activity
20232026
most citedMagnetically arrested disk flux eruption events to describe SgrA* flares

11 citations · 11 across the 5 of their papers we have counts for

collaborators

6 papers

astro-ph.HE2026

Composition-dependent acceleration of UHE Cosmic Rays in AGN electric fields

E. Koutsoumpou, I. Contopoulos, A. Nathanail +2

The origin of ultra-high-energy cosmic rays (UHECRs) remains elusive, as proposed acceleration mechanisms are rarely connected directly to composition-sensitive air-shower observab…

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

Exploring the impact of electromagnetic dissipation on ultra-relativistic plasma outflows

Argyrios Loules, Nektarios Vlahakis

Ultra-relativistic plasma outflows are intrinsically connected with gamma-ray bursts. Over the years, a large number of analytical and numerical works has been devoted to understan…

astro-ph.HE2025★ 11 cited

Magnetically arrested disk flux eruption events to describe SgrA* flares

Eleni Antonopoulou, Argyrios Loules, Antonios Nathanail

Context. Magnetically arrested disks are among the most suitable candidates for describing the gas accretion and observed emission in the vicinity of supermassive black holes. Aims…

astro-ph.HE2024

Modeling of resistive relativistic astrophysical jets. Semianalytic results following a paraxial formalism

Argyrios Loules, Nektarios Vlahakis

Relativistic jets of magnetized plasma are a common high-energy astrophysical phenomenon, observed across a wide range of spatial and energy scales. In the past, semianalytic merid…

astro-ph.HE2023

Relativistic shocks in conductive media

Argyrios Loules, Nektarios Vlahakis

Relativistic shocks are present in all high-energy astrophysical processes involving relativistic plasma outflows interacting with their ambient medium. While a well understood pro…