5 papers
Maximum Energy of Particles Accelerated in Gamma-Ray Burst Afterglow Shocks
Zhao-Feng Wu, SofÃa Guevara-Montoya, Paz Beniamini +3
Particle acceleration in relativistic collisionless shocks remains an open problem in high-energy astrophysics. Particle-in-cell (PIC) simulations predict that electron acceleratio…
Thermal Electrons in an Ultra-Relativistic Shock Shape the Optical Afterglow of GRB 250702F
Martin JelÃnek, Annarita Ierardi, Filip Novotný +8
Observing early optical emission from gamma-ray bursts (GRBs) contemporaneous with the MeV prompt emission phase remains rare, requiring rapid-response robotic facilities. The OndÅ…
The effect of inverse Compton losses on particle acceleration in three-dimensional relativistic reconnection
Ian Bowyer, Dimitrios Giannios, Lorenzo Sironi
Relativistic magnetic reconnection is a key mechanism for dissipating magnetic energy and accelerating particles in astrophysics. In the absence of radiative cooling, recent partic…
Relativistic Magnetic Reconnection in Astrophysical Plasmas: A Powerful Mechanism of Nonthermal Emission
Lorenzo Sironi, Dmitri A. Uzdensky, Dimitrios Giannios
Magnetic reconnection -- a fundamental plasma physics process, where magnetic field lines of opposite polarity annihilate -- is invoked in astrophysical plasmas as a powerful mecha…
Maximal Jet Energy of Gamma-Ray Bursts through the Blandford-Znajek Mechanism
Zhao-Feng Wu, Michail Damoulakis, Paz Beniamini +1
Gamma-ray bursts (GRBs) are among the most energetic events in the universe, driven by relativistic jets launched from black holes (BHs) formed during the collapse of massive stars…