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Parameterised models for the lensing cluster Abell 1689
Lindsay King, Douglas Clowe, Peter Schneider
Here we apply a recently developed maximum likelihood method for determining best-fit parameterised lens models to observations of the rich lensing cluster Abell 1689. The observat…
B-modes in cosmic shear from source redshift clustering
P. Schneider, L. van Waerbeke, Y. Mellier
Weak gravitational lensing by the large scale structure can be used to probe the dark matter distribution in the Universe directly and thus to probe cosmological models. The recent…
B1422+231: The influence of mass substructure on strong lensing
M. Bradac, P. Schneider, M. Steinmetz +3
In this work we investigate the gravitationally lensed system B1422+231. High--quality VLBI image positions, fluxes and shapes as well as an optical HST lens galaxy position are us…
The noise of cluster mass reconstructions from a source redshift distribution
Marco Lombardi, Peter Schneider, Carlos Morales-Merino
The parameter-free reconstruction of the surface-mass density of clusters of galaxies is one of the principal applications of weak gravitational lensing. From the observable ellipt…
Cosmic Shear from STIS Pure Parallels: Analysis
H. Haemmerle, J. -M. Miralles, P. Schneider +5
The measurement of cosmic shear requires deep imaging with high image quality on many lines of sight to sample the statistics of large-scale structure. The expected distortion of g…
The cosmic shear STIS parallel program - First results
H. Haemmerle, J. -M. Miralles, P. Schneider +5
Since the Universe is inhomogeneous on scales well below the Hubble radius, light bundles from distant galaxies are deflected and distorted by the tidal gravitational field of the…