论文标题
超级互动的黑暗部门：通过缩放星系簇的比例关系改善了自相互作用的暗物质
Super Interacting Dark Sector: An Improvement on Self-Interacting Dark Matter via Scaling Relations of Galaxy Clusters
论文作者
论文摘要
自我互动暗物质被称为暗物质最合适的候选人之一。由于它在消除许多天体物理问题方面取得了出色的成功，尤其是在小规模结构中，研究该模型具有更多的意义。在本文中，我们关注了两个先前对群集大小的光晕进行的模拟的结果，该结果具有自相互作用的暗物质，并为星系簇的密度曲线引入了一个新功能，这些功能可以完美地描述这些模拟的结果。这种密度曲线有助于找到速度分散曲线以及簇质量和浓度参数之间的关系。使用这些关系，我们研究了星系簇的两个比例关系，即质量分散和质量关系。缩放关系表明，在自相互作用的暗物质模型中，光晕比标准非交互模型对任何固定温度预测的内容更大。我们还研究了混合相互作用模型的质量温度关系，该模型是自我相互作用的暗物质思想与另一个暗区模型的组合，其中暗物质粒子质量是根据其与暗能量的相互作用确定的。这个超级相互作用的黑暗扇区（SIDS）模型可以将质量温度的关系更改为具有与非相互作用模型相同结果的修改形式。最后，我们提供定量表达式，可以用每单位粒子的横截面粒子的横截面值来描述这种相互作用的模型的常数。
Self-interacting dark matter is known as one of the most appropriate candidates for dark matter. Due to its excellent success in removing many astrophysical problems, particularly in small scale structure, studying this model has taken on added significance. In this paper, we focus on the results of two previously performed simulations of cluster sized halos with self-interacting dark matter and introduce a new function for the density profile of galaxy clusters, which can perfectly describe the result of these simulations. This density profile helps to find a velocity dispersion profile and also a relation between cluster mass and concentration parameter. Using these relations, we investigate two scaling relations of galaxy clusters, namely mass-velocity dispersion and mass-temperature relations. The scaling relations reveal that in the self-interacting dark matter model, halos are more massive than what the standard non-interacting model predicts for any fixed temperature. We also study the mass-temperature relation for a hybrid interacting model, which is a combination of self-interacting dark matter idea with another model of the dark sector in which dark matter particle mass is determined according to its interaction with dark energy. This super interacting dark sector (SIDS) model can change the mass-temperature relation to a modified form that has the same result as a non-interacting model. Finally, we provide quantitative expressions which can describe the constants of this interacting model with the value of cross-section per unit mass of dark matter particles.
