论文标题
从银河电子加速器发射的超高能量倒数康普顿发射
Ultra-high energy Inverse Compton emission from Galactic electron accelerators
论文作者
论文摘要
通常认为，由于不可避免的klein-nishina抑制了电子的逆康普顿发射。然而，在抗康普顿逆向的情况下，硬度高能电子光谱是可能的。我们表明，这种光谱的环境需求自然可以在螺旋臂中，尤其是在增强的恒星形成活动的区域，这是最有前途的电子加速器的自然位置：强大的年轻脉冲星。我们的方案表明，未来的搜索可能会揭示大量的超高能源人群，并且还可以为HAWC最近报道的100个TEV来源提供自然的解释。
It is generally held that >100 TeV emission from astrophysical objects unambiguously demonstrates the presence of PeV protons or nuclei, due to the unavoidable Klein-Nishina suppression of inverse Compton emission from electrons. However, in the presence of inverse Compton dominated cooling, hard high-energy electron spectra are possible. We show that the environmental requirements for such spectra can naturally be met in spiral arms, and in particular in regions of enhanced star formation activity, the natural locations for the most promising electron accelerators: powerful young pulsars. Our scenario suggests a population of hard ultra-high energy sources is likely to be revealed in future searches, and may also provide a natural explanation for the 100 TeV sources recently reported by HAWC.
