Open AccessWeak lensing from strong clustering
Author(s) -
Munshi Dipak,
Coles Peter
Publication year - 2000
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2000.03190.x
Subject(s) - physics , weak gravitational lensing , strong gravitational lensing , cluster analysis , gravitational lensing formalism , galaxy , scaling , astrophysics , gravitational lens , vertex (graph theory) , statistical physics , redshift , statistics , graph , mathematics , geometry , discrete mathematics
We investigate the effect of weak gravitational lensing in the limit of small angular scales where projected galaxy clustering is strongly non‐linear. This is the regime likely to be probed by future weak lensing surveys. We use well‐motivated hierarchical scaling arguments and the plane‐parallel approximation to study multi‐point statistical properties of the convergence field. These statistics can be used to compute the vertex amplitudes in tree models of hierarchical clustering; these can be compared with similar measurements from galaxy surveys, leading to a powerful probe of galaxy bias.