27 citations · 101 across the 7 of their papers we have counts for
7 papers · 1 filter
Skewness and Kurtosis as Indicators of Non-Gaussianity in Galactic Foreground Maps
Assaf Ben-David, Sebastian von Hausegger, Andrew D. Jackson
Observational cosmology is entering an era in which high precision will be required in both measurement and data analysis. Accuracy, however, can only be achieved with a thorough u…
The Kullback-Leibler Divergence as an Estimator of the Statistical Properties of CMB Maps
Assaf Ben-David, Hao Liu, Andrew D. Jackson
The identification of unsubtracted foreground residuals in the cosmic microwave background maps on large scales is of crucial importance for the analysis of polarization signals. T…
A close examination of cosmic microwave background mirror-parity after Planck
Assaf Ben-David, Ely D. Kovetz
Previous claims of significant evidence for mirror-parity in the large-scale cosmic microwave background (CMB) data from the Wilkinson Microwave Anisotropy Probe (WMAP) experiment…
Orbifold Line Topology and the Cosmic Microwave Background
Ben Rathaus, Assaf Ben-David, Nissan Itzhaki
We extend our study of a universe with a non-classical stringy topology, and consider an orbifold line topology, . This topology has a fi…
Searching for Stringy Topologies in the Cosmic Microwave Background
Assaf Ben-David, Ben Rathaus, Nissan Itzhaki
We consider a universe with a non-classical stringy topology that has fixed points. We concentrate on the simplest example, an orbifold point, and study its observable imprints on…
Parity in the CMB: Space Oddity
Assaf Ben-David, Ely D. Kovetz, Nissan Itzhaki
We search for a direction in the sky that exhibits parity symmetry under reflections through a plane. We use the natural estimator, which compares the power in even and odd $\ell+m…
Giant Rings in the CMB Sky
Ely D. Kovetz, Assaf Ben-David, Nissan Itzhaki
We find a unique direction in the CMB sky around which giant rings have an anomalous mean temperature profile. This direction is in very close alignment with the afore measured ano…