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Testing general relativity with present and future astrophysical observations
One century after its formulation, Einstein's general relativity (GR) has made remarkable predictions and turned out to be compatible with all experimental tests. Most of these tests probe the theoryExpand
Solar system effects in Schwarzschild de Sitter space time
Abstract The Schwarzschild–de Sitter space–time describes the gravitational field of a spherically symmetric mass in a universe with cosmological constant Λ . Based on this space–time we calculateExpand
New nonuniform black string solutions
We present nonuniform vacuum black strings in five and six spacetime dimensions. The conserved charges and the action of these solutions are computed by employing a quasilocal formalism. We findExpand
Modified gravity from the quantum part of the metric
It is shown that if a metric in quantum gravity can be decomposed as a sum of classical and quantum parts, then Einstein quantum gravity looks approximately like modified gravity with a nonminimalExpand
Perturbed black holes in Einstein-dilaton-Gauss-Bonnet gravity: Stability, ringdown, and gravitational-wave emission
Gravitational waves emitted by distorted black holes\char22{}such as those arising from the coalescence of two neutron stars or black holes\char22{}carry not only information about the correspondingExpand
Rotating boson stars and Q-balls
We consider axially symmetric, rotating boson stars. Their flat-space limits represent spinning Q-balls. We discuss their properties and determine their domain of existence. Q-balls and boson starsExpand
Charged particle interferometry in Plebański–Demiański black hole spacetimes
The Plebanski–Demianski solution is a very general axially symmetric analytical solution of the Einstein field equations generalizing the Kerr solution. This solution depends on seven parametersExpand
Black holes, gravitational waves and fundamental physics: a roadmap
The grand challenges of contemporary fundamental physics—dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem—all involve gravityExpand
Wormholes in dilatonic Einstein-Gauss-Bonnet theory.
This work constructs traversable wormholes in dilatonic Einstein-Gauss-Bonnet theory in four spacetime dimensions, and demonstrates linear stability with respect to radial perturbations for a subset of these wormholes. Expand
Analytical solution of the geodesic equation in Kerr-(anti) de Sitter space-times
All observations in the gravitational domain can be explained by means of Einstein’s General Relativity. While for small scale gravitational effects (e.g. in the solar system) the standard EinsteinExpand