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 …

The current generation of very-high-energy gamma-ray (VHE; E> 30 GeV) detectors (MAGIC
and HESS) have recently demonstrated the ability to detect the afterglow emission of …

Emission from Gamma-ray bursts is thought to be powered mainly by synchrotron radiation
from energetic electrons. The same electrons might scatter these synchrotron seed photons …

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 …

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

The study of the high-energy part (MeV-GeV) of the spectrum of gamma-ray bursts (GRBs)
can play a crucial role in investigating the physics of prompt emission, but it is often …

The prompt emission spectra from gamma-ray bursts (GRBs) are often fitted with the
empirical “Band” function, namely two smoothly connected power laws. The typical slope of …

The emission region of γ-ray bursts (GRBs) is poorly constrained. The uncertainty on the
size of the dissipation site spans over 4 orders of magnitude (10 12–10 17 cm) depending …

We study the effect of Bethe–Heitler (BeHe) pair production on a proton synchrotron model
for the prompt emission in gamma-ray bursts (GRBs). The possible parameter space of the …