10 papers
FPIC: a new Particle-In-Cell code for stationary and axisymmetric black-hole spacetimes
Claudio Meringolo, Luciano Rezzolla
In this paper we present a newly developed GRPIC code framework called FPIC, providing a detailed description of the Maxwell-equations solver, of the particle ``pushers'', and of t…
Numerical simulations of waves and turbulence in coronal loops: observables and spectra
Fabio Feraco, Francesco Pucci, Claudio Meringolo +11
We investigate numerically the time evolution of velocity and magnetic field fluctuations in a coronal loop, focusing on the dynamics due to both phase mixing and turbulent cascade…
Particle-acceleration mechanisms in multispecies relativistic plasmas
Claudio Meringolo, Mario Imbrogno, Alejandro Cruz-Osorio +2
While collisionless plasmas are ubiquitously present near astrophysical compact objects, the impact that their composition has on the high-energy emission is presently unknown. We…
Supermassive black-hole imaging with a self-consistent electron-temperature prescription
Alejandro Cruz-Osorio, Claudio Meringolo, Christian M. Fromm +5
The recent 230 GHz observations by the Event Horizon Telescope have resolved the innermost structure of the M87 galaxy, revealing a ring-like feature consistent with thermal synchr…
Turbulence and Magnetic Reconnection in Relativistic Multispecies Plasmas
Mario Imbrogno, Claudio Meringolo, Alejandro Cruz-Osorio +3
Simulations of relativistic plasmas traditionally focus on the dynamics of two-species mixtures of charged particles under the influence of external magnetic fields and those gener…
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…