activity
20242026
most citedThe impact of resistivity on the variability of black hole accretion flows

7 citations · 7 across the 4 of their papers we have counts for

collaborators

5 papers

physics.comp-ph2026

An adaptive framework for the axisymmetric pulsar magnetosphere using physics-informed Kolmogorov-Arnold networks

Spyros Rigas, Ioannis Contopoulos, Georgios Alexandridis +1

The pulsar magnetosphere has only recently been addressed using Physics-Informed Neural Networks (PINNs), by deploying a domain-decomposition approach and treating the separatrix a…

astro-ph.HE2026

The azimuthal structure of magnetically arrested disks during flux eruption events

Argyrios Loules, Antonios Nathanail, Ioannis Contopoulos

We analyze data from a standard 3D general-relativistic magnetohydrodynamics (GRMHD) simulation, focusing on equatorial slices in order to examine the details and the evolution of…

astro-ph.HE2025

High-energy radiation from the pulsar Equatorial Current Sheet

Ioannis Contopoulos, Jerome Petri, Ioannis Dimitropoulos

Pulsars emit beams of radiation that reveal the extreme physics of neutron star magnetospheres. Yet, their understanding remains incomplete. Recent global Particle-in-Cell (PIC) si…

astro-ph.HE20247 cited

The impact of resistivity on the variability of black hole accretion flows

Antonios Nathanail, Yosuke Mizuno, Ioannis Contopoulos +4

Context. The accretion of magnetized plasma onto black holes is a complex and dynamic process, where the magnetic field plays a crucial role. The amount of magnetic flux accumulate…

astro-ph.HE2024

Flares from plasmoids and current sheets around Sgr A*

I. Dimitropoulos, A. Nathanail, M. Petropoulou +2

The supermassive black hole Sgr A* at the center of our galaxy produces repeating near-infrared flares that are observed by ground and space based instruments. This activity has be…