Cosmic Evolution Impressions on Lensing Maps

Details Cosmic Evolution Impressions on Lensing Maps Cosmic Evolution Impressions on Lensing Maps

2003-04-18

arxiv.org/abs/astro-ph/0304342v1

Astronomy and Astrophysics

Astrophysics

13 pages, 12 figures, conference "Gravitational lensing: a unique tool for cosmology", Aussois, France, 2003

Scientific paper

I investigate through simulations the redshift dependence of several lensing measures for two cosmological models, a flat universe with a cosmological constant (\LambdaCDM), and an open universe (OCDM). I argue that quintessence models can be seen as an intermediate model between these two models under the weak gravitational lensing perspective. I calculate for the convergence field the angular power spectrum, the variance and higher order moments, the probability distribution function, and the Minkowski functionals. I find that in the redshift range examined (from z=0.7 to z=3 various statistics show an increase of the non-Gaussianity of the lensing maps for closer sources. Lensing surveys of higher redshift are expected to be less non-Gaussian than shallow ones because of the non-linear evolution of the density field, and the central limit theorem.

Affiliated with

Also associated with

No associations

Rating

Cosmic Evolution Impressions on Lensing Maps does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cosmic Evolution Impressions on Lensing Maps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmic Evolution Impressions on Lensing Maps will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-595834