Cosmic microwave background limits on spatially homogeneous cosmological models with dark energy

Details Cosmic microwave background limits on spatially homogeneous cosmological models with dark energy Cosmic microwave background limits on spatially homogeneous cosmological models with dark energy

2006-10-17

arxiv.org/abs/astro-ph/0610498v2

Class.Quant.Grav.24:889-895,2007

Astronomy and Astrophysics

Astrophysics

1 figure

Scientific paper

10.1088/0264-9381/24/4/009

We investigate the effect of dark energy on the limits on the shear anisotropy in spatially homogeneous Bianchi cosmological models obtained from measurements of the temperature anisotropies in the cosmic microwave background. We shall primarily assume that the dark energy is modelled by a cosmological constant. In general, we find that there are tighter bounds on the shear than in models with no cosmological constant, although the limits are (Bianchi) model dependent. In addition, there are special spatially homogeneous cosmological models whose rate of expansion is highly anisotropic, but whose cosmic microwave background temperature is measured to be exactly isotropic at one instant of time.

Affiliated with

Also associated with

No associations

Rating

Cosmic microwave background limits on spatially homogeneous cosmological models with 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 Cosmic microwave background limits on spatially homogeneous cosmological models with dark energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmic microwave background limits on spatially homogeneous cosmological models with dark energy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-389826