CaltechAUTHORS
Published June 2021 | Version Submitted + Published
Journal Article Open

Microwave spectro-polarimetry of matter and radiation across space and time

Creators

  • 1. ROR icon University of Paris
  • 2. ROR icon Institut de Recherche sur les Lois Fondamentales de l'Univers
  • 3. ROR icon University of Oxford
  • 4. ROR icon University of Paris-Saclay
  • 5. ROR icon New York University
  • 6. ROR icon Cardiff University
  • 7. ROR icon University of California, Berkeley
  • 8. ROR icon Lawrence Berkeley National Laboratory
  • 9. ROR icon Research Institute in Astrophysics and Planetology
  • 10. ROR icon Jet Propulsion Lab
  • 11. ROR icon Delft University of Technology
  • 12. ROR icon Netherlands Institute for Space Research
  • 13. ROR icon University of Bonn
  • 14. ROR icon Cornell University
  • 15. ROR icon University of Barcelona
  • 16. ROR icon French National Centre for Scientific Research
  • 17. ROR icon University of Manchester
  • 18. ROR icon Istituto di Radioastronomia di Bologna
  • 19. ROR icon Osservatorio Astronomico di Padova
  • 20. ROR icon Institut d'Astrophysique de Paris
  • 21. ROR icon Canadian Institute for Theoretical Astrophysics
  • 22. ROR icon University of Science and Technology of China
  • 23. ROR icon Max Planck Institute for Astrophysics
  • 24. ROR icon Space Research Institute
  • 25. ROR icon Instituto de Astrofísica de Canarias
  • 26. ROR icon Sapienza University of Rome
  • 27. ROR icon INFN Sezione di Roma I
  • 28. ROR icon UNSW Sydney
  • 29. ROR icon University of Maryland, College Park
  • 30. ROR icon University of Minnesota
  • 31. ROR icon Centro de Estudios de Física del Cosmos de Aragón
  • 32. ROR icon Institute for Advanced Study
  • 33. ROR icon Imperial College London
  • 34. ROR icon University of Chicago
  • 35. ROR icon Harvard-Smithsonian Center for Astrophysics
  • 36. ROR icon Goddard Space Flight Center
  • 37. ROR icon High Energy Accelerator Research Organization
  • 38. ROR icon Ben-Gurion University of the Negev
  • 39. ROR icon RWTH Aachen University
  • 40. ROR icon Perimeter Institute
  • 41. ROR icon University of Ferrara
  • 42. ROR icon Centre for Astrophysics of the University of Porto
  • 43. ROR icon Institute of Astrophysics and Space Sciences
  • 44. ROR icon University of Geneva
  • 45. ROR icon Harvard University
  • 46. ROR icon European Southern Observatory
  • 47. ROR icon Yale University
  • 48. ROR icon University of California, Los Angeles
  • 49. ROR icon University of La Laguna
  • 50. ROR icon California Institute of Technology
  • 51. ROR icon University of British Columbia
  • 52. ROR icon Johns Hopkins University
  • 53. ROR icon University of Oslo
  • 54. ROR icon Indian Institute of Science Education and Research Pune
  • 55. ROR icon National Astronomical Observatory of Japan
  • 56. ROR icon INFN Sezione di Pisa
  • 57. ROR icon University of Cambridge

Abstract

This paper discusses the science case for a sensitive spectro-polarimetric survey of the microwave sky. Such a survey would provide a tomographic and dynamic census of the three-dimensional distribution of hot gas, velocity flows, early metals, dust, and mass distribution in the entire Hubble volume, exploit CMB temperature and polarisation anisotropies down to fundamental limits, and track energy injection and absorption into the radiation background across cosmic times by measuring spectral distortions of the CMB blackbody emission. In addition to its exceptional capability for cosmology and fundamental physics, such a survey would provide an unprecedented view of microwave emissions at sub-arcminute to few-arcminute angular resolution in hundreds of frequency channels, a data set that would be of immense legacy value for many branches of astrophysics. We propose that this survey be carried out with a large space mission featuring a broad-band polarised imager and a moderate resolution spectro-imager at the focus of a 3.5 m aperture telescope actively cooled to about 8K, complemented with absolutely-calibrated Fourier Transform Spectrometer modules observing at degree-scale angular resolution in the 10–2000 GHz frequency range. We propose two observing modes: a survey mode to map the entire sky as well as a few selected wide fields, and an observatory mode for deeper observations of regions of specific interest.

Additional Information

© The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. Received 29 July 2020; Accepted 02 March 2021; Published 03 July 2021. This work has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement No 725456, CMBSPEC) as well as the Royal Society (grants UF130435 and RG140523). JARM acknowledges financial support from the Spanish Ministry of Science and Innovation (MICINN) under the project AYA2017-84185-P, and from the European Union's Horizon 2020 research and innovation programme under Grant Agreement 687312 (RADIOFOREGROUNDS). C.H.-M. acknowledges the support of the Spanish Ministry of Science through project PGC2018-097585-B-C21. Financial support from the ASI/Physics Department of the University of Roma–Tor Vergata agreement n. 2016-24-H.0 for study activities of the Italian cosmology community is acknowledged. JLB is supported by the Allan C. and Dorothy H. Davis Fellowship, and has been supported by the Spanish MINECO under grant BES-2015-071307, co-funded by the ESF during part of the development of this work.

Attached Files

Published - Delabrouille2021_Article_MicrowaveSpectro-polarimetryOf.pdf

Submitted - 1909.01591.pdf

Files

1909.01591.pdf

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Additional details

Identifiers

Eprint ID
109828
Resolver ID
CaltechAUTHORS:20210714-222644638

Related works

Describes
https://arxiv.org/abs/1909.01591 (URL)
https://www.microwave-spectropolarimetry.eu (URL)

Funding

European Research Council (ERC)
725456
Royal Society
UF130435
Royal Society
RG140523
Ministerio de Economía, Industria y Competitividad (MINECO)
AYA2017-84185-P
European Research Council (ERC)
687312
Ministerio de Ciencia e Innovación (MCINN)
PGC2018-097585-B-C21
Agenzia Spaziale Italiana (ASI)
2016-24-H.0
Allan C. and Dorothy H. Davis Fellowship
Ministerio de Economía, Industria y Competitividad (MINECO)
BES-2015-071307

Dates

Created
2021-07-15
Created from EPrint's datestamp field
Updated
2021-10-29
Created from EPrint's last_modified field