Effective phantom dark energy in scalar-tensor gravity

Details Effective phantom dark energy in scalar-tensor gravity Effective phantom dark energy in scalar-tensor gravity

2012-04-02

arxiv.org/abs/1204.0369v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

15 pages, 5 figures

Scientific paper

We revisit the problem of phantom behaviour of effective dark energy in scalar-tensor gravity. The main focus is on the properties of the functions defining the model. We find that models with the present phantom behavior can be made consistent with all constraints, but one of these functions must have rather contrived shape, and the initial data must be strongly fine-tuned. Also, the phantom stage must have begun fairly recently, at $z\lesssim 1$. All this disfavors the effective phantom behaviour in the scalar-tensor gravity.

Affiliated with

Also associated with

No associations

Rating

Effective phantom dark energy in scalar-tensor gravity 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 Effective phantom dark energy in scalar-tensor gravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effective phantom dark energy in scalar-tensor gravity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-509466