论文标题
在射电星系中，磁磁盘上的磁性高能发射
Hadronic High-energy Emission from Magnetically Arrested Disks in Radio Galaxies
论文作者
论文摘要
我们提出了一种新颖的解释，即附近的射线星系是来自中央黑洞（BHS）周围的磁性固定磁盘（MAD）的辐射。 MAD中的磁能高于积聚血浆的热能，在该血浆中，磁重新连接或湍流可能有效地加速了非热质子。它们通过辐射过程发射伽马射线，这可以解释M87和NGC 315的观察到的伽马射线。非热电子也用质子加速并产生MEV伽马射线，这对于通过建议的MEV卫星来测试我们的模型很有用。来自MAD的耐药发射可能会显着有助于GEV伽马射线背景，并产生由IceCube-gen2检测到的多PEV中微子背景。此外，来自MAD的伽马射线通过BH磁层的两光对生产提供了电子 - 符号对。这些对可以筛选真空间隙，这会影响射电星系中的高能发射和喷射机制。
We propose a novel interpretation that gamma-rays from nearby radio galaxies are hadronic emission from magnetically arrested disks (MADs) around central black holes (BHs). The magnetic energy in MADs is higher than the thermal energy of the accreting plasma, where the magnetic reconnection or turbulence may efficiently accelerate non-thermal protons. They emit gamma-rays via hadronic processes, which can account for the observed gamma-rays for M87 and NGC 315. Non-thermal electrons are also accelerated with protons and produce MeV gamma-rays, which is useful to test our model by proposed MeV satellites. The hadronic emission from the MADs may significantly contribute to the GeV gamma-ray background and produce the multi-PeV neutrino background detectable by IceCube-Gen2. In addition, gamma-rays from MADs provide electron-positron pairs through two-photon pair production at the BH magnetosphere. These pairs can screen the vacuum gap, which affects high-energy emission and jet-launching mechanisms in radio galaxies.
