Article Dans Une Revue Journal of Cosmology and Astroparticle Physics Année : 2022

Polarization angle requirements for CMB B-mode experiments. Application to the LiteBIRD satellite

1 IFCA - Instituto de Física de Cantabria
2 UTIAS | Kavli IPMU - Kavli Institute for the Physics and Mathematics of the Universe [The University of Tokyo]
3 IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
4 Max Planck Institute for Astrophysics
5 IRAP - Institut de recherche en astrophysique et planétologie
6 UiO - University of Oslo
7 SISSA / ISAS - Scuola Internazionale Superiore di Studi Avanzati = International School for Advanced Studies [Trieste]
8 INFN, Sezione di Trieste - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
9 Unipd - Università degli Studi di Padova = University of Padua
10 INFN, Sezione di Padova - Istituto Nazionale di Fisica Nucleare, Sezione di Padova
11 OAPD - INAF - Osservatorio Astronomico di Padova
12 Cardiff University
13 UC Berkeley - University of California [Berkeley]
14 LBNL - Lawrence Berkeley National Laboratory [Berkeley]
15 UNIROMA - Università degli Studi di Roma "La Sapienza" = Sapienza University [Rome]
16 High energy accelerator research organization - KEK
17 UC / UniCan - Universidad de Cantabria [Santander] = University of Cantabria [Spain] = Université de Cantabrie [Espagne]
18 APC (UMR_7164) - AstroParticule et Cosmologie
19 UNIMI - Università degli Studi di Milano = University of Milan
20 UNIMIB - Università degli Studi di Milano-Bicocca = University of Milano-Bicocca
21 IAC - Instituto de Astrofisica de Canarias
22 ULL - Universidad de La Laguna [Tenerife - SP]
23 University of Oxford
24 IAP - Institut d'Astrophysique de Paris
25 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
26 IAS - Institut d'astrophysique spatiale
27 Astrophysique
S. Della Torre
  • Fonction : Auteur
M. Galloway
T. Ghigna
  • Fonction : Auteur
E. Gjerløw
  • Fonction : Auteur
A. Gruppuso
  • Fonction : Auteur
M. Hazumi
  • Fonction : Auteur
D. Herranz
  • Fonction : Auteur
K. Kohri
  • Fonction : Auteur
L. Lamagna
  • Fonction : Auteur
S. Masi
  • Fonction : Auteur
F.T. Matsuda
  • Fonction : Auteur
G. Morgante
  • Fonction : Auteur
R. Nakano
  • Fonction : Auteur
F. Nati
P. Natoli
  • Fonction : Auteur
S. Nerval
  • Fonction : Auteur
K. Odagiri
  • Fonction : Auteur
S. Oguri
  • Fonction : Auteur
A. Paiella
  • Fonction : Auteur
D. Paoletti
  • Fonction : Auteur
F. Piacentini
  • Fonction : Auteur
G. Polenta
  • Fonction : Auteur
G. Puglisi
  • Fonction : Auteur
M. Remazeilles
  • Fonction : Auteur
J.A. Rubino-Martin
  • Fonction : Auteur
D. Scott
  • Fonction : Auteur
Y. Sekimoto
  • Fonction : Auteur
M. Shiraishi
  • Fonction : Auteur
G. Signorelli
  • Fonction : Auteur
H. Takakura
  • Fonction : Auteur
A. Tartari
  • Fonction : Auteur
K.L. Thompson
  • Fonction : Auteur
N. Vittorio
  • Fonction : Auteur
I.K. Wehus
  • Fonction : Auteur
M. Zannoni
  • Fonction : Auteur

Résumé

A methodology to provide the polarization angle requirements for different sets of detectors, at a given frequency of a CMB polarization experiment, is presented. The uncertainties in the polarization angle of each detector set are related to a given bias on the tensor-to-scalar ratio r parameter. The approach is grounded in using a linear combination of the detector sets to obtain the CMB polarization signal. In addition, assuming that the uncertainties on the polarization angle are in the small angle limit (lower than a few degrees), it is possible to derive analytic expressions to establish the requirements. The methodology also accounts for possible correlations among detectors, that may originate from the optics, wafers, etc. The approach is applied to the LiteBIRD space mission. We show that, for the most restrictive case (i.e., full correlation of the polarization angle systematics among detector sets), the requirements on the polarization angle uncertainties are of around 1 arcmin at the most sensitive frequency bands (i.e., ≈ 150 GHz) and of few tens of arcmin at the lowest (i.e., ≈ 40 GHz) and highest (i.e., ≈ 400 GHz) observational bands. Conversely, for the least restrictive case (i.e., no correlation of the polarization angle systematics among detector sets), the requirements are ≈ 5 times less restrictive than for the previous scenario. At the global and the telescope levels, polarization angle knowledge of a few arcmins is sufficient for correlated global systematic errors and can be relaxed by a factor of two for fully uncorrelated errors in detector polarization angle. The reported uncertainty levels are needed in order to have the bias on r due to systematics below the limit established by the LiteBIRD collaboration.

Dates et versions

hal-03583164 , version 1 (21-02-2022)

Identifiants

Citer

P. Vielva, E. Martínez-González, F.J. Casas, T. Matsumura, S. Henrot-Versillé, et al.. Polarization angle requirements for CMB B-mode experiments. Application to the LiteBIRD satellite. Journal of Cosmology and Astroparticle Physics, 2022, 04 (04), pp.029. ⟨10.1088/1475-7516/2022/04/029⟩. ⟨hal-03583164⟩
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