Kavli Affiliate: Toshiya Namikawa
| First 5 Authors: Toshiya Namikawa, Ippei Obata, , ,
| Summary:
We consider the polarized Sunyaev-Zel’dovich (pSZ) effect for a tomographic
probe of cosmic birefringence, including all relevant terms of the pSZ effect
in the cosmic microwave background (CMB) observables, some of which were
ignored in the previous works. The pSZ effect produces late-time polarization
signals from the scattering of the local temperature quadrupole seen by an
electron. We forecast the expected constraints on cosmic birefringence at the
late time of the universe with the pSZ effect. We find that the birefringence
angles at $2lesssim zlesssim 5$ are constrained at a subdegree level by the
cross-correlations between CMB $E$- and $B$-modes or between CMB $B$-modes and
remote quadrupole $E$-modes using data from LiteBIRD, CMB-S4, and LSST. In
particular, the cross-correlation between large-scale CMB $B$-modes and
remote-quadrupole $E$-modes has a much smaller bias from the Galactic
foregrounds and is useful to cross-check the results from the $EB$ power
spectrum.
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