289 citations · 1.5k across the 66 of their papers we have counts for
6 papers · 1 filter
Extreme value statistics of CMB lensing deflection angles
Philipp M. Merkel, Bjoern Malte Schaefer
The smaller the angular scales on which the anisotropies of the cosmic microwave background (CMB) are probed the more important their distortion due to gravitational lensing become…
Non-Gaussian forecasts of weak lensing with and without priors
Elena Sellentin, Björn Malte Schäfer
Assuming a Euclid-like weak lensing data set, we compare different methods of dealing with its inherent parameter degeneracies. Including priors into a data analysis can mask the i…
Combined constraints on deviations of dark energy from an ideal fluid from Euclid and Planck
Elisabetta Majerotto, Domenico Sapone, Bjoern Malte Schaefer
Cosmological fluids are commonly assumed to be distributed in a spatially homogeneous way, while their internal properties are described by a perfect fluid. As such, they influence…
Galaxy alignments: Theory, modelling and simulations
Alina Kiessling, Marcello Cacciato, Benjamin Joachimi +8
The shapes of galaxies are not randomly oriented on the sky. During the galaxy formation and evolution process, environment has a strong influence, as tidal gravitational fields in…
Galaxy alignments: Observations and impact on cosmology
Donnacha Kirk, Michael L. Brown, Henk Hoekstra +10
Galaxy shapes are not randomly oriented, rather they are statistically aligned in a way that can depend on formation environment, history and galaxy type. Studying the alignment of…
Galaxy alignments: An overview
Benjamin Joachimi, Marcello Cacciato, Thomas D. Kitching +8
The alignments between galaxies, their underlying matter structures, and the cosmic web constitute vital ingredients for a comprehensive understanding of gravity, the nature of mat…