Afterglow radiation in gamma-ray bursts (GRB), extending from the radio band to GeV
energies, is produced as a result of the interaction between the relativistic jet and the …

Due to relativistic bulk motion, the structure and orientation of gamma-ray burst (GRB) jets
have a fundamental role in determining how they appear. The recent discovery of the …

For decades, gamma-ray bursts (GRBs) have been broadly divided into long-and short-
duration bursts, lasting more or less than 2 s, respectively. However, this dichotomy does not …

Gamma-ray bursts (GRBs) are explosive transient events occurring at cosmological
distances, releasing a large amount of energy as electromagnetic radiation over several …

The first multi-messenger detection of a binary neutron star merger, GW170817, brought to
the forefront the structured jet model as a way to explain multiwavelength observations taken …

AT2022cmc was recently reported as the first on-axis jetted tidal disruption event (TDE)
discovered in the last decade, and the fourth on-axis jetted TDE candidate known so far. In …

For a subpopulation of energetic gamma-ray bursts (GRBs), a moderate baryonic loading
may suffice to power ultra-high-energy cosmic rays (UHECRs). Motivated by this, we study …

We present the results of a detailed investigation of the prompt and afterglow emission in the
High Energy Stereoscopic System (HESS)-detected GRB 190829A. Swift and Fermi …

We explore the properties of photospheric emission in the context of long gamma-ray bursts
(GRBs) using three numerical models that combine relativistic hydrodynamical simulations …

Long duration gamma-ray bursts (GRBs) are among the least understood astrophysical
transients powering the high-energy universe. To date, various mechanisms have been …