Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012hell.conf...14m&link_type=abstract
10th Hellenic Astronomical Conference, Proceedings of the conference held at Ioannina, Greece, 5-8 September 2011. Edited by Io
Astronomy and Astrophysics
Astronomy
Scientific paper
Strong gravitational lensing is an observed phenomenon that creates multiple images of distant objects through a gravitational focusing effect by massive foreground objects. While lensing can be used for precision cosmography and for studying (magnified) strongly-lensed distant galaxies or AGN, it is also a unique probe of the cluster or galaxy that is acting as the lens. With tailored observations of strong lenses of different scales, it is possible to determine the mass-density profile of galaxies and galaxy clusters, gain insight into the Fundamental Plane relation for early type galaxies, and map the properties of predicted structures at mass scales below those of dwarf galaxies within lensing galaxies. The unifying themes for all of these capabilities that strong lensing observations enables is in the nature of dark matter, and the formation and evolution of structure in the universe. I will draw these connections, and present recent and planned work and techniques that push these frontiers, including from SLACS, CLASH, and the OMEGA Explorer.
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