A Map of the Integrated Sachs-Wolfe Signal from Luminous Red Galaxies

Abstract

We construct a map of the time derivative of the gravitational potential traced by SDSS Luminous Red Galaxies. The potential decays on large scales due to cosmic acceleration, leaving an imprint on cosmic microwave background (CMB) radiation through the integrated Sachs-Wolfe (ISW) effect. With a template fit, we directly measure this signature on the CMB at a 2-sigma confidence level. The measurement is consistent with the cross-correlation statistic, strengthening the claim that dark energy is indeed the cause of the correlation. This new approach potentially simplifies the cosmological interpretation. Our constructed linear ISW map shows no evidence for degree-scale cold and hot spots associated with supervoid and supercluster structures. This suggests that the linear ISW effect in a concordance Lambda-CDM cosmology is insufficient to explain the strong CMB imprints from these structures that we previously reported.

9 pages, 12 figures, accepted to ApJ. Updated discussion about redshift cuts

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Cited by in corpus (18)

• The significance of the integrated Sachs-Wolfe effect revisited
• Detection of a Supervoid Aligned with the Cold Spot of the Cosmic Microwave Background
• DEMNUni: ISW, Rees-Sciama, and weak-lensing in the presence of massive neutrinos
• The lensing and temperature imprints of voids on the Cosmic Microwave Background
• The stacked ISW signal of rare superstructures in ΛCDM
• K-mouflage Cosmology: Formation of Large-Scale Structures
• Impact of Scale Dependent Bias and Nonlinear Structure Growth on the ISW Effect: Angular Power Spectra
• The Jubilee ISW Project II: observed and simulated imprints of voids and superclusters on the cosmic microwave background
• Integrated Sachs Wolfe Effect and Rees Sciama Effect
• Testing the imprint of non-standard cosmologies on void profiles using Monte Carlo random walks
• Voids and the Cosmic Web: cosmic depressions & spatial complexity
• Mapping the Integrated Sachs-Wolfe Effect
• An improved model of redshift-space distortions around voids: application to quintessence dark energy
• The Integrated Sachs-Wolfe Effect in Time Varying Vacuum Model
• Formation of the large-scale structure of the Universe
• What have we learned from observational cosmology ?
• Full sky Integrated Sachs-Wolfe maps for the MICE Grand Challenge lightcone simulation
• Integrated Sachs-Wolfe maps from the Gower Street $w$CDM simulations