Structure Formation in a Variable Dark Energy Model and Observational Constraints

摘要: The interpretation of a vast number cosmological observations in the framework FRW models suggests that major part energy density universe is form dark with still unknown physical nature. In some for energy, which are motivated by particle physics theory, equation state and contribution to can be variable. Here we study structure formation parameterized model, compare its predictions recent observational data, from Supernova Ia gold sample parameters large scale determined 2-degree Field Galaxy Redshift Survey (2dFGRS), put constraints on free this model.