论文标题
原始黑洞和流动作对结构形成的影响
The effect of Primordial Black Holes and streaming motions on structure formation
论文作者
论文摘要
原始黑洞可能是宇宙中暗物质的重要组成部分。如果它们存在，他们会在功率谱系中添加泊松组件。额外的力量会加快播种第一恒星和星系形成的暗物质光环的出现。卡什林斯基（Kashlinsky，2021）提出，额外的速度波动将加速到深色物质潜在井中。我们分析了原始黑洞对从重组到电源的巴里昂进口的影响，并发现校正是Tseliakhovich \＆Hirata（2010）首先鉴定出的功率抑制的百分之几。 However, the dynamical effect of this correction in addition to the extra power speeds up the formation of halos in the mass range of $10^4-10^{5-6}$M$_\odot$, while slightly decreasing the formation of those in the range $10^6-10^8$M$_\odot$ confirming earlier analytic estimates and recent results of numerical simulations.
Primordial Black Holes could be an important component of the dark matter in the Universe. If they exist, they would add a Poisson component to the matter power spectrum. The extra power would speed up the emergence of dark matter halos that seed the formation of first stars and galaxies. Kashlinsky (2021) suggested that the additional velocity fluctuations would accelerate the infall of baryons onto the dark matter potential wells. We analyze the effect of Primordial Black Holes on the baryon infall from recombination to reionization and find the correction to be a few percent of the power suppression first identified by Tseliakhovich \& Hirata (2010). However, the dynamical effect of this correction in addition to the extra power speeds up the formation of halos in the mass range of $10^4-10^{5-6}$M$_\odot$, while slightly decreasing the formation of those in the range $10^6-10^8$M$_\odot$ confirming earlier analytic estimates and recent results of numerical simulations.
