论文标题
带有暗物质背景的引力不稳定：探索不同的情况
Gravitational instability with a dark matter background: Exploring the different scenarios
论文作者
论文摘要
我们使用杂交量子经典的液体方法研究了由两种物种（明亮）和暗物质颗粒组成的自我磨损培养基的牛仔型重力不稳定性。重型物质是经典处理的，这适用于大多数天体物理环境，例如Bok球，而暗物质是通过量子流体动力学方法来处理的，允许可能的非线性。这些非线性可能是由于吸引人或令人反感的短距离自我相互作用（有吸引力的相互作用与斧头更相关）或从费米子暗物质的Pauli排除原则（例如大型中微子）中引起的。这使我们能够在非常广泛的背景下探索暗物质背景对牛仔裤过程的影响，用于文献中讨论的不同情况。在最简单的情况下，表明暗物质背景对牛仔裤的质量的影响仅取决于巴属和暗物质颗粒的密度和速度分散的比率。利用这一点，我们将与BOK Blobule稳定性观测值面对已建立的稳定性标准，并表明该模型可以充分说明数据，这些数据与暗物质参数接近与数值模拟独立于预测的数据相关。
We study the Jeans-type gravitational instability for a self-gravitating medium composed of two species, baryonic (bright) and dark matter particles, using a hybrid quantum-classical fluid approach. Baryonic matter is treated classically, which is appropriate for most astrophysical environments, e.g., Bok globules, while dark matter is treated through a quantum hydrodynamic approach allowing for possible nonlinearities. These nonlinearities may arise in bosonic dark matter due to attractive or repulsive short-range self-interaction (attractive interaction being more relevant for axions) or from the Pauli exclusion principle for fermionic dark matter, e.g., massive neutrinos. This allows us to explore, in a very broad context, the impact of a dark matter background on the Jeans process for different scenarios discussed in the literature. In the simplest case, it is shown that the effect of a dark matter background on the Jeans mass depends only on the ratio of densities and velocity dispersions of baryonic and dark matter particles. Taking advantage of that, we confront the established stability criterion with Bok globule stability observations and show that the model adequately accounts for the data with dark matter parameters close to those predicted independently from numerical simulations.
