期刊
GENERAL RELATIVITY AND GRAVITATION
卷 37, 期 4, 页码 667-674出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10714-005-0054-7
关键词
exact solution; Einstein equation; black hole
In this work we study static perfect fluid stars in 2+1 dimensions with an exterior BTZ spacetime. We found the general expression for the metric coefficients as a function of the density and pressure of the fluid. We found the conditions to have regularity at the origin throughout the analysis of a set of linearly independent invariants. We also obtain an exact solution of the Einstein equations, with the corresponding equation of state p = p(rho), which is regular at the origin.
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