ADetection of the Integrated Sachs-Wolfe Effect

The integrated Sachs-Wolfe effect and the SKA

An important probe of dark energy is the integrated Sachs-Wolfe effect, where cosmic microwave background anisotropies are generated at late times once the dark energy becomes important dynamically. This contribution briefly describes the effect and summarises the present observational evidence for it. A potential survey by the Square Kilometre Array (SKA) covering a large fraction of the sky c...

Combined analysis of the integrated Sachs-Wolfe effect and cosmological implications

Statistics of rare objects and the Integrated Sachs-Wolfe effect in ΛCDM N-body simulations

Integrated Sachs-Wolfe effect in the era of precision cosmology

Recent detections of the Integrated Sachs-Wolfe effect through the correlation of the cosmic microwave background temperature anisotropy with traces of large scale structure provided independent evidence for the expansion of the universe being dominated by something other than matter. Even with perfect data, statistical errors will limit the accuracy of such measurements to worse than 10%. On t...

ar X iv : g r - qc / 0 60 60 30 v 1 7 J un 2 00 6 Chaplygin gas in light of recent integrated Sachs – Wolfe effect data

We investigate the possibility of constraining Chaplygin dark energy models with current Integrated Sachs Wolfe effect data. In the case of a flat universe we found that generalized Chaplygin gas models must have an energy density such that Ωc > 0.55 and an equation of state w < −0.6 at 95% c.l.. We also investigate the recently proposed Silent Chaplygin models, constraining Ωc > 0.55 and w < −...