Cluster-cluster strong lensing: expectations and detection methods
نویسندگان
چکیده
منابع مشابه
Cosmography with cluster strong lensing
By stacking an ensemble of strong lensing clusters, we demonstrate the feasibility of placing constraints on the dark energy equation of state. This is achieved by using multiple images of sources at two or more distinct redshift planes. The sample of smooth clusters in our simulations is based on observations of massive clusters and the distribution of background galaxies is constructed using ...
متن کاملCluster Strong Lensing Constraints on Dark Energy
Cluster strong lensing can be used to obtain constraints on cosmological parameters, in particular as we show here, the dark energy equation of state. This is achieved by using multiple images of sources at two or more distinct redshift planes. Utilizing many families of multiply imaged sources we obtain purely geometric constraints on dark energy that are largely independent of the properties ...
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Weak gravitational lensing is considered to be one of the most powerful tools to study the mass and the mass distribution of galaxy clusters. However, the mass-sheet degeneracy transformation has limited its success. We present a novel method for a cluster mass reconstruction which combines weak and strong lensing information on common scales and can, as a consequence, break the mass-sheet dege...
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These are notes from introductory survey lectures given at the Institute for Studies in Theoretical Physics and Mathematics (IPM), Teheran, in 2008 and 2010. We present the definition and the fundamental properties of Fomin-Zelevinsky’s cluster algebras. Then, we introduce quiver representations and show how they can be used to construct cluster variables, which are the canonical generator...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1999
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.1999.02646.x