Blandford–Znajek process

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An astrophysical process in which an external magnetic field is able to ‘tap’ the rotational energy of a rotating black hole, thereby making the black hole a powerful source of energy. There is some evidence that the process occurs around certain types of black hole. It was proposed by Roger Blandford and Roman Znajek in 1977. See also Penrose process.

Subjects: Physics.

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