NDLI: Anisotropic model of a dark energy dominated universe with hybrid expansion law

Content Provider	Springer Nature Link
Author	Kumar, Suresh
Copyright Year	2013
Abstract	The dynamics of the Universe is studied in the framework of a spatially homogeneous Bianchi-V space-time filled with a perfect fluid composed of non-interacting matter and dynamical dark energy components. We determine the Bianchi-V space-time by considering a hybrid expansion law (HEL) for the average scale factor that yields power-law and exponential-law cosmologies in its special cases. In the HEL cosmology, the Universe exhibits a transition from deceleration to acceleration. We find that the HEL Universe in the framework of Bianchi-V space-time is anisotropic at early stages of evolution and becomes isotropic at late times. The dynamic dark energy in this Universe does not show a departure from the usual cosmological constant at later times.
Starting Page	284
Ending Page	287
Page Count	4
File Format	PDF
ISSN	02022893
Journal	Gravitation and Cosmology
Volume Number	19
Issue Number	4
e-ISSN	19950721
Language	English
Publisher	Springer US
Publisher Date	2013-11-27
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Classical and Quantum Gravitation, Relativity Theory Astronomy, Observations and Techniques Astrophysics and Astroparticles Quantum Physics
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics

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Anisotropic model of a dark energy dominated universe with hybrid expansion law