Cosmological Consequences of Exponential Gravity in Palatini Formalism

Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

6 pages, 4 figures, 1 table, LaTeX

Scientific paper

We investigate cosmological consequences of a class of exponential $f(R)$ gravity in the Palatini formalism. By using the current largest type Ia Supernova sample along with determinations of the cosmic expansion at intermediary and high-$z$ we impose tight constraints on the model parameters. Differently from other $f(R)$ models, we find solutions of transient acceleration, in which the large-scale modification of gravity will drive the Universe to a new decelerated era in the future. We also show that a viable cosmological history with the usual matter-dominated era followed by an accelerating phase is predicted for some intervals of model parameters.

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

Cosmological Consequences of Exponential Gravity in Palatini Formalism 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 Cosmological Consequences of Exponential Gravity in Palatini Formalism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmological Consequences of Exponential Gravity in Palatini Formalism will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-639515

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