论文标题
模糊暗物质光环I：宇宙学环境中的单个系统的扩展关系
Scaling relations of Fuzzy Dark Matter haloes I: individual systems in their cosmological environment
论文作者
论文摘要
涉及非常轻的骨质粒子（通常称为模糊暗物质（FDM））的暗物质模型最近引起了人们对宇宙学群落的极大兴趣，因为它们的波浪样现象学可以同时解释对暗物质粒子的长期错误检测，并有助于缓解与标准冷暗物质（CDM）场景相关的小规模问题。通过目前的工作，我们发起了一系列论文，旨在在宇宙学框架中调查FDM结构的演变，该框架使用我们的N体制代码AX-GADGET进行，这是文献中首次详细介绍单齿核与主机光环之间的实际扩展关系如何受到动态状态，Morphologicy和Merger Merger历史的动态状态，MERPHOLOGICE和MERGER MERGER历史的影响。特别是，在第一篇论文中，我们证实了AX-GADGET正确再现典型的FDM Solitonic Core的能力，并利用它通过放大模拟方法在其宇宙学环境中研究了八个FDM光环的非线性演化。我们发现，在以前的孤立系统中确定的缩放关系通常是在现实的宇宙学环境中进化的光环，并且似乎仅作为最放松和球形对称系统的限制。
Dark matter models involving a very light bosonic particle, generally known as Fuzzy Dark Matter (FDM), have been recently attracting great interest in the cosmology community, as their wave-like phenomenology would simultaneously explain the longstanding mis-detection of a dark matter particle and help easing the small-scale issues related to the standard Cold Dark Matter (CDM) scenario. With the present work, we initiate a series of papers aiming at investigating the evolution of FDM structures in a cosmological framework performed with our N-body code AX-GADGET, detailing for the first time in the literature how the actual scaling relations between solitonic cores and host haloes properties are significantly affected by the dynamical state, morphology and merger history of the individual systems. In particular, in this first paper we confirm the ability of AX-GADGET to correctly reproduce the typical FDM solitonic core and we employ it to study the non-linear evolution of eight FDM haloes in their cosmological context through the zoom-in simulation approach. We find that the scaling relations identified in previous works for isolated systems are generally modified for haloes evolving in a realistic cosmological environment, and appear to be valid only as a limit for the most relaxed and spherically symmetric systems.
