Interacting dark energy and dark matter is used to go beyond the standard cosmology. We base our arguments on Planck data and conclude that an interaction is compatible with the observations and can provide a strong argument towards consistency of different values of cosmological parameters.
DOI:https://doi.org/10.1103/PhysRevD.89.103531
© 2014 American Physical Society
Evolution of the dark energy to dark matter energy density ratio in a model with for different coupling constants. (a) The red dashed line corresponds to Planck best-fit model I, with corresponding to the lowest value in the 68% C.L. as in Table 10. The black solid line has the same parameters but no interaction. (b) The black solid line corresponds to a noninteracting model with and . The red dot-dashed line describes model II listed in the first column of Table 11 with . The green dashed line corresponds to Planck best-fit model III (see Table 12), and the blue dotted line, to Planck best-fit model IV (see Table 13).
Reuse & PermissionsThe likelihood of cold dark matter abundance , dark energy and couplings for the four models.
Reuse & Permissions
