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arxiv: 0801.4852 · v1 · pith:EJYHNGWDnew · submitted 2008-01-31 · 🌀 gr-qc

Polytropic spheres in Palatini f(R) gravity

Enrico Barausse , Thomas P. Sotiriou , John C. Miller This is my paper
classification 🌀 gr-qc
keywords gravitypalatinipolytropicspheresalternativecasescastingdegenerate
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We examine static spherically symmetric polytropic spheres in Palatini f(R) gravity and show that no regular solutions to the field equations exist for physically relevant cases such as a monatomic isentropic gas or a degenerate electron gas, thus casting doubt on the validity of Palatini f(R) gravity as an alternative to General Relativity.

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