The first direct measurement of gravitational potential decay rate at cosmological scales and improved dark energy constraint

Abstract

The integrated Sachs-Wolfe (ISW) effect probes the decay rate ($DR$) of large scale gravitational potential and therefore provides unique constraint on dark energy (DE). However its constraining power is degraded by the ISW measurement, which relies on cross-correlating with the large scale structure (LSS) and suffers from uncertainties in galaxy bias and matter clustering. In combination with lensing-LSS cross-correlation, $DR$ can be isolated in a way free of uncertainties in galaxy bias and matter clustering. We applied this proposal to the combination of the DR8 galaxy catalogue of DESI imaging surveys and Planck cosmic microwave background (CMB) maps. We achieved the first $DR$ measurement, with a total significance of $3.2\sigma$. We verified the measurements at three redshift bins ($[0.2,0.4)$, $[0.4,0.6)$, $[0.6,0.8]$), with two LSS tracers (the "low-density points" and the conventional galaxy positions). Despite its relatively low S/N, the addition of $DR$ significantly improves dark energy constraints, over SDSS baryon acoustic oscillation (BAO) data alone or Pantheon supernovae (SN) compilation alone. For flat $w$CDM cosmology, the improvement in the precision of ${\Omega }_m$ is a factor of 1.8 over BAO and 1.5 over SN. For the DE equation of state $w$, the improvement factor is 1.3 over BAO and 1.4 over SN. These improvements demonstrate $DR$ as a useful cosmological probe, and therefore we advocate its usage in future cosmological analysis.

arXiv comment9 pages, 6 figures

References in corpus (51)

• HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological Implications from two Decades of Spectroscopic Surveys at the Apache Point observatory
• Weak Gravitational Lensing of the CMB
• Cosmic Growth History and Expansion History
• Planck 2018 results. VIII. Gravitational lensing
• Planck 2015 results. XI. CMB power spectra, likelihoods, and robustness of parameters
• Mass Reconstruction with CMB Polarization
• The Dark Energy Survey Data Release 1
• Gravitational Lensing Effect on Cosmic Microwave Background Polarization
• Weak Lensing of the CMB: A Harmonic Approach
• A correlation of the cosmic microwave sky with large scale structure
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from anisotropic clustering analysis of the Quasar Sample in configuration space between redshift 0.8 and 2.2
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic correlation function between redshifts 0.6 and 1
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic power spectrum between redshifts 0.6 and 1.0
• Looking for $\Lambda$ with the Rees-Sciama Effect
• Combined analysis of the integrated Sachs-Wolfe effect and cosmological implications
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from the anisotropic power spectrum of the Quasar sample between redshift 0.8 and 2.2
• Detection of the ISW and SZ effects from the CMB-Galaxy correlation
• Cross-Correlation of the Cosmic Microwave Background with the 2MASS Galaxy Survey: Signatures of Dark Energy, Hot Gas, and Point Sources
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Dark Energy Induced Correlation with Radio Sources
• Photometric redshifts for the SDSS Data Release 12
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the emission line galaxy sample from the anisotropic power spectrum between redshift 0.6 and 1.1
• Planck 2015 results. XXI. The integrated Sachs-Wolfe effect
• Planck 2013 results. XIX. The integrated Sachs-Wolfe effect
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Growth rate of structure measurement from anisotropic clustering analysis in configuration space between redshift 0.6 and 1.1 for the Emission Line Galaxy sample
• The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Large-scale Structure Catalogues and Measurement of the isotropic BAO between redshift 0.6 and 1.1 for the Emission Line Galaxy Sample
• Measurement of the gravitational potential evolution from the cross-correlation between WMAP and the APM Galaxy survey
• Cross-correlation of the CMB and radio galaxies in real, harmonic and wavelet spaces: detection of the integrated Sachs-Wolfe effect and dark energy constraints
• Constraining dark energy with cross-correlated CMB and Large Scale Structure data
• Integrated Sachs-Wolfe effect in Cross-Correlation: The Observer's Manual
• Correlating the CMB with Luminous Red Galaxies : The Integrated Sachs-Wolfe Effect
• Measuring Dark Matter Power Spectrum from Cosmic Microwave Background
• The significance of the integrated Sachs-Wolfe effect revisited
• Lensing Induced Cluster Signatures in Cosmic Microwave Background
• Error analysis in cross-correlation of sky maps: application to the ISW detection
• Cross-correlation of 2MASS and WMAP3: Implications for the Integrated Sachs-Wolfe effect
• A model for the cosmological evolution of low frequency radio sources
• A reassessment of the evidence of the Integrated Sachs-Wolfe effect through the WMAP-NVSS correlation
• More out of less: an excess integrated Sachs-Wolfe signal from supervoids mapped out by the Dark Energy Survey
• A WISE measurement of the ISW effect
• A Detection of the Integrated Sachs-Wolfe Effect
• Revisiting the WMAP - NVSS angular cross correlation. A skeptic's view
• An optimal estimator for the CMB-LSS angular power spectrum and its application to WMAP and NVSS data
• Measurement of the integrated Sachs-Wolfe effect using the AllWISE data release
• Measuring the integrated Sachs-Wolfe effect from the low-density regions of the universe
• Detection of cross-correlation between CMB Lensing and low-density points
• Constraining Dark Energy With Stacked Concave Lenses
• Isolating the decay rate of cosmological gravitational potential
• A measurement of the Integrated Sachs-Wolfe Effect with the Rapid ASKAP Continuum Survey
• Degeneracy between nonadiabatic dark energy models and $\Lambda$CDM: ISW effect and the cross correlation of CMB with galaxy clustering data

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