11 papers
Hybrid Simulations of Proton Acceleration at Oblique High- Shocks
Yevhen Kylivnyk, Damiano Caprioli, Luca Orusa
Collisionless shocks in the intracluster and intergalactic medium (ICM/IGM) are expected to energize both electrons and ions. While electron acceleration is revealed by prominent r…
The role of three-dimensional effects on ion injection and acceleration in perpendicular shocks
Luca Orusa, Damiano Caprioli, Lorenzo Sironi +1
Understanding the conditions that enable particle acceleration at non-relativistic collisionless shocks is essential to unveil the origin of cosmic rays. We employ 2D and 3D hybrid…
Ion Weibel Instability in the hybrid framework: the optimal resolution
Luca Orusa, Taiki Jikei
The study of collisionless shocks and their role in cosmic-ray acceleration has gained increasing importance through both observations and simulations. Accurately modeling the shoc…
New determination of the neutrino hadronic production cross sections from GeV to beyond PeV energies
Luca Orusa, Mattia Di Mauro, Fiorenza Donato
The flux of astrophysical neutrinos is now measured with unprecedented accuracy and over several decades of energy spectrum. Their origin traces back to hadronic collisions between…
Self-confinement of relativistic pair beams in magnetized interstellar plasmas: the case of pulsar X-ray filaments
Luca Orusa, Lorenzo Sironi
The observation of filamentary X-ray structures near bow-shock pulsar wind nebulae (PWNe) -- such as the Guitar, Lighthouse, and PSR J20304415 nebulae -- and of slow-diffusion r…
Deep Learning Analysis of Ions Accelerated at Shocks
Paxson Swierc, Damiano Caprioli, Luca Orusa +1
We study the application of deep learning techniques to the analysis and classification of ions accelerated at collisionless shocks in hybrid (kinetic ions--fluid electrons) simula…