Evaporation of primordial black holes in the early Universe: Mass and spin distributions
Evaporation of primordial black holes in the early Universe: Mass and spin distributions
复制标题
早期宇宙中原初黑洞的蒸发：质量和自旋分布
作者：
A. Cheek;L. Heurtier;Y. Perez;J. Turner
许多宇宙现象导致了早期宇宙中原始黑洞的产生。这些现象通常会产生大量质量和自旋分布扩展的黑洞。当这些黑洞通过霍金辐射蒸发时，它们可以改变各种宇宙学观测值，导致暗物质的产生，改变有效相对论自由度的数量，$N_{
m eff}$，来源随机引力波背景并改变重子发生的动力学。我们考虑了早期宇宙中具有非平凡质量和自旋分布的原始黑洞的霍金蒸发。我们证明，这种分布的形状可以强烈地影响上述大多数宇宙学观测。我们概述了我们用来完成这项任务的数字机器。我们还发布了一个新版本的FRISBHEE，它处理了宇宙历史上任意质量和自旋分布的原始黑洞的蒸发。
Many cosmological phenomena lead to the production of primordial black holes in the early Universe. These phenomena often create a population of black holes with extended mass and spin distributions. As these black holes evaporate via Hawking radiation, they can modify various cosmological observables, lead to the production of dark matter, modify the number of effective relativistic degrees of freedom, $N_{
m eff}$, source a stochastic gravitational wave background and alter the dynamics of baryogenesis. We consider the Hawking evaporation of primordial black holes that feature non-trivial mass and spin distributions in the early Universe. We demonstrate that the shape of such a distribution can strongly affect most of the aforementioned cosmological observables. We outline the numerical machinery we use to undertake this task. We also release a new version of FRISBHEE that handles the evaporation of primordial black holes with an arbitrary mass and spin distribution throughout cosmic history.
黑洞剩余物：二元黑洞合并产生的剩余种群
DOI：
10.3847/2041-8213/ac0334
发表时间：
2021
期刊：
The Astrophysical Journal Letters
影响因子：
--
作者：
Doctor, Zoheyr;Farr, Ben;Holz, Daniel E.
通讯作者：
Holz, Daniel E.