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Dependence of cosmic shear covariances on cosmology - Impact on parameter estimation
Tim Eifler, Peter Schneider, Jan Hartlap
In cosmic shear likelihood analyses the covariance is most commonly assumed to be constant in parameter space. Therefore, when calculating the covariance matrix (analytically or fr…
Comparing cosmic shear measures - Optimizing the Information content of cosmic shear data vectors
T. Eifler, M. Kilbinger, P. Schneider
We introduce an optimized data vector of cosmic shear measures (N). This data vector has high information content, is not sensitive against B-mode contamination and only shows smal…
Analysis of two-point statistics of cosmic shear: III. Covariances of shear measures made easy
B. Joachimi, P. Schneider, T. Eifler
In recent years cosmic shear, the weak gravitational lensing effect by the large-scale structure of the Universe, has proven to be one of the observational pillars on which the cos…
Cosmic shear analysis of archival HST/ACS data: I. Comparison of early ACS pure parallel data to the HST/GEMS Survey
T. Schrabback, T. Erben, P. Simon +9
This is the first paper of a series describing our measurement of weak lensing by large-scale structure using archival observations from the Advanced Camera for Surveys (ACS) on bo…
GaBoDS: The Garching-Bonn Deep Survey VIII. Lyman-break galaxies in the ESO Deep Public Survey
H. Hildebrandt, J. Pielorz, T. Erben +4
Aims. The clustering properties of a large sample of U-dropouts are investigated and compared to very precise results for B-dropouts from other studies to identify a possible evolu…
E- and B-mode mixing from incomplete knowledge of the shear correlation
Martin Kilbinger, Peter Schneider, Tim Eifler
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 clos…