Boosting jet power in black hole spacetimes

Details Boosting jet power in black hole spacetimes Boosting jet power in black hole spacetimes

2010-12-27

arxiv.org/abs/1012.5661v2

Proceedings of the National Academy of Sciences, Vol. 108, no. 31, pp. 12641-12646 (August 2011)

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

7 pages, 5 figures

Scientific paper

The extraction of rotational energy from a spinning black hole via the Blandford-Znajek mechanism has long been understood as an important component in models to explain energetic jets from compact astrophysical sources. Here we show more generally that the kinetic energy of the black hole, both rotational and translational, can be tapped, thereby producing even more luminous jets powered by the interaction of the black hole with its surrounding plasma. We study the resulting Poynting jet that arises from single boosted black holes and binary black hole systems. In the latter case, we find that increasing the orbital angular momenta of the system and/or the spins of the individual black holes results in an enhanced Poynting flux.

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