Impact of extended starobinsky model on evolution of anisotropic, vorticity-free axially symmetric sources
Loading...
Date
2015
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Cosmology and Astroparticle Physics
Abstract
We study the implications of Rn extension of Starobinsky model on dynamical
instability of Vorticity-free axially symmetric gravitating body. The matter distribution is
considered to be anisotropic for which modified field equations are formed in context of
f(R) gravity. In order to achieve the collapse equation, we make use of the dynamical
equations, extracted from linearly perturbed contracted Bianchi identities. The collapse
equation carries adiabatic index in terms of usual and dark source components, defining
the range of stability/insatbility in Newtonian (N) and post-Newtonian (pN) eras. It is found
that supersymmetric supergravity f(R) model represents the more practical substitute of
higher order curvature corrections.
Description
Keywords
Modified Gravity, Massive Stars, Dark Energy Theory
Citation
Noureen, I., Bhatti, A. A., & Zubair, M. (2015). Impact of extended Starobinsky model on evolution of anisotropic, vorticity-free axially symmetric sources. Journal of Cosmology and Astroparticle Physics, 2015(02), 033.