Schrabback, Tim, Hartlap, Jan, Joachimi, Benjamin, Kilbinger, Martin, Simon, Patrick, Benabed, Karim, ...
We present a tomographic cosmological weak lensing analysis of the HST COSMOS Survey. Applying our lensing-optimized data reduction, principal component interpolation for the ACS PSF, and improved...
A new cosmic shear function: Optimised E-/B-mode decomposition on a finite interval (2009)
The decomposition of the cosmic shear field into E- and B-mode is an important diagnostic in weak gravitational lensing. However, commonly used techniques to perform this separation suffer from...
On the impact of intergalactic dust on cosmology with type Ia supernovae (2009)
Ménard, Brice, Kilbinger, Martin, Scranton, Ryan
Supernova measurements have become a key ingredient in current determinations of cosmological parameters. These sources can however be used as standard candles only after correcting their apparent...
Estimation of cosmological parameters using adaptive importance sampling (2009)
Wraith, Darren, Kilbinger, Martin, Benabed, Karim, Cappé, Olivier, Cardoso, Jean-François, Fort, Gersende, ...
We present a Bayesian sampling algorithm called adaptive importance sampling or Population Monte Carlo (PMC), whose computational workload is easily parallelizable and thus has the potential to...
CFHTLS weak-lensing constraints on the neutrino masses (2008)
Tereno, Ismael, Schimd, Carlo, Uzan, Jean-Philippe, Kilbinger, Martin, Vincent, Frederic H., Fu, Liping
We use measurements of cosmic shear from CFHTLS, combined with WMAP-5 cosmic microwave background anisotropy data, baryonic acoustic oscillations from SDSS and 2dFGRS and supernovae data from SNLS...
Schneider, Peter, Kilbinger, Martin
Aims. One of the main probes for systematic errors in the cosmic shear signal are the division of the shear field into E- and B-mode shear, where gravitational lensing only produces the former. As...
E- and B-mode mixing from incomplete knowledge of the shear correlation (2006)
Kilbinger, Martin, Schneider, Peter, Eifler, Tim
Aims. We quantify the mixing of the measured cosmic-shear E- and B-modes caused by the lack of shear-correlation measurements on small and large scales, arising from a lack of close projected galaxy...
Principal Component Analysis of Weak Lensing Surveys (2005)
Munshi, Dipak, Kilbinger, Martin
We study degeneracies between cosmological parameters and measurement errors from cosmic shear surveys using a principal component analysis of the Fisher matrix. We simulate realistic survey...
Designing Weak Lensing Surveys: A Generalised Eigenmode Analysis (2005)
Kilbinger, Martin, Munshi, Dipak
We study the estimators of various second-order weak lensing statistics such as the shear correlation functions xi_\pm and the aperture mass dispersion which can directly be constructed from weak...
Kilbinger, Martin, Schneider, Peter
We present predictions for cosmological parameter constraints from combined measurements of second- and third-order statistics of cosmic shear. We define the generalized third-order aperture mass...
Cosmological Parameters from Cosmic Shear (2003)
We present simulations of a cosmic shear survey and show how the survey geometry influences the accuracy of determination of cosmological parameters. We numerically calculate the full covariance...
Schneider, Peter, Kilbinger, Martin, Lombardi, Marco
We study the relation of the three-point cosmic shear statistics to the third-order statistical properties of the underlying convergence, expressed in terms of its bispectrum. Explicit relations for...
Analysis of two-point statistics of cosmic shear: II. Optimizing the survey geometry (2003)
Kilbinger, Martin, Schneider, Peter
We present simulations of a cosmic shear survey and show how the survey geometry influences the accuracy of determination of cosmological parameters. We numerically calculate the full covariance...
Analysis of two-point statistics of cosmic shear: I. Estimators and covariances (2002)
Schneider, Peter, Van Waerbeke, Ludovic, Kilbinger, Martin, Mellier, Yannick
We derive in this paper expressions for the covariance matrix of the cosmic shear two-point correlation functions which are readily applied to any survey geometry. Furthermore, we consider the more...