论文标题
球形积聚流到一般参数化球形对称黑洞空间
Spherical Accretion Flow onto General Parameterized Spherically Symmetric Black Hole Spacetimes
论文作者
论文摘要
黑洞积聚和光子球的存在的跨性别现象是黑洞地平线附近强重力场的特征。在这项工作中，我们研究球形积聚流到一般参数化的球形对称黑洞空位上。为此，我们分析了各种完美液体的吸积过程，例如分别超速，超偏好，超偏见和亚偏见类型和多蚀流体的等温流体。详细研究了一般参数化的球形对称黑洞中Schwarzschild黑洞以外的额外参数对上述测试液的流动行为的影响。另外，通过研究理想光子气体的积聚，我们进一步讨论了积聚光子气体的声音半径与光子球的对应关系，用于一般参数化的球形对称黑洞。还讨论了我们分析的一些未来扩展。
The transonic phenomenon of black hole accretion and the existence of the photon sphere are the characteristics of strong gravitational fields near a black hole horizon. In this work, we study spherical accretion flow onto a general parametrized spherically symmetric black hole spacetimes. For this purpose, we analyze the accretion process of various perfect fluids, such as the isothermal fluid of ultra-stiff, ultra-relativistic, and sub-relativistic types and polytropic fluid, respectively. The influences of extra parameters beyond the Schwarzschild black hole in the general parameterized spherically symmetric black hole on the flow behaviors of the above-mentioned test fluids are studied in detail. In addition, by studying the accretion of ideal photon gas, we further discuss the correspondence between the sonic radius of accreting photon gas and the photon sphere for the general parameterized spherically symmetric black hole. Some possible future extensions of our analysis are also discussed.
