论文标题
重新访问与最近UHECR来源的距离：半乳酸外磁场的影响
Revisiting the distance to the nearest UHECR source: Effects of extra-galactic magnetic fields
论文作者
论文摘要
我们更新最近UHECR源位置的约束。通过使用最先进的CR繁殖模型分析皮埃尔螺旋钻天文台的最新数据，我们重申需要距离小于25-100 mpc的局部来源，具体取决于质量组成。开发了一种新的快速半分析方法，用于在具有湍流磁场的环境中繁殖UHECR。展示了来自特定距离范围内的宇宙射线的增强和低能磁层的发作。考虑到这些磁场效应，我们研究了与最近源的距离。获得的结果突出了我们约束距离与最近源的鲁棒性。
We update the constraints on the location of the nearest UHECR source. By analyzing recent data from the Pierre Auger Observatory using state-of-the-art CR propagation models, we reaffirm the need of local sources with a distance less than 25-100 Mpc, depending on mass composition. A new fast semi-analytical method for the propagation of UHECR in environments with turbulent magnetic fields is developed. The onset of an enhancement and a low-energy magnetic horizon of cosmic rays from sources located within a particular distance range is demonstrated. We investigate the distance to the nearest source, taking into account these magnetic field effects. The results obtained highlight the robustness of our constrained distances to the nearest source.
