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Poynting Flux Dominated Black Hole-Accretion Disk System as GRB Power House

Published online by Cambridge University Press:  26 May 2016

Hyun Kyu Lee  and
Hui-Kyung Kim
Hyun Kyu Lee
Affiliation:
Department of Physics, Hanyang University, Seoul 133-791, Korea
Hui-Kyung Kim
Affiliation:
Department of Physics, Hanyang University, Seoul 133-791, Korea

Abstract

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We investigate a black hole-accretion disk system which is dominated by Poynting flux to see whether it can be a possible power house for GRBs. For a set of GRBs for which the isotropic energy and Td are known, the effect of the disk mass and the magnetic field are discussed quantitatively using a simplified model. It is demonstrated explicitly that there is a lower limit on the angular momentum parameter for a given GRB energy. It is found that the most energetic GRBs can only accommodate relatively rapid-rotating black holes at the center.

Type
Part 9 Gamma Ray Bursters
Information
Symposium - International Astronomical Union , Volume 214: High Energy Processes and Phenomena in Astrophysics , 2003 , pp. 323 - 330
Copyright
Copyright © Astronomical Society of the Pacific 2003 

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