2008/01/31 by Enrico Barausse, Thomas P. Sotiriou, John C. Miller
Physics and Astronomy · #gr-qc
paper · pdf · doi:10.1051/eas:0830023
published as EAS Publ.Ser.30:189-192,2008 · Talk given by EB at the 30th Spanish Relativity Meeting, 10 - 14 September 2007, Tenerife (Spain). Based on arXiv:gr-qc/0703132 and arXiv:0712.1141 [gr-qc]
arxiv created 2008/01/31 · arxiv updated 2011/08/31
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.