Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 420, Issue 2, Pages 1621-1629Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2966.2011.20155.x
Keywords
galaxies: clusters: general; galaxies: clusters: individual: Abell 383; cosmology: observations; dark matter
Categories
Funding
- US-IL Binational Science Foundation [2008452]
- British Council
- Israel Science Foundation [823/09]
- NASA
- INAF
- Gordon and Betty Moore Foundation
- [NSF/AST-0838261]
- [NASA/NNX11AB07G]
- [NSF/AST-9618798]
- [NSF/AST-0098737]
- [NSF/AST-9980846]
- [NSF/AST-0229008]
- [NSF/AST-0206158]
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Extensive surveys of galaxy clusters motivate us to assess the likelihood of clustercluster lensing (CCL), namely, gravitational lensing of a background cluster by a foreground cluster. We briefly describe the characteristics of CCLs in optical, X-ray and SunyaevZel'dovich effect measurements, and calculate their predicted numbers for ? cold dark matter (?CDM) parameters and a viable range of cluster mass functions and their uncertainties. The predicted number of CCLs in the strong-lensing regime varies from several (<10) to as high as a few dozen, depending mainly on whether lensing triaxiality bias is accounted for, through the cM relation. A much larger number is predicted when taking into account also CCL in the weak-lensing regime. In addition to few previously suggested CCLs, we report a detection of a possible CCL in A383, where background candidate high-z structures are magnified, as seen in deep Subaru observations.
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