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- W2560278165 abstract "We study the stability of three analytical solutions of the Einstein's field equations for spheres of fluid. These solutions are suitable to describe compact objects including white dwarfs, neutron stars and supermassive stars and they have been extensively employed in the literature. We re-examine the range of stability of the Tolman VII solution, we focus on the stability of the Buchdahl solution which is under contradiction in the literature and we examine the stability of the Nariai IV solution. We found that all the mentioned solutions are stable in an extensive range of the compactness parameter. We also concentrate on the effect of the adiabatic index on the instability condition. We found that the critical adiabatic index, depends linearly on the ratio of central pressure over central energy density $P_c/{cal E}_c$, up to high values of the compactness. Finally, we examine the possibility to impose constraints, via the adiabatic index, on realistic equations of state in order to ensure stable configurations of compact objects." @default.
- W2560278165 created "2016-12-16" @default.
- W2560278165 creator A5044320792 @default.
- W2560278165 date "2016-12-06" @default.
- W2560278165 modified "2023-09-27" @default.
- W2560278165 title "The stability of relativistic stars and the role of the adiabatic index" @default.
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