Cross-correlation between thermal Sunyaev-Zeldovich effect and the integrated Sachs-Wolfe effect

Abstract

Large-angle fluctuations in the cosmic microwave background temperature induced by the integrated Sachs-Wolfe effect and Compton-y distortions from the thermal Sunyaev-Zeldovich (tSZ) effect are both due to line-of-sight density perturbations. Here we calculate the cross-correlation between these two signals. Measurement of this cross-correlation can be used to test the redshift distribution of the tSZ distortion, which has implications for the redshift at which astrophysical processes in clusters begin to operate. We also evaluate the detectability of a yT cross-correlation from exotic early-Universe sources in the presence of this late-time effect.

5 pages, 3 figures, published in PRD

References in corpus (1)

• Probing the scale dependence of non-Gaussianity with spectral distortions of the cosmic microwave background

Cited by in corpus (10)

• Foreground Biases on Primordial Non-Gaussianity Measurements from the CMB Temperature Bispectrum: Implications for Planck and Beyond
• Evolution of CMB spectral distortion anisotropies and tests of primordial non-Gaussianity
• Extracting foreground-obscured $\mu$-distortion anisotropies to constrain primordial non-Gaussianity
• Primordial non-Gaussianity with $\mu$-type and $y$-type spectral distortions: exploiting Cosmic Microwave Background polarization and dealing with secondary sources
• Correlating CMB Spectral Distortions with Temperature: what do we learn on Inflation?
• Constraining cosmology with the cosmic microwave and infrared backgrounds correlation
• The Integrated Sachs-Wolfe Effect in Interacting Dark Matter-Dark Energy Models
• Exploring compensated isocurvature perturbations with CMB spectral distortion anisotropies
• Probing the Running of Primordial Bispectrum and Trispectrum using CMB Spectral Distortions
• Constraining Quintessence Models with ISW-tSZ Cross-Correlations: A Comparative Analysis of Thawing, Tracker, and Scaling-Freezing Dynamics