期刊
ASTRONOMY & ASTROPHYSICS
卷 541, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201118587
关键词
gravitational lensing: weak; large-scale structure of Universe
资金
- French Programme National de Cosmologie et Galaxies
- French-Japanese Programme Hubert Curien/Sakura [25727TL]
- JSPS
- World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan
- [467]
- Grants-in-Aid for Scientific Research [10J00181, 10J02533] Funding Source: KAKEN
Aims. We investigate the performance of an analytic model of the 3D matter distribution, which combines perturbation theory with halo models, for weak-lensing configuration-space statistics. Methods. We compared our predictions for the weak-lensing convergence two-point and three-point correlation functions with numerical simulations and fitting formulas proposed in previous works. We also considered the second-and third-order moments of the smoothed convergence and of the aperture-mass. Results. As in our previous study of Fourier-space weak-lensing statistics, we find that our model agrees better with simulations than previously published fitting formulas. Moreover, we recover the dependence on cosmology of these weak-lensing statistics and we can describe multi-scale moments. This approach allows us to obtain the quantitative relationship between these integrated weak-lensing statistics and the various contributions to the underlying 3D density fluctuations, decomposed over perturbative, two-halo, or one-halo terms.
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