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Showing 2010 · gr-qcShow all
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gr-qc2010★ 129 cited
Gravitational lensing by a regular black hole
Ernesto F. Eiroa, Carlos M. Sendra
In this paper, we study a regular Bardeen black hole as a gravitational lens. We find the strong deflection limit for the deflection angle, from which we obtain the positions and m…
gr-qc2010★ 305 cited
Null geodesics and shadow of a rotating black hole in extended Chern-Simons modified gravity
Leonardo Amarilla, Ernesto F. Eiroa, Gaston Giribet
The Chern-Simons modification to general relativity in four dimensions consists of adding to the Einstein-Hilbert term a scalar field that couples to the first class Pontryagin den…
gr-qc2010★ 36 cited
Wormholes and solitonic shells in five-dimensional DGP theory
Martín G. Richarte
We build five-dimensional spherically symmetric wormholes within the DGP theory. We calculate the energy localized on the shell, and we find that the wormholes could be supported b…