261 citations · 2.1k across the 57 of their papers we have counts for
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Higher dimensional black hole scalarization
Dumitru Astefanesei, Carlos Herdeiro, João Oliveira +1
In the simplest scalar-tensor theories, wherein the scalar field is non-minimally coupled to the Ricci scalar, spontaneous scalarization of electrovacuum black holes (BHs) does not…
Dynamically and thermodynamically stable black holes in Einstein-Maxwell-dilaton gravity
Dumitru Astefanesei, Jose Luis Blázquez-Salcedo, Carlos Herdeiro +2
We consider Einstein-Maxwell-dilaton gravity with the non-minimal exponential coupling between the dilaton and the Maxwell field emerging from low energy heterotic string theory. T…
Rotating Boson Stars in 2+1 Dimensions
Dumitru Astefanesei, Eugen Radu
We consider rotating boson star solutions in a three-dimensional anti-de Sitter spacetime and investigate the influence of the rotation on their properties. The mass and angular mo…
Boson stars with negative cosmological constant
Dumitru Astefanesei, Eugen Radu
We consider boson star solutions in a -dimensional, asymptotically anti-de Sitter spacetime and investigate the influence of the cosmological term on their properties. We find t…
Quantum effects in a rotating spacetime
Eugen Radu, Dumitru Astefanesei
The behavior of a arbitrary coupled quantum scalar field is studied in the background of the Gödel spacetime. Closed forms are derived for the effective action and the vacuum expec…
On the gravitational field of a point mass in Einstein Universe background
D. Astefanesei, E. Radu
Some properties of an exact solution due to Vaidya, describing the gravitational field produced by a point particle in the background of the static Einstein universe are examined.…