Validating dark energy models using the polarized Sunyaev-Zel’dovich effect with large-angle CMB temperature and E-mode polarization anisotropies

Hiroto Kondo, Kiyotomo Ichiki, Hiroyuki Tashiro, and Kenji Hasegawa
Phys. Rev. D 107, 103508 – Published 9 May 2023

Abstract

The tomography of the polarized Sunyaev-Zeldvich effect due to free electrons of galaxy clusters can be used to constrain the nature of dark energy because Cosmic Microwave Background quadrupoles at different redshifts as the polarization source are sensitive to the Integrated Sachs-Wolfe effect. Here we show that the low multipoles of the temperature and E-mode polarization anisotropies from the all-sky CMB can improve the constraint further through the correlation between them and the CMB quadrupoles viewed from the galaxy clusters. Using a Monte Carlo simulation, we find that low multipoles of the temperature and E-mode polarization anisotropies potentially improve the constraint on the equation of state of dark energy parameter by about 17 percent.

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  • Received 6 January 2023
  • Accepted 17 April 2023

DOI:https://doi.org/10.1103/PhysRevD.107.103508

© 2023 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Hiroto Kondo1,*, Kiyotomo Ichiki1,2,3, Hiroyuki Tashiro1,4, and Kenji Hasegawa1

  • 1Graduate School of Science, Division of Particle and Astrophysical Science, Nagoya University, Chikusa-Ku, Nagoya, Aichi 464-8602, Japan
  • 2Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Chikusa-Ku, Nagoya, Aichi 464-8602, Japan
  • 3Institute for Advanced Research, Nagoya University, Furocho, Chikusa-Ku, Nagoya, Aichi 464-8602, Japan
  • 4Center for Education and Innovation, Sojo University, Ikeda, Nishi-ku, Kumamoto 860-0082, Japan

  • *h.kondo@nagoya-u.jp; ichiki.kiyotomo.a9@f.mail.nagoya-u.ac.jp

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Vol. 107, Iss. 10 — 15 May 2023

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