89 citations · 506 across the 21 of their papers we have counts for
10 papers · 1 filter
Gamma-rays from black hole coronae: disentangling the leptonic and hadronic contributions
Sébastien Le Bihan, Daniel Grošelj, Martin Lemoine
IceCube detections of TeV neutrinos from nearby Seyfert galaxies imply, if confirmed, that the accompanying gamma rays are substantially reprocessed down to the MeV range by electr…
Dependence of Particle Acceleration Efficiency on Shock Velocity in Weakly Magnetized Electron-Ion Shocks
Taiki Jikei, Daniel Groselj, Lorenzo Sironi
Using unprecedentedly long 2D particle-in-cell simulations, we study electron and ion acceleration in weakly magnetized quasi-parallel shocks, propagating at velocities ranging fro…
High-energy Emission from Turbulent Electron-ion Coronae of Accreting Black Holes
Daniel Groselj, Alexander Philippov, Andrei M. Beloborodov +1
We develop a model of particle energization and emission from strongly turbulent black-hole coronae. Our local model is based on a set of 2D radiative particle-in-cell simulations…
Magnetic Field Amplification and Particle Acceleration in Weakly Magnetized Trans-relativistic Electron-ion Shocks
Taiki Jikei, Daniel Groselj, Lorenzo Sironi
We investigate the physics of quasi-parallel trans-relativistic shocks propagating in weakly magnetized plasmas by means of long-duration two-dimensional particle-in-cell simulatio…
An outflow from the X-ray corona as the origin of millimeter emission from radio-quiet AGN
A. Hankla, A. Philippov, R. Mbarek +4
Recent observations of radio-quiet active galactic nuclei (RQAGN) have shown the presence of millimeter emission, whose origin remains unknown, from within parsec scales of the cen…
Leaking Outside the Box: Kinetic Turbulence with Cosmic-Ray Escape
Evgeny A. Gorbunov, Daniel Grošelj, Fabio Bacchini
We study particle acceleration in strongly turbulent pair plasmas using novel 3D Particle-in-Cell simulations, featuring particle injection from an external heat bath and diffusive…