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Lensing by galaxy halos in clusters of galaxies
Priyamvada Natarajan, Jean-Paul Kneib
Weak shear maps of the outer regions of clusters have been successfully used to map the distribution of mass at large radii from the cluster center. The typical smoothing lengths e…
Identification of a Gravitationally Lensed z=2.515 Star-Forming Galaxy
T. M. D. Ebbels, J. -F. Le Borgne, R. Pelló +4
We discuss the optical spectrum of a multiply-imaged arc resolved by HST in the =0.175 cluster A2218. The spectrum, obtained with LDSS-2 on the 4.2m William Herschel telescope,…
Probing the dynamics of cluster-lenses
Priyamvada Natarajan, Jean-Paul Kneib
We propose a new approach to study the dynamical implications of mass models of clusters for the velocity structure of galaxies in the core. Strong and weak lensing data are used t…
The Mass Distribution of CL0939+4713 obtained from a `Weak' Lensing Analysis of a WFPC2 image
Carolin Seitz, Jean-Paul Kneib, Peter Schneider +1
The image distortions of high-redshift galaxies caused by gravitational light deflection of foreground clusters of galaxies can be used to reconstruct the two-dimensional surface m…