DBI models for the unification of dark matter and dark energy

Details DBI models for the unification of dark matter and dark energy DBI models for the unification of dark matter and dark energy

2009-04-07

arxiv.org/abs/0904.1114v2

Gen.Rel.Grav.42:1189-1209,2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

11 pages, 8 figures, revtex, new references

Scientific paper

10.1007/s10714-009-0901-z

We propose a model based on a DBI action for the unification of dark matter and dark energy. This is supported by the results of the study of its background behavior at early and late times, and reinforced by the analysis of the evolution of perturbations. We also perform a Bayesian analysis to set observational constraints on the parameters of the model using type Ia SN, CMB shift and BAO data. Finally, to complete the study we investigate its kinematics aspects, such as the effective equation of state parameter, acceleration parameter and transition redshift. Particularizing those parameters for the best fit one appreciates that an effective phantom is preferred.

Affiliated with

Also associated with

No associations

Rating

DBI models for the unification of dark matter and 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 DBI models for the unification of dark matter and dark energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DBI models for the unification of dark matter and dark energy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-314054