标题： 向更现实的超致密暗物质晕质量函数发展 显示英文标题

标题： Toward More Realistic Mass Functions For Ultradense Dark Matter Halos

摘要： 超致密暗物质晕（UDMHs）是暗物质的高浓度区域，假设它们是在辐射主导时代由增强的原初扰动形成的。 在这项工作中，我们通过在分析中包括各种物理和几何修正，详细研究了这些晕的形成过程，从而改进了之前关于UDMH丰度计算的工作。 特别是，我们研究了角动量、动力学摩擦和三轴坍缩对UDMH预测质量函数的影响。 我们对四种具有不同增强特征的原初功率谱进行了计算，这些特征允许在广泛和狭窄的质量范围内形成原初黑洞和UDMH。 我们还将这种分析应用于暗物质的两种可能情景中：单组分和多组分。 我们发现，在这些更现实的质量函数存在的情况下，UDMH的丰度显著增强。 显示英文摘要

摘要： Ultradense dark matter halos (UDMHs) are high concentrations of dark matter, assumed to have formed deep in the radiation-dominated era from amplified primordial perturbations. In this work we improve the previous works for the calculation of UDMH abundance by elaborating on the formation process of these halos by including various physical and geometrical modifications in the analysis. In particular, we investigate the impact of angular momentum, dynamical friction and triaxial collapse on the predicted mass functions for UDMHs. We perform the calculations for four primordial power spectra with different amplified features that allow for primordial black hole and UDHM formation in wide and narrow mass ranges. We also apply this analysis in the context of two possible scenarios for dark matter: the single-component and the multi-component. We find that the abundance of UDMHs is prominently enhanced in the presence of these more realistic mass functions.