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Blandford-Znajek process as a gamma ray burst central engine

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arxiv astro-ph/9905373 v1 pith:GMNDA5KA submitted 1999-05-28 astro-ph

Hyun Kyu Lee(Hanyang University) , R.A.M.J. Wijers , G.E. Brown(State University of New York , Stony Brook) This is my paper · ORCID
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keywords blackcentraldiskenergyenginefluxholemagnetic
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abstract

We investigate the possibility that gamma-ray bursts are powered by a central engine consisting of a black hole with an external magnetic field supported by a surrounding disk or torus. The rotational energy of the black hole can be extracted electromagnetically as a Poynting flux, a mechanism proposed by Blandford and Znajek(1977). Recently observed magnetars indicate that some compact objects have very high magnetic fields, up to $10^{15}$ G, which is required to extract the energy within the duration of a GRB, i.e., in 1000 s or less. We demonstrate also that the Poynting flux need not be substantially dominated by the disk.

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Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 3 citations worldwide. Full citation record

  1. Variabilities driven by satellite black hole migration in AGN disks

    astro-ph.HE 2025-01 conditional novelty 6.0 of 10

    Migrating satellite black holes in AGN disks can trigger magnetic reconnection, heating the disk and producing X-ray flares lasting 10^3 to 10^6 seconds with luminosities 10^38 to 10^42 erg/s.

  2. Reincarnations of massive stars in active galactic nucleus discs

    astro-ph.GA 2026-07 conditional novelty 5.0 of 10

    Supernova remnants inside AGN discs can re-collapse into seed clouds that grow and spawn new massive stars, with yields up to hundreds per event for 10^8-solar-mass black holes.

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