Shear weak lensing as a probe of the large-scale structure

Cosmic Shear weak lensing as a probe of the large-scale structure 

In this section the possibility of using weak lensing analysis for mapping the large-scale structure of the universe is investigated. 

At the end of the previous section, it has been stressed that the convergence and shear components all derived from a single scalar field direcdy proportional to the projected potential. To be more precise if the elements of the amplification matrix are dominated by one single lens then 

Note that the cosmological distances are proportional to c/H0 so that the n-5 relation is does not depend on the value of Ho. 

Before further exploration of the phenomenological consequences of this relation, it should be extended to cases where multiple lenses are along the line of sight a generic situation in a cosmological context. 

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