Testing the interaction between dark energy and dark matter via latest observations

Details Testing the interaction between dark energy and dark matter via latest observations Testing the interaction between dark energy and dark matter via latest observations

2010-12-17

arxiv.org/abs/1012.3904v3

Phys.Rev.D83:063515,2011

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

13 pages, 5 figures, revised version, accepted for publication in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.83.063515

Cosmological analysis based on currently available observations are unable to rule out a sizeable coupling between dark energy and dark matter. However, the signature of the coupling is not easy to grasp, since the coupling is degenerate with other cosmological parameters, such as the dark energy equation of state and the dark matter abundance. We discuss the possible ways to break such degeneracy. Based on the perturbation formalism, we carry out the global fitting by using latest observational data and get a tight constraint on the interaction between dark sectors. We find that the appropriate interaction can alleviate the coincidence problem.

Affiliated with

Also associated with

No associations

Rating

Testing the interaction between dark energy and dark matter via latest observations 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 Testing the interaction between dark energy and dark matter via latest observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing the interaction between dark energy and dark matter via latest observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-639347