Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21734702w&link_type=abstract
American Astronomical Society, AAS Meeting #217, #347.02; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
The Sloan Bright Arcs Survey (SBAS) at Fermilab has discovered and studied instances of strong gravitational lensing using data from the Sloan Digital Sky Survey. As part of this survey, we took images at the WIYN telescope at Kitt Peak National Observatory of ten strong gravitational lenses discovered by the SBAS; these lenses are all associated with galaxy clusters. Using these data, we have sought to characterize the properties of the lensing clusters. We present our findings of values of mass and richness for the galaxy clusters and our initial findings for the Einstein radii and enclosed masses of the lenses themselves. We also present results corroborating previous groups’ findings that the ΛCDM model may underestimate Einstein radii when predicting them based on cluster masses. Our data set includes lower mass clusters than those considered in previous studies.
Allam Sahar S.
Annis James
Buckley-Geer Elizabeth
Diehl Thomas H.
Kubik Donna
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