Deceleration parameter
Cosmological Models in Lyra Geometry with Linearly Varying Deceleration Parameter
... Cosmological models with linearly varying deceleration parameter in the cosmological theory based on Lyra’s geometry have been discussed. Exact solutions have been obtained for a spatially flat FRW model by ...
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Bianchi Type-VIo Wet Dark Fluid Cosmological Model with Linearly Varying Deceleration Parameter in f(R,T) Gravity
... In this paper, Bianchi type- VIo cosmological model with Wet Dark Fluid (WDF) in f(R,T) gravity , where R is the Ricci scalar and T the trace of stress energy-momentum tensor, in the context of late time accelerating ...
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Bianchi Type IX Anisotropic Dark Energy Cosmological Models with Time Dependent Deceleration Parameter
... the deceleration parameter ...and deceleration parameter q play an important role in describing the nature of evolution of the ...Hubble’s parameter to obtain the cosmological solutions ...
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Bianchi Type-III Universe with Anisotropic Dark Energy and Special form of Deceleration Parameter
... In the present paper, the Bianchi type-III cosmological models with anisotropic dark energy and special form of deceleration parameter have been studied. To have a general description of an anisotropic dark ...
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Interacting Holographic Dark Energy in Bianchi Type V Universe with Variable Deceleration Parameter
... The present study deals with spatially homogeneous and anisotropic Bianchi Type-V universe filled with interacting dark matter and holographic dark energy. The exact solutions of Einstein’s equations are obtained by ...
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Subhorizon linear Nash perturbations with joint analysis of cosmic growth and expansion with constrains on Hz and the deceleration parameter qz
... the analysis on the cosmokinetics quantities, i.e., H(z) and the deceleration parameter q(z). The cosmography analysis on CMB and BAO observations is model de- pendent and may lead to higher statistical ...
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Deceleration Parameter Q(Z) and Examining If a Joint DM DE Model Is Feasible, with a Revisit to the Question of Cosmic Singularities
... If a way to obtain a graviton mass in four dimensions is done which fits in with the as given higher 5 dimensions specified by a slight modification of brane theory, or Maarten’s cosmological evolution [10] [11] ...
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LRS Bianchi Type-I Cosmological Model with Variable Deceleration Parameter
... In this paper we have studied a spatially homogeneous and isotropic LRS Bianchi Type-I cosmological model with the variable deceleration parameter.We have obtained some importantcosmological parameters and ...
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Interacting dark fluids in bianchi type-i universe with variable deceleration parameter
... varying deceleration parameter in scalar tensor theory of gravitation has been studied by ...constant deceleration parameter whereas Sarkar [59] has investigated holographic dark energy model ...
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A Kaluza Klein Treatment of a Graviton and Deceleration Parameter Q(Z) as an Alternative to Standard DE and Its Possible Link to Standard DE Equation of State as Given by Li, Li, Wang and Wang, in 2017
... that say 1000 times Planck length, we have the beginning of say creation of 100 mini black holes, each of mass about 100 times Planck mass which would put a huge restriction upon the adm[r] ...
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Identifying a Kaluza Klein Treatment of a Graviton Permitting a Deceleration Parameter q(z) as an Alternative to Standard DE
... Equation 13 models what happens for axions in the sun, and we hope to eventually obtain a similar rate expression of graviton production for Kaluza Klein gravitons as given in Equation 7[r] ...
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Interacting Dark Fluids in LRS Bianchi Type II Universe
... Hubble parameter ( H ) and deceleration parameter ( q ) were duly defined for characterizing the expansion history of the ...new parameter called as statefinder parameter as ...
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Bianchi Type I Cosmological Models with Expansion Driven by Particle Creation
... [29] and Abramo and Lima [30] have considered inflationary cosmological models with matter creation. In these papers the authors obtained the conditions for inflation; they proposed a minimally modified hot big-bang model ...
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Anisotropic Cosmological Model of Cosmic String with Bulk Viscosity in Lyra Geometry
... The deceleration parameter (q) is grater than zero shows that the spatial volume decreases uniformly with ‘𝑡’ and ultimately the universe may collapse at some ...anisotropy parameter ‘𝐴’ is not equal ...
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Super Exponential Expansion for Dark Energy Model with Variable Λ in f (R, T) Gravity
... In this work, we have investigated a flat FRW space-time in f R T ( , ) gravity with cosmological constant in the presence of perfect fluid, formulated by Harko et al. [10]. The field equations of the theory have been ...
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Certain Investigation On The Higher Dimensional LRS Bianchi Type-I Cosmological Model Universe Interacting With Perfect Fluid In Lyra Manifold
... (21) There are two independent equations involving four unknowns A, p and ρ. So, in order to get deterministic solutions of the above set of highly nonlinear Eqns. (20)- (21), we shall use the special law of variation ...
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Constraining The Hubble Parameter Using Distance Modulus - Redshift Relation
... the deceleration parameter ! ! to constrain the Hubble constant using data obtained from NED and possibly trace the evolution of the Hubble parameter as a function of redshift ...
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Vol 2, No 11 (2011)
... Bianchi type-V universe is generalization of the open universe in FRW cosmology and hence its study is important in the study of dark energy models in a universe with non-zero curvature (Coles and Ellis 1994).This is the ...
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Numerical Solution For The Deceleration of A Rotating Disk in A Viscous Fluid
... The numerical results have been obtained for different values of parameter s for range 100 s 0 on three different grid sizes namely h = 0.05, 0.025 and 0.0125. In order to check the accuracy of the numerical ...
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SAVITZKY-GOLAY METHOD FOR THE EVALUATION OF DECELERATION OF THE FIRCTION LIFT
... type accelerometer made by Pololu 5 company. The device was joined with PC class computer. Both „aop” delay parameter and „s” parameter of the free fall distance were recorded. The lat- ter was recorded by ...
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