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arXiv · 1504.01251

Shearfree Condition and dynamical Instability in $f(R,T)$ gravity

Ifra Noureen·M. Zubair·A. A. Bhatti·G. Abbas
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Abstract

The implications of shearfree condition on instability range of anisotropic fluid in $f(R,T)$ are studied in this manuscript. A viable $f(R, T)$ model is chosen to arrive at stability criterion, where $R$ is Ricci scalar and $T$ is the trace of energy momentum tensor. The evolution of spherical star is explored by employing perturbation scheme on modified field equations and contracted Bianchi identities in $f(R, T)$. The effect of imposed shearfree condition on collapse equation and adiabatic index $\Gamma$ is studied in Newtonian and post-Newtonian regimes.

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Ifra Noureen, M. Zubair, A. A. Bhatti, G. Abbas. 2015-04-06. Shearfree Condition and dynamical Instability in $f(R,T)$ gravity. https://arxiv.org/abs/1504.01251

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