Title: Resonantly-Produced 7 keV Sterile Neutrino Dark Matter Models and the Properties of Milky Way Satellites Show Chinese title

Title: 共振产生的7 keV sterile中微子暗物质模型与银河系卫星的性质

Abstract: Sterile neutrinos produced through a resonant Shi-Fuller mechanism are arguably the simplest model for a dark matter interpretation origin of the recent unidentified X-ray line seen toward a number of objects harboring dark matter. Here, I calculate the exact parameters required in this mechanism to produce the signal. The suppression of small scale structure predicted by these models is consistent with Local Group and high-$z$ galaxy count constraints. Very significantly, the parameters necessary in these models to produce the full dark matter density fulfill previously determined requirements to successfully match the Milky Way Galaxy's total satellite abundance, the satellites' radial distribution and their mass density profile, or "too big to fail problem." I also discuss how further precision determinations of the detailed properties of the candidate sterile neutrino dark matter can probe the nature of the quark-hadron transition, which takes place during the dark matter production. Show Chinese abstract

Abstract: 通过共振的Shi-Fuller机制产生的无 flavour中微子可以说是解释最近在一些暗物质宿主天体上观测到的未识别X射线谱线的最简单模型。 在这里，我计算了该机制产生信号所需的精确参数。 这些模型预测的小尺度结构的抑制与星系群和高$z$星系计数限制一致。 非常显著的是，这些模型产生全部暗物质密度所必需的参数满足之前确定的要求，以成功匹配银河系总卫星丰度、卫星的径向分布及其质量密度剖面，即“太亮而无法失败”问题。 我还讨论了如何通过更精确地确定候选无味中微子暗物质的详细性质来探测夸克 - 强子相变，这一相变发生在暗物质产生期间。