289 citations · 1.5k across the 66 of their papers we have counts for
5 papers · 1 filter
Intrinsic Alignments in IllustrisTNG and their implications for weak lensing: Tidal shearing and tidal torquing mechanisms put to the test
Jolanta Zjupa, Björn Malte Schäfer, Oliver Hahn
Accurate measurements of the cosmic shear signal require a separation of the true weak gravitational lensing signal from intrinsic shape correlations of galaxies. These `intrinsic…
Information entropy in cosmological inference problems
Ana Marta Pinho, Robert Reischke, Marie Teich +1
The subject of this paper is a quantification of the information content of cosmological probes of the large-scale structures, specifically of temperature and polarisation anisotro…
Intrinsic and extrinsic correlations of galaxy shapes and sizes in weak lensing data
Basundhara Ghosh, Ruth Durrer, Bjoern Malte Schaefer
The subject of this paper is to build a physical model describing shape and size correlations of galaxies due to weak gravitational lensing and due to direct tidal interaction of e…
Information geometry in cosmological inference problems
Eileen Giesel, Robert Reischke, Björn Malte Schäfer +1
Statistical inference more often than not involves models which are non-linear in the parameters thus leading to non-Gaussian posteriors. Many computational and analytical tools ex…
Optimising tomography for weak gravitational lensing surveys
Marvin Sipp, Bjoern Malte Schaefer, Robert Reischke
The subject of this paper is optimisation of weak lensing tomography: We carry out numerical minimisation of a measure of total statistical error as a function of the redshifts of…