Solutions for f(R) gravity coupled with electromagnetic field

Details Solutions for f(R) gravity coupled with electromagnetic field Solutions for f(R) gravity coupled with electromagnetic field

2011-10-23

arxiv.org/abs/1110.5085v2

Eur. Phys. J. C. 72, 1851 (2012)

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages no figure, final version for publication in European Physical Journal C

Scientific paper

10.1140/epjc/s10052-011-1851-7

In the presence of external, linear / nonlinear electromagnetic fields we integrate f(R) \sim R+2{\alpha}\surd(R+const.) gravity equations. In contrast to their Einsteinian cousins the obtained black holes are non-asymptotically flat with a deficit angle. In proper limits we obtain from our general solution the global monopole solution in f(R) gravity. The scale symmetry breaking term adopted as the nonlinear electromagnetic source adjusts the sign of the mass of the resulting black hole to be physical.

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