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Blandford-Znajek mechanism

(Blandford-Znajek process)
(extraction of black-hole rotational energy by magnetized accretion disk)

The Blandford-Znajek mechanism (or Blandford-Znajek process) is a means by which a magnetized accretion disk can extract rotational energy from a spinning black hole. The theory was developed in 1977 by Roger Blandford and Roman Znajek. It is a possible mechanism by which quasars are powered.


(astrophysics,black holes)
http://en.wikipedia.org/wiki/Blandford-Znajek_process

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