Cosmology with the CMB temperature-polarization correlation

Abstract

We demonstrate that the cosmic microwave background (CMB) temperature-polarization cross-correlation provides accurate and robust constraints on cosmological parameters. We compare them with the results from temperature or polarization and investigate the impact of foregrounds, cosmic variance, and instrumental noise. This analysis makes use of the Planck high-multipole HiLLiPOP likelihood based on angular power spectra, which takes into account systematics from the instrument and foreground residuals directly modelled using Planck measurements. The temperature-polarization correlation (TE) spectrum is less contaminated by astrophysical emissions than the temperature power spectrum (TT), allowing constraints that are less sensitive to foreground uncertainties to be derived. For ΛCDM parameters, TE gives very competitive results compared to TT. For basic ΛCDM model extensions (such as AL, Σmν, or Neff ), it is still limited by the instrumental noise level in the polarization maps.

arXiv comment15 pages, 17 figures. Accepted in A&A

References in corpus (32)

• Planck 2015 results. XIII. Cosmological parameters
• Planck 2013 results. XVI. Cosmological parameters
• Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
• Toward a halo mass function for precision cosmology: the limits of universality
• Wilkinson Microwave Anisotropy Probe (WMAP) First Year Observations: TE Polarization
• MASTER of the CMB Anisotropy Power Spectrum: A Fast Method for Statistical Analysis of Large and Complex CMB Data Sets
• Planck 2015 results. XI. CMB power spectra, likelihoods, and robustness of parameters
• Planck 2013 results. XV. CMB power spectra and likelihood
• Planck intermediate results. XIX. An overview of the polarized thermal emission from Galactic dust
• Planck 2013 results. XXX. Cosmic infrared background measurements and implications for star formation
• Planck 2015 results. VIII. High Frequency Instrument data processing: Calibration and maps
• A unified empirical model for infrared galaxy counts based on observed physical evolution of distant galaxies
• Planck intermediate results. XXX. The angular power spectrum of polarized dust emission at intermediate and high Galactic latitudes
• Planck 2013 results. XIII. Galactic CO emission
• Planck intermediate results. XXII. Frequency dependence of thermal emission from Galactic dust in intensity and polarization
• Planck 2013 results. IX. HFI spectral response
• The Atacama Cosmology Telescope: CMB Polarization at $200<\ell <9000$
• Xspect, estimation of the angular power spectrum by computing cross-power spectra with analytical error bars
• Planck 2015 results. XXIII. The thermal Sunyaev-Zeldovich effect--cosmic infrared background correlation
• High--frequency predictions for number counts and spectral properties of extragalactic radio sources. New evidences of a break at mm wavelengths in spectra of bright blazar sources
• Deconstructing the kinetic SZ Power Spectrum
• CMB Polarization can constrain cosmology better than CMB temperature
• Predictions on high frequency polarization properties of extragalactic radio sources and implications for CMB polarization measurements
• Reionization on Large Scales III: Predictions for Low-ell Cosmic Microwave Background Polarization and High-ell Kinetic Sunyaev-Zel'dovich Observables
• Limits on the detectability of the CMB B-mode polarization imposed by foregrounds
• Hybrid Estimation of CMB Polarization Power Spectra
• Modelling the correlation between the thermal Sunyaev Zel'dovich effect and the cosmic infrared background
• Measurements of E-Mode Polarization and Temperature-E-Mode Correlation in the Cosmic Microwave Background from 100 Square Degrees of SPTpol Data
• The impact of polarized extragalactic radio sources on the detection of CMB anisotropies in polarization
• Large-scale CMB temperature and polarization cross-spectra likelihoods
• Relieving tensions related to the lensing of CMB temperature power spectra
• A Simple Empirically Motivated Template for the Unresolved Thermal Sunyaev-Zeldovich Effect

Cited by in corpus (22)

• Improved limits on the tensor-to-scalar ratio using BICEP and Planck
• CMB power spectra and cosmological parameters from Planck PR4 with CamSpec
• Cosmological parameters derived from the final (PR4) Planck data release
• Planck constraints on the tensor-to-scalar ratio
• Updated constraints on amplitude and tilt of the tensor primordial spectrum
• Cosmological constraints on the neutrino mass including systematic uncertainties
• Cosmic shear power spectra in practice
• Disconnected pseudo-$C_{\ell }$ covariances for projected large-scale structure data
• Fast and Credible Likelihood-Free Cosmology with Truncated Marginal Neural Ratio Estimation
• New constraint on the tensor-to-scalar ratio from the $Planck$ and BICEP/Keck Array data using the profile likelihood
• Observational constraints on early dark energy
• Impact of the Hubble tension on the $r$-$n_s$ contour
• Cluster counts: calibration issue or new physics?
• In-flight polarization angle calibration for LiteBIRD: blind challenge and cosmological implications
• The Atacama Cosmology Telescope: Map-Based Noise Simulations for DR6
• Constraining gravity with a new precision $E_G$ estimator using Planck + SDSS BOSS
• Constraining the galaxy-halo connection of infrared-selected unWISE galaxies with galaxy clustering and galaxy-CMB lensing power spectra
• The Atacama Cosmology Telescope: Semi-Analytic Covariance Matrices for the DR6 CMB Power Spectra
• Comparison of results on $N_{\mathrm{eff}}$ from various Planck likelihoods
• Galactic foreground constraints on primordial $B$-mode detection for ground-based experiments
• Cosmology with Planck T-E correlation coefficient
• Bias on Tensor-to-Scalar Ratio Inference With Estimated Covariance Matrices