Voids and overdensities of coupled Dark Energy

Details Voids and overdensities of coupled Dark Energy Voids and overdensities of coupled Dark Energy

2009-03-03

arxiv.org/abs/0903.0574v1

JCAP 0904:017,2009

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

21 pages, 12 figures, submitted to JCAP

Scientific paper

10.1088/1475-7516/2009/04/017

We investigate the clustering properties of dynamical Dark Energy even in association of a possible coupling between Dark Energy and Dark Matter. We find that within matter inhomogeneities, Dark Energy migth form voids as well as overdensity depending on how its background energy density evolves. Consequently and contrarily to what expected, Dark Energy fluctuations are found to be slightly suppressed if a coupling with Dark Matter is permitted. When considering density contrasts and scales typical of superclusters, voids and supervoids, perturbations amplitudes range from $|\delta_\phi|\sim {\cal O} (10^{-6})$ to $|\delta_\phi|\sim {\cal O} (10^{-4})$ indicating an almost homogeneous Dark Energy component.

Affiliated with

Also associated with

No associations

Rating

Voids and overdensities of coupled Dark Energy 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 Voids and overdensities of coupled Dark Energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voids and overdensities of coupled Dark Energy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-653584