论文标题
原始黑洞的动力学模型
Dynamical model for primordial black holes
论文作者
论文摘要
基于扩展的McVittie时空解决方案，在分析和数值上进行了原始黑洞。通过假设暗物质和辐射是由形成中心物体积聚的唯一能量来源，发现黑洞的质量进化取决于种子的初始质量，黑洞出现的时间以及暗物质颗粒的平均特殊速度。对原始黑洞的初始条件的约束源自黑孔积聚机制和宇宙学环境的概况。大量质量与我们的方法兼容。特别是，今天也可以从小种子中生成$ 10^{10} m _ {\ odot} $的质量。当种子的初始质量接近粒子 - 荷马质量时，会观察到新兴视野的孵育时间。还认为，只要忽略了中央物体附近的其他天体物理过程，麦克维蒂型描述与施瓦茨柴尔德解决方案是一致的。
Primordial black holes are analytically and numerically discussed based on the extended McVittie spacetime solution. By assuming that dark matter and radiation are the only sources of energy accreted by the forming central object, it is found that the black-hole mass evolution depends on the initial mass of the seed, the time in which the black hole emerges, and also on the average peculiar velocity of dark matter particles. Constraints on the initial conditions of the primordial black holes are derived from profiles of the black-hole accretion mechanism and cosmological environment. A large range of masses is compatible with our approach. In particular, masses of the order of $10^{10}M_{\odot}$ today may also be generated from small seeds. An incubation time for the emerging horizons is observed when the initial masses of the seeds are close to the particle-horizon mass. It is also argued that the McVittie-type description is consistent with the Schwarzschild solution as long as other astrophysical processes near the central object are neglected.
