Gamma-ray bursts (GRB's), short and intense pulses of low-energy γ rays, have fascinated
astronomers and astrophysicists since their unexpected discovery in the late sixties. During …

The cosmological gamma-ray burst (GRB) phenomenon is reviewed. The broad
observational facts and empirical phenomenological relations of the GRB prompt emission …

Gamma-ray bursts are the most luminous explosions in the Universe, and their origin and
mechanism are the focus of intense research and debate. More than three decades after …

We present a comprehensive sample of all gamma-ray burst (GRB) afterglows with known
distances, and we derive their conical opening angles based on observed broadband …

Gamma-ray burst afterglows are well described by synchrotron emission from relativistic
blast waves expanding into an external medium. The blast wave is believed to amplify the …

▪ Abstract The gamma ray burst phenomenon is reviewed from a theoretical point of view,
with emphasis on the fireball shock scenario of the prompt emission and the longer …

We consider all bursts with known redshift and νF ν peak energy, E. For a good fraction of
them an estimate of the jet opening angle is available from the achromatic break of their …

We extend our calculation of physical parameters of gamma-ray burst (GRB) jets by
modeling the broadband emission of the afterglows 970508, 980519, 991208, 000926 …

We present a systematic temporal and spectral study of all Swift-X-ray Telescope
observations of gamma-ray burst (GRB) afterglows discovered between 2005 January and …

Observations by the RHESSI satellite of the large polarization of the prompt γ-ray emission
from γ-ray burst (GRB) 021206 imply that the magnetic field coherence scale is larger than …