Observational consequences of a dark interaction model

Abstract

We study a model with decay of dark energy and creation of the dark matter particles. We integrate the field equations and find the transition redshift where the evolution process of the universe change the accelerated expansion, and discuss the luminosity distance, acoustic oscillations and the statefinder parameters.

Cosmological equation of state and interacting energies

“…Using these data in Eq. (27) and Eq. (28) it is possible to get a value for η, this value is 3.95 ± 0.24, while in [32] the value was 3.82.…”

“…Most of the models developed until the present time, have studied the dark energy and dark matter coupling; some authors have concluded that there is a energy transfer from dark matter to dark energy, while others stand for the opposite. Thus this is an issue involving much controversy [23][24][25][26][27][28].…”