34 citations · 89 across the 16 of their papers we have counts for
6 papers · 1 filter
Measuring the properties of homogeneous turbulence in curved spacetimes
Rita Megale, Alejandro Cruz-Osorio, Giuseppe Ficarra +5
Turbulence in curved spacetimes in general, and in the vicinity of black holes (BHs) in particular, represents a poorly understood phenomenon that is often analysed employing techn…
Electromagnetic Energy Extraction from Kerr Black Holes: Ab-Initio Calculations
Claudio Meringolo, Filippo Camilloni, Luciano Rezzolla
The possibility of extracting energy from a rotating black hole via the Blandford-Znajek mechanism represents a cornerstone of relativistic astrophysics. We present general-relativ…
Aliasing Instabilities in the Numerical Evolution of the Einstein Field Equations
Claudio Meringolo, Sergio Servidio
The Einstein field equations of gravitation are characterized by cross-scale, high-order nonlinear terms, representing a challenge for numerical modeling. In an exact spectral deco…
Extreme Gravitational Interactions in the Problem of Three Black Holes in General Relativity
Mario Imbrogno, Claudio Meringolo, Sergio Servidio
We study the three-body problem going from Newtonian mechanics to general relativity. In the classical case, we model the interactions in a typical chaotic configuration, identifyi…
A spectral method algorithm for numerical simulations of gravitational fields
Claudio Meringolo, Sergio Servidio, Pierluigi Veltri
A numerical study of the Einstein field equations, based on the 3+1 foliation of the spacetime, is presented. A pseudo-spectral technique has been employed for simulations in vacuu…
A spectral approach to numerical simulations of the ADM equations
C. Meringolo, S. Servidio, P. Veltri
We present a numerical study of the Einstein equations, according to the Arnowitt-Deser-Misner (ADM) formalism, in order to simulate the dynamics of gravitational fields. We took i…