TY - JOUR AU - Panotopoulos, G. PY - 2011 DA - 2011// TI - A dynamical dark energy model with a given luminosity distance T2 - Gen. Relativ. Gravit. JO - General Relativity and Gravitation SP - 3191 EP - 3199 VL - 43 IS - 11 PB - Springer/Plenum Publishers KW - Dark energy KW - Observational cosmology KW - Particle-theory AB - It is assumed that the current cosmic acceleration is driven by a scalar field, the Lagrangian of which is a function of the kinetic term only, and that the luminosity distance is a given function of the red-shift. Upon comparison with baryon acoustic oscillations and cosmic microwave background data the parameters of the models are determined, and then the time evolution of the scalar field is determined by the dynamics using the cosmological equations. We find that the solution is very different than the corresponding solution when the non-relativistic matter is ignored, and that the universe enters the acceleration era at larger red-shift compared to the standard I > CDM model. SN - 0001-7701 UR - http://arxiv.org/abs/1107.4475 UR - https://doi.org/10.1007/s10714-011-1230-6 DO - 10.1007/s10714-011-1230-6 LA - English N1 - WOS:000295982800015 ID - Panotopoulos2011 ER -