Department of Physics and Astronomy, Brigham Young University, Provo, UT 84602, USA.
Proc Natl Acad Sci U S A. 2011 Aug 2;108(31):12641-6. doi: 10.1073/pnas.1019618108. Epub 2011 Jul 18.
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.
通过布兰福德-日纳耶克机制从旋转黑洞中提取旋转能量，长期以来一直被认为是解释来自致密天体源的高能喷流的模型中的重要组成部分。在这里，我们更普遍地表明，黑洞的动能，无论是旋转的还是平移的，都可以被利用，从而产生由黑洞与其周围等离子体相互作用驱动的更亮的喷流。我们研究了由此产生的来自单个增强黑洞和双黑洞系统的脉泽喷流。在后一种情况下，我们发现增加系统的轨道角动量和/或单个黑洞的自旋会导致脉泽通量增强。
