Origin of the bright prompt optical emission in the naked eye burst

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3509278· OSTI ID:21439592

Hascoeet, R; Daigne, F; Mochkovitch, R

The huge optical brightness of GRB 080319B (the 'Naked Eye Burst') makes this event really challenging for models of the prompt GRB emission. In the framework of the internal shock model, we investigate a scenario where the dominant radiative process is synchrotron emission and the high optical flux is due to the dynamical properties of the relativistic outflow : if the initial Lorentz factor distribution in the jet is highly variable, many internal shocks will form within the outflow at various radii. The most violent shocks will produce the main gamma-ray component while the less violent ones will contribute at lower energy, including the optical range.

• OSTI ID: 21439592
• Journal Information: AIP Conference Proceedings, Vol. 1279, Issue 1; Conference: Conference on deciphering the ancient universe with gamma-ray bursts, Kyoto (Japan), 19-23 Apr 2010; Other Information: DOI: 10.1063/1.3509278; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTROPHYSICS
BRIGHTNESS
COSMIC GAMMA BURSTS
COSMIC PHOTONS
GAMMA ASTRONOMY
PHOTON EMISSION
RELATIVISTIC RANGE
SHOCK WAVES
SYNCHROTRON RADIATION
ASTRONOMY
BOSONS
BREMSSTRAHLUNG
COSMIC RADIATION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
EMISSION
ENERGY RANGE
IONIZING RADIATIONS
MASSLESS PARTICLES
OPTICAL PROPERTIES
PHOTONS
PHYSICAL PROPERTIES
PHYSICS
PRIMARY COSMIC RADIATION
RADIATIONS