Showing 1998Show all
2 papers · 1 filter
astro-ph1998
Weak lensing and cosmology
Marco Lombardi, Giuseppe Bertin
Recently, it has been shown that it is possible to reconstruct the projected mass distribution of a cluster from weak lensing provided that both the geometry of the universe and th…
astro-ph1998
Improving the accuracy of mass reconstructions from weak lensing: from the shear map to the mass distribution
Marco Lombardi, Giuseppe Bertin
In this paper we provide a statistical analysis of the parameter-free method often used in weak lensing mass reconstructions. It is found that a proper assessment of the errors inv…