Observational constraints on the dark energy and dark matter mutual coupling

We examine different phenomenological interaction models for Dark Energy and Dark Matter by performing statistical joint analysis with observational data arising from the 182 Gold type Ia supernova samples, the shift parameter of the Cosmic Microwave Background given by the three-year Wilkinson Micr...

Full description

Saved in:
Bibliographic Details
Published inPhysics letters. B Vol. 665; no. 2-3; pp. 111 - 119
Main Authors Feng, Chang, Wang, Bin, Abdalla, Elcio, Su, Rukeng
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 17.07.2008
Elsevier Science
Subjects
Exact sciences and technology
Nuclear physics
Physics
The physics of elementary particles and fields
98.80-k
98.80.Cq
Mutual coupling
Statistical analysis
Galaxies
Supernovae
Cosmic background radiation
Second law of thermodynamics
WMAP satellite
Baryons
Phenomenological model
Cosmology
Dark energy
Compatibility
Observables
Sky surveys
Age
Online AccessGet full text

Cover

More Information
Summary:We examine different phenomenological interaction models for Dark Energy and Dark Matter by performing statistical joint analysis with observational data arising from the 182 Gold type Ia supernova samples, the shift parameter of the Cosmic Microwave Background given by the three-year Wilkinson Microwave Anisotropy Probe observations, the baryon acoustic oscillation measurement from the Sloan Digital Sky Survey and age estimates of 35 galaxies. Including the time-dependent observable, we add sensitivity of measurement and give complementary results for the fitting. The compatibility among three different data sets seem to imply that the coupling between dark energy and dark matter is a small positive value, which satisfies the requirement to solve the coincidence problem and the second law of thermodynamics, being compatible with previous estimates.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2008.05.066