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- W2765896875 abstract "We study the structure of relativistic stars in $mathcal{R}+alpha mathcal{R}^{2}$ theory using the method of matched asymptotic expansion to handle the higher order derivatives in field equations arising from the higher order curvature term. We find solutions, parametrized by $alpha$, for uniform density stars matching to the Schwarzschild solution outside the star. We obtain the mass-radius relations and study the dependence of maximum mass on $alpha$. We find that $M_{max} propto alpha^{-3/2}$ for values of $alpha$ larger than $10~{rm km^2}$. For each $alpha$ the maximum mass configuration has the biggest compactness parameter ($eta = GM/Rc^2$) and we argue that the general relativistic stellar configuration corresponding to $alpha=0$ is the most compact among these." @default.
- W2765896875 created "2017-11-10" @default.
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- W2765896875 date "2016-04-07" @default.
- W2765896875 modified "2023-09-27" @default.
- W2765896875 title "Relativistic Stars in Starobinsky gravity matched asymptotic expansion" @default.
- W2765896875 hasPublicationYear "2016" @default.
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