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Imprint of DES super-structures on the Cosmic Microwave Background
A. Kovács, C. Sánchez, J. García-Bellido +58
Small temperature anisotropies in the Cosmic Microwave Background can be sourced by density perturbations via the late-time integrated Sachs-Wolfe effect. Large voids and superclus…
Tracing the gravitational potential using cosmic voids
Seshadri Nadathur, Shaun Hotchkiss, Robert Crittenden
The properties of large underdensities in the distribution of galaxies in the Universe, known as cosmic voids, are potentially sensitive probes of fundamental physics. We use data…
A detection of the integrated Sachs-Wolfe imprint of cosmic superstructures using a matched-filter approach
Seshadri Nadathur, Robert Crittenden
We present a new method for detection of the integrated Sachs-Wolfe (ISW) imprints of cosmic superstructures on the cosmic microwave background, based on a matched filtering approa…
Cosmic Voids and Void Lensing in the Dark Energy Survey Science Verification Data
C. Sánchez, J. Clampitt, A. Kovacs +69
Galaxies and their dark matter halos populate a complicated filamentary network around large, nearly empty regions known as cosmic voids. Cosmic voids are usually identified in spe…
Testing cosmology with a catalogue of voids in the BOSS galaxy surveys
Seshadri Nadathur
We present a public catalogue of voids in the Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 11 LOWZ and CMASS galaxy surveys. This catalogue contains information on t…