The ${\Omega }_{DE}-{\Omega }_M$ Plane in Dark Energy Cosmology

Abstract

The dark energy cosmology with the equation of state $w=constant$ is considered in this paper. The ${\Omega }_{DE}-{\Omega }_M$ plane has been used to study the present state and expansion history of the universe. Through the mathematical analysis, we give the theoretical constraint of cosmological parameters. Together with some observations such as the transition redshift from deceleration to acceleration, more precise constraint on cosmological parameters can be acquired.

15 pages including 7 figures. Accepted for publication in Modern Physics Letters A (MPLA)

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Cited by in corpus (2)

• Transition Redshift: New Kinematic Constraints from Supernovae
• Energy conditions and entropy density of the universe