Published January 17, 2022 | Version Published + Accepted Version
Journal Article Open

Crab nebula at 260 GHz with the NIKA2 polarimeter: Implications for the polarization angle calibration of future CMB experiments

  • 1. ROR icon University of Paris-Saclay
  • 2. ROR icon Laboratoire de Physique de l'ENS de Lyon
  • 3. ROR icon École Polytechnique
  • 4. ROR icon Cardiff University
  • 5. ROR icon Astrophysique, Instrumentation et Modélisation
  • 6. ROR icon Grenoble Institute of Technology
  • 7. ROR icon Research Institute in Astrophysics and Planetology
  • 8. ROR icon Institut Néel
  • 9. ROR icon International Research Institute for Radio Astronomy
  • 10. ROR icon Aix-Marseille University
  • 11. ROR icon Sapienza University of Rome
  • 12. ROR icon Institut de Planétologie et d'Astrophysique de Grenoble
  • 13. ROR icon Centro de Astrobiología
  • 14. ROR icon Instituto de Radioastronomía Milimétrica
  • 15. ROR icon Arizona State University
  • 16. ROR icon University of Pennsylvania
  • 17. ROR icon Institut d'Astrophysique de Paris
  • 18. ROR icon Massachusetts Institute of Technology
  • 19. ROR icon California Institute of Technology

Abstract

The quest for primordial gravitational waves enclosed in the Cosmic Microwave Background (CMB) polarization B-modes signal motivates the development of a new generation of high sensitive experiments (e.g. CMBS4, LiteBIRD), thus allowing to probe the inflationary epoch in the early Universe. However, this will be only possible by ensuring a high control of the instrumental systematic effects and an accurate absolute calibration of the polarization angle. The Crab nebula is known to be a polarization calibrator on the sky for CMB experiments. Already used for the Planck satellite it exhibits a high polarized signal at microwave wavelengths. In this work we present Crab polarization observations obtained, in the 260 GHz frequency band, with the NIKA2 instrument. Furthermore, we discuss the accuracy needed on such a measurement to improve the constraints on the absolute angle calibration for CMB experiments.

Additional Information

© The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/). Published online: 17 January 2022. We would like to thank the IRAM staff for their support during the campaigns. The NIKA2 dilution cryostat has been designed and built at the Institut Néel. In particular, we acknowledge the crucial contribution of the Cryogenics Group, and in particular Gregory Garde, Henri Rodenas, Jean Paul Leggeri, Philippe Camus. This work has been partially funded by the Foundation Nanoscience Grenoble and the LabEx FOCUS ANR-11-LABX-0013. This work is supported by the French National Research Agency under the contracts "MKIDS", "NIKA" and ANR-15-CE31-0017 and in the framework of the "Investissements d'avenir" program (ANR-15-IDEX-02). This work has benefited from the support of the European Research Council Advanced Grant ORISTARS under the European Union's Seventh Framework Programme (Grant Agreement no. 291294). F.R. acknowledges financial supports provided by NASA through SAO Award Number SV2-82023 issued by the Chandra X-Ray Observatory Center, which is operated by the Smithsonian Astrophysical Observatory for and on behalf of NASA under contract NAS8-03060.

Attached Files

Published - epjconf_mmUniverse2021_00042.pdf

Accepted Version - 2111.02143.pdf

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Additional details

Identifiers

Eprint ID
113217
Resolver ID
CaltechAUTHORS:20220202-767782300

Related works

Funding

Agence Nationale pour la Recherche (ANR)
ANR-11-LABX-0013
Agence Nationale pour la Recherche (ANR)
ANR-15-CE31-0017
Agence Nationale pour la Recherche (ANR)
ANR-15-IDEX-02
European Research Council (ERC)
291294
NASA
SV2-82023
NASA
NAS8-03060

Dates

Created
2022-02-02
Created from EPrint's datestamp field
Updated
2022-02-02
Created from EPrint's last_modified field