Effect of Conversion Efficiency on Gamma-Ray Burst Energy

Details Effect of Conversion Efficiency on Gamma-Ray Burst Energy Effect of Conversion Efficiency on Gamma-Ray Burst Energy

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004chjaa...4..267x&link_type=abstract

Chinese Journal of Astronomy & Astrophysics, Vol. 4, Issue 3, p. 267-274

Astronomy and Astrophysics

Astrophysics

2

Gamma Rays: Bursts, Ism: Jets

Scientific paper

Beaming effect makes it possible that gamma-ray bursts have a standard energy, but the gamma-ray energy release is sensitive to some parameters. Our attention is focused on the effect of the gamma ray conversion efficiency (ηγ), which may range between 0.01 and 0.9, and which probably has a random value for different GRBs under certain conditions. Making use of the afterglow data from the literature, we carried out a complete correction to the conical opening angle formula. Within the framework of the conical jet model, we ran a simple Monte Carlo simulation for random values of ηγ, and found that the gamma-ray energy release is narrowly clustered, whether we use a constant value of ηγ or random values for different gamma-ray bursts.

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