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A New Window of Exploration in the Mass Spectrum: Strong Lensing by Galaxy Groups in the SL2S
M. Limousin, R. Cabanac, R. Gavazzi +21
The existence of strong lensing systems with Einstein radii (Re) covering the full mass spectrum, from ~1-2" (produced by galaxy scale dark matter haloes) to >10" (produced by gala…
The role of luminous substructure in the gravitational lens system MG 2016+112
A. More, J. P. McKean, S. More +3
MG 2016+112 is a quadruply imaged lens system with two complete images A and B and a pair of merging partial images in region C as seen in the radio. The merging images are found t…
Probing a massive radio galaxy with gravitational lensing
A. More, J. P. McKean, T. W. B. Muxlow +3
The gravitational lens system CLASS B2108+213 has two lensed images separated by 4.56 arcsec. Such a wide image separation suggests that the lens is either a massive galaxy, or is…
Multi-Frequency VLBI Observations of the Gravitational Lens B2016+112
A. More, R. W. Porcas
We present Global VLBI and HSA images of the gravitational lens B2016+112 at 18, 6 and 3.6 cm. Previous VLBI observations showed that images A and B (which are clearly lensed image…