A Natural Cosmological Model with Omega_matter <1

Details A Natural Cosmological Model with Omega_matter <1 A Natural Cosmological Model with Omega_matter <1

1999-02-12

arxiv.org/abs/astro-ph/9902183v1

Astronomy and Astrophysics

Astrophysics

PostScript, 6 pages

Scientific paper

Flat cosmological models with a cosmological constant on the order of the Einstein-de Sitter critical density are enigmatic in the sense that there does not appear to be any natural explanation for why there should be a cosmological constant with such a magnitude. As a perhaps more natural alternative we propose a spatially homogeneous isotropic Omega=1 universe containing cold matter and with a vacuum energy that varies inversely with the square of the Robertson-Walker scale parameter. This leads to a cosmological model that in some ways resembles yet is distinct from an open Friedmann universe with no cosmological constant. Some possibilities for distinguishing between a flat universe with a cosmological constant and a flat universe where the vacuum energy is inversely proportional to the square of the scale parameter are discussed.

Affiliated with

Also associated with

No associations

Rating

A Natural Cosmological Model with Omega_matter <1 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 A Natural Cosmological Model with Omega_matter <1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Natural Cosmological Model with Omega_matter <1 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-227913