Synchrotron emission and gamma-ray bursts

Journal Article · Sun Feb 01 04:00:00 EST 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/164965· OSTI ID:6215984

Brainerd, J J; Lamb, D Q

The parameter space within which synchrotron emission models for gamma-ray burst spectra are valid is evaluated in the cases of thermal and power-law particle distributions. The spectra emitted by noncooling and cooling thermal and power-law particle distributions are modeled numerically over relativistic and nonrelativistic regimes. The structure of the radiation is defined near the fundamental and the continuum up to the 1000th harmonic. Comparisons are made with burst event data collected during the Apollo 16, Venera, SMM, Pioneer Venus Orbiter and Hackucho missions. A two-component synchrotron model is proposed for gamma-ray burst events. The electron-positron distribution is projected to have a thermal component and a nonthermal power-law tail. 71 references.

• Research Organization: Harvard-Smithsonian Center for Astrophysics, Cambridge, MA
• OSTI ID: 6215984
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 313; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640101* -- Astrophysics & Cosmology-- Cosmic Radiation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BREMSSTRAHLUNG
COMPARATIVE EVALUATIONS
COSMIC GAMMA BURSTS
COSMIC RADIATION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
EMISSION SPECTRA
FERMIONS
IONIZING RADIATIONS
LEPTONS
MATHEMATICAL MODELS
POSITRONS
PRIMARY COSMIC RADIATION
RADIATIONS
SPECTRA
SYNCHROTRON RADIATION
TEMPERATURE DISTRIBUTION