Work

On the Efficiency of Internal Shocks in Gamma-Ray Bursts

Year: 2000

Type: article

Abstract: The fraction of a fireball kinetic energy that is radiated by internal shocks is sensitive to the amplitude of initial fluctuations in the fireball. We give a simple analytical description for the dissipation of modest-amplitude fluctuations and confirm it with direct numerical simulations. At high amplitudes, the dissipation occurs in a nonlinear regime with efficiency approaching 100%. Most of the fireball energy can then be radiated away by the prompt gamma-ray burst, and only a fraction remains for the afterglow.

Source: The Astrophysical Journal

DOI: 10.1086/312830

Author: Andrei M. Beloborodov

Institutions: P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Astro Space Center

Language: English

Topic: Gamma-ray bursts and supernovae

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W1979323369

FWCI: 4.627

Cites: 8

Cited by: 123

Related to: 10