Speaker
Luis Urena-Lopez
(Universidad de Guanajuato, Mexico)
Description
We study here phantom models of dark energy represented by a scalar field and with tracker properties. By means of a change of polar-like of variables, we study a general class of models classified in terms of a set of three free parameters. Upon comparison of the models with observations, and considering Bayesian evidence, our results suggest a preference for phantom-like dark energy and possibly a negative cosmological constant.
Primary authors
Luis Urena-Lopez
(Universidad de Guanajuato, Mexico)
Dr
Nandan Roy
(Centre for Theoretical Physics \& Natural Philosophy, Mahidol University)
Dr
Francisco Linares Cedeño
(Mesoamerican Centre for Theoretical Physics, Universidad Autónoma de Chiapas)
