715 citations · 2k across the 19 of their papers we have counts for
15 papers · 1 filter
Fast estimation of aperture-mass statistics I: aperture mass variance and an application to the CFHTLenS data
Lucas Porth, Robert E. Smith, Patrick Simon +2
We explore an alternative method to the usual shear correlation function approach for the estimation of aperture mass statistics in weak lensing survey data. Our approach builds on…
KiDS+VIKING+GAMA: Testing semi-analytic models of galaxy evolution with galaxy-galaxy-galaxy lensing
Laila Linke, Patrick Simon, Peter Schneider +9
Several semi-analytic models (SAMs) try to explain how galaxies form, evolve and interact inside the dark matter large-scale structure. These SAMs can be tested by comparing their…
Minimising the impact of scale-dependent galaxy bias on the joint cosmological analysis of large scale structures
Marika Asgari, Indiarose Friswell, Mijin Yoon +5
We present a mitigation strategy to reduce the impact of non-linear galaxy bias on the joint `pt' cosmological analysis of weak lensing and galaxy surveys. The -sta…
The importance of magnification effects in galaxy-galaxy lensing
Sandra Unruh, Peter Schneider, Stefan Hilbert +3
Magnification changes the observed number counts of galaxies on the sky. This biases the observed tangential shear profiles around galaxies, the so-called galaxy-galaxy lensing (GG…
Measuring galaxy-galaxy-galaxy-lensing with higher precision and accuracy
Laila Linke, Patrick Simon, Peter Schneider +1
Galaxy-galaxy-galaxy lensing (G3L) is a powerful tool for constraining the three-point correlation between the galaxy and matter distribution and thereby models of galaxy evolution…
Scale dependence of galaxy biasing investigated by weak gravitational lensing: An assessment using semi-analytic galaxies and simulated lensing data
Patrick Simon, Stefan Hilbert
Galaxies are biased tracers of the matter density on cosmological scales. For future tests of galaxy models, we refine and assess a method to measure galaxy biasing as function of…
Cluster Mass Calibration at High Redshift: HST Weak Lensing Analysis of 13 Distant Galaxy Clusters from the South Pole Telescope Sunyaev-Zel'dovich Survey
T. Schrabback, D. Applegate, J. P. Dietrich +26
We present an HST/ACS weak gravitational lensing analysis of 13 massive high-redshift (z_median=0.88) galaxy clusters discovered in the South Pole Telescope (SPT) Sunyaev-Zel'dovic…
CFHTLenS: A Gaussian likelihood is a sufficient approximation for a cosmological analysis of third-order cosmic shear statistics
P. Simon, E. Semboloni, L. van Waerbeke +10
We study the correlations of the shear signal between triplets of sources in the Canada-France-Hawaii Lensing Survey (CFHTLenS) to probe cosmological parameters via the matter bisp…
CFHTLenS: Cosmological constraints from a combination of cosmic shear two-point and three-point correlations
Liping Fu, Martin Kilbinger, Thomas Erben +17
Higher-order, non-Gaussian aspects of the large-scale structure carry valuable information on structure formation and cosmology, which is complementary to second-order statistics.…
CFHTLenS: Higher-order galaxy-mass correlations probed by galaxy-galaxy-galaxy lensing
P. Simon, T. Erben, P. Schneider +16
We present the first direct measurement of the galaxy-matter bispectrum as a function of galaxy luminosity, stellar mass, and SED type. Our analysis uses a galaxy-galaxy-galaxy len…
CFHTLenS: The Canada-France-Hawaii Telescope Lensing Survey - Imaging Data and Catalogue Products
T. Erben, H. Hildebrandt, L. Miller +29
We present data products from the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS). CFHTLenS is based on the Wide component of the Canada-France-Hawaii Telescope Legacy Sur…
CFHTLenS: The Canada-France-Hawaii Telescope Lensing Survey
Catherine Heymans, Ludovic Van Waerbeke, Lance Miller +19
We present the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS) that accurately determines a weak gravitational lensing signal from the full 154 square degrees of deep mult…
Galaxy-galaxy(-galaxy) lensing as a sensitive probe of galaxy evolution
Hananeh Saghiha, Stefan Hilbert, Peter Schneider +1
The gravitational lensing effect provides various ways to study the mass environment of galaxies. We investigate how galaxy-galaxy(-galaxy) lensing can be used to test models of ga…
Towards an understanding of third-order galaxy-galaxy lensing
Patrick Simon, Peter Schneider, Daniela Kübler
Third-order galaxy-galaxy lensing (G3L) is a next generation galaxy-galaxy lensing technique that either measures the excess shear about lens pairs or the excess shear-shear correl…
The bispectrum covariance beyond Gaussianity: A log-normal approach
Sandra Martin, Peter Schneider, Patrick Simon
To investigate and specify the statistical properties of cosmological fields with particular attention to possible non-Gaussian features, accurate formulae for the bispectrum and t…