122 citations · 1k across the 26 of their papers we have counts for
21 papers · 1 filter
Probing dark energy evolution with Quaia quasars through the integrated Sachs-Wolfe effect
M. Ghodsi Yengejeh, J. R. Bermejo-Climent, A. Kovács +2
The Integrated Sachs--Wolfe (ISW) effect probes the late-time evolution of gravitational potentials and provides a complementary test of the nature of dark energy. We investigate w…
Dark Energy Survey Year 3 results: imprints of cosmic voids and superclusters in the Planck CMB lensing map
A. Kovács, P. Vielzeuf, I. Ferrero +82
The CMB lensing signal from cosmic voids and superclusters probes the growth of structure in the low-redshift cosmic web. In this analysis, we cross-correlated the Planck CMB lensi…
The DES view of the Eridanus supervoid and the CMB Cold Spot
A. Kovács, N. Jeffrey, M. Gatti +119
The Cold Spot is a puzzling large-scale feature in the Cosmic Microwave Background temperature maps and its origin has been subject to active debate. As an important foreground str…
Evidence for a high-z ISW signal from supervoids in the distribution of eBOSS quasars
A. Kovács, R. Beck, A. Smith +3
The late-time integrated Sachs-Wolfe (ISW) imprint of super-structures is sourced by evolving large-scale potentials due to a dominant dark energy co…
A common explanation of the Hubble tension and anomalous cold spots in the CMB
András Kovács, Róbert Beck, István Szapudi +3
The standard cosmological paradigm narrates a reassuring story of a universe currently dominated by an enigmatic dark energy component. Disquietingly, its universal explaining powe…
Dark Energy Survey Year 1 Results: the lensing imprint of cosmic voids on the Cosmic Microwave Background
P. Vielzeuf, A. Kovács, U. Demirbozan +62
Cosmic voids gravitationally lens the cosmic microwave background (CMB) radiation, resulting in a distinct imprint on degree scales. We use the simulated CMB lensing convergence ma…