The properties of lenses and sources in the CASSOWARY survey

Zuzanna Kostrzewa-Rutkowska

We investigate the strong lensing effect to explore the properties of lensing galaxies and lensed faint sources at redshifts between 1.5 and 3.0 (Kostrzewa-Rutkowska et al., 2014). Our sample consists of 9 strongly-lensed galaxies discovered by the Cambridge And Sloan Survey Of Wide ARcs in the skY (CASSOWARY) in the Sloan Digital Sky Survey (SDSS) data. We find that despite some limitations of the original SDSS data, the homogenous sample of lensing systems can provide a useful insight into lens and source properties. The magnification extends above 5, hence we are able to analyse potentially smaller and less massive galaxies at high redshifts. We study the relative alignment of mass and light in fitted lens profiles and the size-mass relation for sources.

Proceedings of the Polish Astronomical Society, vol. 1, 164-166 (2014)

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