论文标题
寻找原始的螺旋磁场
Searching for primordial helical magnetic fields
论文作者
论文摘要
已经提出，在白术磁场（IGMF）中存在非零的螺旋性作为其原始起源的明确签名。我们将弥漫性费米 - 拉特伽马射线数据的先前分析从2.5扩展到11年以上，并表明在2。5年数据中的螺旋磁场提示是统计波动。然后，我们使用单个来源AS，例如TEV Gamma-ray Blazars检查了螺旋磁场的检测前景。我们发现检测在我们的模拟中采用逼真的模型，IGMF和检测器的分辨率来挑战。
The presence of non-zero helicity in intergalactic magnetic fields (IGMF) has been suggested as a clear signature for their primordial origin. We extend a previous analysis of diffuse Fermi-LAT gamma-ray data from 2.5 to more than 11 years and show that a hint for helical magnetic fields in the 2.5 year data was a statistical fluctuation. Then we examine the detection prospects of helical magnetic fields using individual sources as, e.g., TeV gamma-ray blazars. We find that a detection is challenging employing realistic models for the cascade evolution, the IGMF and the detector resolution in our simulations.
