Weak lensing magnification in the Dark Energy Survey Science Verification data
Abstract
In this paper, the effect of weak lensing magnification on galaxy number counts is studied by cross-correlating the positions of two galaxy samples, separated by redshift, using the Dark Energy Survey Science Verification data set. This analysis is carried out for galaxies that are selected only by its photometric redshift. An extensive analysis of the systematic effects, using new methods based on simulations is performed, including a Monte Carlo sampling of the selection function of the survey.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- May 2018
- DOI:
- 10.1093/mnras/sty282
- Bibcode:
- 2018MNRAS.476.1071G
- Keywords:
-
- gravitational lensing: weak;
- methods: data analysis;
- techniques: photometric;
- large-scale structure of Universe