标题： 探测银河系中心区域的密度：风成气泡和高能质子约束 显示英文标题

标题： Probing the Density in the Galactic Center Region: Wind-Blown Bubbles and High-Energy Proton Constraints

摘要： 最近对银河系中心在高能伽马射线（高于0.1 TeV）的观测为研究这一区域开辟了新途径，从理解这些高能光子的发射源到限制它们形成的环境。 我们基于这一事实提出了围绕Sgr A*内部5pc的修订理论密度模型，即该区域的底层结构由围绕Sgr A*运行的沃尔夫-拉叶星风主导。 这种密度结构的理想探测和应用是这种高能伽马射线辐射。 我们假设质子散射模型用于这些伽马射线的产生，然后首先确定这种模型是否与观测结果一致，其次确定我们是否可以利用这些观测进一步约束银河系中心的密度分布。 显示英文摘要

摘要： Recent observations of the Galactic center in high-energy gamma-rays (above 0.1TeV) have opened up new ways to study this region, from understanding the emission source of these high-energy photons to constraining the environment in which they are formed. We present a revised theoretical density model of the inner 5pc surrounding Sgr A* based on the fact that the underlying structure of this region is dominated by the winds from the Wolf-Rayet stars orbiting Sgr A*. An ideal probe and application of this density structure is this high energy gamma-ray emission. We assume a proton-scattering model for the production of these gamma-rays and then determine first whether such a model is consistent with the observations and second whether we can use these observations to further constrain the density distribution in the Galactic center.