论文标题
根据$ H_0 $张力
Mass assembly history of dark matter halos in the light of $H_0$ tension
论文作者
论文摘要
哈勃张力可能会引入新的行动方案，以修改标准$λ$ CDM模型以揭开暗能量和暗物质物理。哈勃参数可以通过对背景演化模型的延迟观察重建。我们将重建的哈勃参数与这项工作中的结构形成和大规模结构可观察到。我们使用偏移集理论来计算暗物质光环的数量密度和祖细胞的质量功能。我们在球形和椭圆形崩溃的背景下，获得了马尔可夫和非马尔科夫扩展的结果。我们表明，与Planck-2018 $ 2018 $λ$ CDM相比，重建模型中暗物质光晕的数量密度约为$ \sim2σ$差异，质量范围为$ m \ gtrsim10^{12} {12} m _ {\ odot} $。我们还将暗物质光环祖细胞质量函数与成对 - 半元素统计数据及其质量组装历史进行比较，从HST的观察数据，Candel调查。由于并发症以区分质量组装中的积聚和合并之比，我们对成对分数的结果仅用于说明。但是，$ \ sim5 $ $ $倍的准确观察结果将有望区分重建模型和Planck-2018 $λ$ CDM。
The Hubble tension may introduce a new course of action to revise the standard $Λ$CDM model to unravel dark energy and dark matter physics. The Hubble parameter can be reconstructed by late-time observations of the background evolution model independently. We relate the reconstructed Hubble parameter to the structure formation and large scale structure observables in this work. We use the excursion set theory to calculate the number density of dark matter halos and the mass function of progenitors. We obtain the results for both the Markov and non-Markov extension of the excursion set theory in the context of spherical and ellipsoidal collapse. We show that the number density of dark matter halos in the reconstructed model has approximately $\sim2σ$ difference in comparison to the Planck-2018 $Λ$CDM in the mass range of $M\gtrsim10^{12}M_{\odot}$. We also compare the dark matter halo progenitor mass function with the pair-galaxy statistics and their mass assembly history from observational data of the HST, CANDEL survey. Due to complications to distinguish the ratio of accretion and merger in mass assembly, our result on pair fraction is for illustration only. However, a $\sim5$ times more accurate observations will be promising to distinguish the reconstructed model and the Planck-2018 $Λ$CDM.
