论文标题
反向旋转托里的素丝效应对积聚流的效果
Lense-Thirring effect on accretion flow from counter-rotating tori
论文作者
论文摘要
我们研究绕中央Kerr黑洞（BH）的反向旋转圆环的积聚流。我们表征了从轨道圆环的积聚物流的转弯点处的流属性，该条件是由条件$ u^ϕ = 0 $在流动速度速度上定义的。给出了沿BH旋转轴的反向旋转积聚流量和喷射样的流动转弯点位置。研究了反向旋转流量厚度和反向旋转的Tori Energetics的某些特性。从反向旋转的Tori吞咽的最大物质量取决于背景特性。快速旋转的BH能量主要取决于BH旋转，而不是反旋转液或托里质量的特性。转弯点位于狭窄的轨道电晕（球形壳）中，用于光子和物质流量成分，围绕BH固定极限（外层表面），具体取决于BH自旋 - 质量比率和流体初始动量。类似喷气流的旋转电晕具有更大的厚度，它与圆环流动的电晕分开，并且更接近BH静止极限。从圆环和喷气机中积聚的物质转弯点明确地独立于积聚和托里模型的细节。由于流量和温度的升高，可以观察到转弯电晕。在BH赤道平面上，电晕较大，它离中心吸引子最远，而BH杆上的电晕较大。
We study the accretion flow from a counter-rotating torus orbiting a central Kerr black hole (BH). We characterize the flow properties at the turning point of the accreting matter flow from the orbiting torus, defined by the condition $u^ϕ= 0$ on the flow torodial velocity. The counter-rotating accretion flow and jet-like flow turning point location along BH rotational axis is given. Some properties of the counter-rotating flow thickness and counter-rotating tori energetics are studied.The maximum amount of matter swallowed by the BH from the counter-rotating tori is determined by the background properties. The fast spinning BH energetics depends mostly on BH spin rather than on the properties of the counter-rotating fluids or the tori masses. The turning point is located in a narrow orbital corona (spherical shell), for photons and matter flow constituents, surrounding the BH stationary limit (outer ergosurface), depending on the BH spin-mass ratio and the fluid initial momentum only. The turning corona for jet-like-flow has larger thickness, it is separated from the torus flow turning corona and it is closer to the BH stationary limit. Turning points of matter accreting from torus and from jets are independent explicitly of the details of the accretion and tori model. The turning corona could be observable due to an increase of flow luminosity and temperature. The corona is larger on the BH equatorial plane, where it is the farthest from the central attractor, and narrower on the BH poles.
