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Synchrotron polarization signatures of surface waves in supermassive black hole jets
Jordy Davelaar, Bart Ripperda, Lorenzo Sironi +7
Supermassive black holes in active galactic nuclei (AGN) are known to launch relativistic jets, which are observed across the entire electromagnetic spectrum and are thought to be…
Comptonization by Reconnection Plasmoids in Black Hole Coronae III: Dependence on the Guide Field in Pair Plasma
Sanya Gupta, Navin Sridhar, Lorenzo Sironi
We perform two-dimensional particle-in-cell simulations of magnetic reconnection for various strengths of the guide field (perpendicular to the reversing field), in magnetically-do…
TeV neutrinos and hard X-rays from relativistic reconnection in the corona of NGC 1068
Damiano F. G. Fiorillo, Maria Petropoulou, Luca Comisso +2
The recent discovery of astrophysical neutrinos from the Seyfert galaxy NGC 1068 suggests the presence of non-thermal protons within a compact "coronal" region close to the central…
Electron Heating in 2D Particle-in-Cell Simulations of Quasi-Perpendicular Low-Beta Shocks
Aaron Tran, Lorenzo Sironi
We measure the thermal electron energization in 1D and 2D particle-in-cell (PIC) simulations of quasi-perpendicular, low-beta () collisionless ion-electron shocks with ma…
Generation of near-equipartition magnetic fields in turbulent collisionless plasmas
L. Sironi, L. Comisso, R. Golant
The mechanisms that generate "seed" magnetic fields in our Universe and that amplify them throughout cosmic time remain poorly understood. By means of fully-kinetic particle-in-cel…
Linear analysis of the Kelvin-Helmholtz instability in relativistic magnetized symmetric flows
Anthony Chow, Michael E. Rowan, Lorenzo Sironi +3
We study the linear stability of a planar interface separating two fluids in relative motion, focusing on the symmetric configuration where the two fluids have the same properties…