AI 中文总结
本文假设望远镜阵列记录的超高能粒子为铁核或硅核，通过河外传播计算，分析其可能源的距离约束并讨论候选源。
AI 中文摘要
本文讨论了望远镜阵列记录到的一颗能量为2.44 x 10^20 eV的超高能宇宙射线粒子的起源，假设该粒子为重核，即铁核或硅核。铁被选为宇宙射线中最重的元素，而硅则被选用来探究理论结果随重核质量变化的情况。假设具有如此能量的粒子起源于河外，利用宇宙射线在河外空间传播的常规计算方法，分析了到可能源的距离约束。文中对这些可能的源进行了讨论。
英文摘要
The origin of a cosmic ray particle with an ultra-high energy of 2.44 x 10^20 eV recorded by the Telescope Array is discussed by assuming that it is a heavy nucleus, namely an iron or silicon nucleus. Iron is chosen as a heaviest element in cosmic rays, while silicon is chosen to find out how much the theoretical results obtained vary with the mass of the heavy nucleus. Assuming extragalactic origin of the particle with such energy, the constraints on the distances to possible sources are analysed using a routine calculation of the cosmic ray propagation in extragalactic space. These possible sources are discussed.
Comments10 pages, 2 figures
Journal refPublished in Astronomy Letters, 2026, vol.52 No.2 pp. 87-92
