【摘 要】
：
An analytical expression for the jet power extracted from the disc (JPEFD) is derived based on an equivalent circuit in black hole magnetosphere with a mapping
【机 构】
：
Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
论文部分内容阅读
An analytical expression for the jet power extracted from the disc (JPEFD) is derived based on an equivalent circuit in black hole magnetosphere with a mapping relation between the radial coordinate of the disc and that of unknown astrophysical load. It tus out that this JPEFD is comparable with two other JPEFDs derived in the Poynting flux and hydrodynamic regimes, respectively. In addition, the relative importance of this JPEFD relative to the Blandford-Znajek power is discussed. It is shown that the BZ power is generally dominated by the JPEFD except in some extreme cases. Furthermore, we show that the JPEFD derived in our model can be well fitted with the jet power of 3C 273.
其他文献
新媒体技术的广泛应用,使高校大学生的思想政治教育机遇与挑战并存。本文从新媒体的概念入手,客观分析了新媒体对大学生思想政治教育带来的积极与消极影响,并结合实际,提出从
维吾尔文献是我国民族文献很重要的组成部分。探讨了维吾尔文献数字化的意义、基本原则、范围、内容、实施方法及其相关技术等,分析了维吾尔文献数字化的现状和发展趋势。
U
Using the equation of motion, we investigate theoretically the dynamical ac conductance of a clean Luttingerliquid quantum wire adiabatically coupled to Fermi l
We treat Haldanes model by the standard Dirac procedure. After canonical quantization, the coordinates of the particle become noncommutative, and the commutatio
ZnS nanorods were synthesized using solvothermal process with ethylenediamine as a bidentate ligand to form Zn2+ complexes and dodecylthiol providing an effecti
A novel full-functional photorefractive small molecular material, (9-ethyl-9H-carbazol-3-ylmethylene)-(4-nitro-phenyl)-amine (ECYENPA), was synthesized and its
在沿江、沿海棉区,棉花大量开花结铃的7、8月份,往往都要遭到台风的袭击。据1959～1986年28年间的统计,受合风影响的有44次,平均每年1.6次。尤其近几年,台风活动频繁,一般风力
The particle-number fluctuations due to collective excitations are calculated for a one-dimensional interacting Bose-condensed gas confined in a harmonic potent
We study the problem of standing shocks in viscous disc-like accretion flows around black holes. For the first time we parametrize such a flow with two physical
Using the hybrid model and the neutrino jet rocket model, we calculate the magnetic fields and the initial periods of 72 pulsars. We probe into the possible con