien BonisUniversité Paris-SaclayJulian BorrillFrancois BoulangerLaboratoire de Physique de l' cole Normale Suprieure, ENS, Universit PSL, CNRS, Sorbonne Universit, Universit de Paris, 75005 Paris, FranceSophie BounissouInstitut d'Astrophysique Spatiale (IAS), CNRS, UMR 8617, Universit Paris-Sud 11, Btiment 121, 91405 Orsay, FranceMaksym BrilenkovUniversity of Oslo, Institute of Theoretical Astrophysics, NO-0315 Oslo, NorwayMichael BrownMartin BucherErminia CalabreseCardiff University, School of Physics and Astronomy, Cardiff CF10 3XQ, UKPaolo CampetiInternational School for Advanced Studies (SISSA), Via Bonomea 265, 34136, Trieste, ItalyAlessandro CaronesFrancisco J. CasasAnthony ChallinorVictor ChanKolen CheungUniversity of California, Berkeley, Department of Physics, Berkeley, CA 94720, USAYuji ChinoneJean F. ClicheMcGill University, Physics Department, Montreal, QC H3A 0G4, CanadaLoris ColomboJavier CubasAri CukiermanStanford University, Department of Physics, CA 94305-4060, USADavid CurtisGiuseppe D'AlessandroDipartimento di Fisica, Universit La Sapienza, P. le A. Moro 2, Roma, Italy andNadia DachlythraStockholm UniversityMarco De PetrisDipartimento di Fisica, Universit La Sapienza, P. le A. Moro 2, Roma, Italy andClive DickinsonPatricia Diego-PalazuelosMatt DobbsMcGill University, Physics Department, Montreal, QC H3A 0G4, CanadaTadayasu DotaniJapan Aerospace Exploration Agency (JAXA), Institute of Space and Astronautical Science (ISAS), Sagamihara, Kanagawa 252-5210, JapanLionel DubandUniv. Grenoble Alpes, CEA, IRIG-DSBT, 38000 Grenoble, FranceShannon DuffNational Institute of Standards and Technology (NIST), Boulder, Colorado 80305, USAJean M. DuvalUniv. Grenoble Alpes, CEA, IRIG-DSBT, 38000 Grenoble, FranceKen EbisawaJapan Aerospace Exploration Agency (JAXA), Institute of Space and Astronautical Science (ISAS), Sagamihara, Kanagawa 252-5210, JapanTucker ElleflotHans K. EriksenUniversity of Oslo, Institute of Theoretical Astrophysics, NO-0315 Oslo, NorwayJosquin ErrardThomas Essinger-HilemanFabio FinelliRaphael FlaugerUniversity of California, San Diego, Department of Physics, San Diego, CA 92093-0424, USACristian FranceschetUnni FuskelandUniversity of Oslo, Institute of Theoretical Astrophysics, NO-0315 Oslo, NorwayMathew GallowayUniversity of Oslo, Institute of Theoretical Astrophysics, NO-0315 Oslo, NorwayKen GangaJian R. GaoRicardo Genova-SantosMartina GerbinoMassimo GervasiTommaso GhignaKavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, JapanEirik GjerløwUniversity of Oslo, Institute of Theoretical Astrophysics, NO-0315 Oslo, NorwayMarcin L. GradzielJulien GrainInstitut d'Astrophysique Spatiale (IAS), CNRS, UMR 8617, Universit Paris-Sud 11, Btiment 121, 91405 Orsay, FranceFrank GruppAlessandro GruppusoTijmen de HaanNils W. HalversonPeter HargraveCardiff University, School of Physics and Astronomy, Cardiff CF10 3XQ, UKTakashi HasebeJapan Aerospace Exploration Agency (JAXA), Institute of Space and Astronautical Science (ISAS), Sagamihara, Kanagawa 252-5210, JapanMasaya HasegawaMakoto HattoriMasashi HazumiJapan Aerospace Exploration Agency (JAXA), Institute of Space and Astronautical Science (ISAS), Sagamihara, Kanagawa 252-5210, JapanDaniel HermanUniversity of Oslo, Institute of Theoretical Astrophysics, NO-0315 Oslo, NorwayDiego HerranzCharles A. HillUniversity of California, Berkeley, Department of Physics, Berkeley, CA 94720, USAGene HiltonNational Institute of Standards and Technology (NIST), Boulder, Colorado 80305, USAYukimasa HirotaEric Hivon
ABI
Аннотация
LiteBIRD is a JAXA-led Strategic Large-Class mission designed to search for the existence of the primordial gravitational waves produced during the inflationary phase of the Universe, through the measurements of their imprint onto the polarization of the cosmic microwave background (CMB). These measurements, requiring unprecedented sensitivity, will be performed over the full sky, at large angular scales, and over 15 frequency bands from 34 GHz to 448 GHz. The LiteBIRD instruments consist of three telescopes, namely the Low-, Medium-and High-Frequency Telescope (respectively LFT, MFT and HFT). We present in this paper an overview of the design of the Medium-Frequency Telescope (89{224 GHz) and the High-Frequency Telescope (166{448 GHz), the so-called MHFT, under European responsibility, which are two cryogenic refractive telescopes cooled down to 5 K. They include a continuous rotating half-wave plate as the first optical element, two high-density polyethylene (HDPE) lenses and more than three thousand transition-edge sensor (TES) detectors cooled to 100 mK. We provide an overview of the concept design and the remaining specific challenges that we have to face in order to achieve the scientific goals of LiteBIRD.
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