Weak lensing correlations in open and flat universes

Details Weak lensing correlations in open and flat universes Weak lensing correlations in open and flat universes

1997-06-27

arxiv.org/abs/astro-ph/9706278v1

Astronomy and Astrophysics

Astrophysics

7 pages, 7 figures, mn.sty, accepted in MNRAS

Scientific paper

Correlations between the magnification or polarization of background sources, induced by gravitational lensing due to the large-scale structure, and the positions of foreground galaxies are investigated. We found that their amplitude is enhanced with respect to correlations for a single population. We analize the dependence of the correlations with the density parameter \Omega considering a nonlinear evolution of the matter power spectrum. The contribution of the linear evolution is negligible at scales below several arcminutes. Detailed results on the dependence of the correlations on the redshift of the foreground and background populations for different cosmological models are presented. The effect reaches its maximum amplitude for foreground populations with relatively small redshifts due to the fast increase of the nonlinear matter power spectrum at recent times.

Affiliated with

Also associated with

No associations

Rating

Weak lensing correlations in open and flat universes 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 Weak lensing correlations in open and flat universes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Weak lensing correlations in open and flat universes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-331803