NDLI: Observational Constraints of Red-shift Parametrization Parameters of Dark Energy in Horava-Lifshitz Gravity

Content Provider	Springer Nature Link
Author	Biswas, Ritabrata Debnath, Ujjal
Copyright Year	2014
Abstract	We have assumed that the FRW universe filled with baryonic matter, radiation and dark matter along with dark energy in the frame-work of Horava-Lifshitz gravity. Here three parameterizations like Linear, CPL and JBP for the dark energy have been assumed for the variations of EOS parameter w(z). The observational data analysis by χ $^{2}$ minimum test have been analyzed for our models. From Stern, Stern+BAO and Stern+BAO+CMB joint data analysis, we have obtained the bounds of the arbitrary parameters w $_{0}$ and w $_{1}$. The best fit values of the parameters w $_{0}$ and w $_{1}$ for these three models and the minimum values of χ $^{2}$ have been obtained by observational data analysis. Also the bounds of the parameters w $_{0}$ and w $_{1}$ are obtained by 66 %, 90 % and 99 % confidence levels for linear, CPL and JBP models. Next red shift-magnitude observational data points from type Ia supernovae have been considered and which contains 557 data points. From this observation, the distance modulus μ(z) against red shift z has been investigated for our predicted theoretical model (three DE models) for the best fit values of the parameters and the observed SNe Ia Union2 data sample. Finally, we have investigated that our predicted theoretical three models permitted the observational data sets.
Starting Page	341
Ending Page	357
Page Count	17
File Format	PDF
ISSN	00207748
Journal	International Journal of Theoretical Physics
Volume Number	54
Issue Number	2
e-ISSN	15729575
Language	English
Publisher	Springer US
Publisher Date	2014-07-06
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Horava gravity Redshift Physics Quantum Physics Elementary Particles, Quantum Field Theory Theoretical, Mathematical and Computational Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Mathematics

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