Constraints on cosmological models with the decaying cosmological constant from cosmic background radiation anisotropies

Mathematics – Logic

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

17

Cosmology, Dark Matter, Microwaves, Relic Radiation, Anisotropy, Quadrupoles, Temperature Distribution, Universe

Scientific paper

The existence of a scalar field is favorable in the early universe. After the epoch of the inflation, the energy density of the scalar field should decrease and might behave as a time-variable cosmological constant. Using recent observations for the isotropy of the cosmic background radiation, constraints are obtained on cosmological models with the time-variable cosmological constant. It is shown that there is a possibility for the cold dark matter-dominated universe models with initially scale-invariant adiabatic perturbations to realize a spatially flat, low-density universe. To explain the long life of globular clusters, however, a very long-lived scalar field is desirable.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Constraints on cosmological models with the decaying cosmological constant from cosmic background radiation anisotropies 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 Constraints on cosmological models with the decaying cosmological constant from cosmic background radiation anisotropies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on cosmological models with the decaying cosmological constant from cosmic background radiation anisotropies will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1215195

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.