论文标题
超高能宇宙射线的磁偏转多重磁性多重结构的证据
Evidence for a Supergalactic Structure of Magnetic Deflection Multiplets of Ultra-High Energy Cosmic Rays
论文作者
论文摘要
据报道，使用来自望远镜阵列（TA）表面检测器的7年数据和更新至10年的数据，据报道，大规模的超级宇宙射线多重射线多重集（到达与能量相关）结构的结构据报道了10 $^{19} $ eV以上的超高能量宇宙射线（UHECR）能量的证据。先前的能量位置相关研究已经对磁场形状和强度以及UHECR组成做出了假设。在这里，测试的假设是，由于超级半分离平面适合局部大规模结构（LSS）的平均物质密度，因此UHECR源和中间层次磁场与该平面相关。通过中等规模的能量角度相关性强度的整个视野（FOV）行为，测试了这种超级阶层挠度假设。这些多重组在FOV的球形盖部分（楔形）中测量，以解释连贯的和随机的磁场。所发现的结构与超级半阶层的挠度，先前发表的能量谱系的ta（热点和冷点）的能量各向异性结果，以及超级半星磁板的玩具模型模拟。在各向同性天空上，偶然出现的这种超级半公生结构的七年数据后，蒙特卡洛模拟发现为4.2 $σ$。审判后十年的数据意义为4.1 $σ$。此外，Starburst Galaxy M82被证明是TA热点的可能来源，并提出了使用UHECR测量值的超级半星磁场的估计。
Evidence for a large-scale supergalactic cosmic ray multiplet (arrival directions correlated with energy) structure is reported for ultra-high energy cosmic ray (UHECR) energies above 10$^{19}$ eV using seven years of data from the Telescope Array (TA) surface detector and updated to 10 years. Previous energy-position correlation studies have made assumptions regarding magnetic field shapes and strength, and UHECR composition. Here the assumption tested is that, since the supergalactic plane is a fit to the average matter density of the local Large Scale Structure (LSS), UHECR sources and intervening extragalactic magnetic fields are correlated with this plane. This supergalactic deflection hypothesis is tested by the entire field-of-view (FOV) behavior of the strength of intermediate-scale energy-angle correlations. These multiplets are measured in spherical cap section bins (wedges) of the FOV to account for coherent and random magnetic fields. The structure found is consistent with supergalactic deflection, the previously published energy spectrum anisotropy results of TA (the hotspot and coldspot), and toy-model simulations of a supergalactic magnetic sheet. The seven year data post-trial significance of this supergalactic structure of multiplets appearing by chance, on an isotropic sky, is found by Monte Carlo simulation to be 4.2$σ$. The ten years of data post-trial significance is 4.1$σ$. Furthermore, the starburst galaxy M82 is shown to be a possible source of the TA Hotspot, and an estimate of the supergalactic magnetic field using UHECR measurements is presented.
