论文标题
软伽玛射线从低积压的超级黑洞并连接到充满活力的中微子
Soft gamma rays from low accreting supermassive black holes and connection to energetic neutrinos
论文作者
论文摘要
宇宙充满了Mev Gamma射线和PEV中微子的弥漫背景，其起源是未知的。在这里，我们提出了一个可以同时考虑这两个背景的方案。低亮度活性银河核具有热吸积流，其中热电子通过其同步子光子的构成自然发出软伽马射线。那里的质子可以通过湍流或重新连接加速，从而通过HADRONIC相互作用产生高能中微子。我们证明我们的模型可以重现伽马射线和中微子数据。结合热冠在发光的活性银河核中的贡献，这些吸积流可以解释keV -mev光子和TEV -PEV中微子背景。这种情况可以在没有非热电子的情况下解释MEV背景，这表明从热量到非热宇宙的过渡能量更高。我们的模型与附近对象的X射线数据一致，并且可以通过未来的MEV伽马射线和高能中微子探测器进行测试。
The Universe is filled with a diffuse background of MeV gamma-rays and PeV neutrinos, whose origins are unknown. Here, we propose a scenario that can account for both backgrounds simultaneously. Low-luminosity active galactic nuclei have hot accretion flows where thermal electrons naturally emit soft gamma rays via Comptonization of their synchrotron photons. Protons there can be accelerated via turbulence or reconnection, producing high-energy neutrinos via hadronic interactions. We demonstrate that our model can reproduce the gamma-ray and neutrino data. Combined with a contribution by hot coronae in luminous active galactic nuclei, these accretion flows can explain the keV -- MeV photon and TeV -- PeV neutrino backgrounds. This scenario can account for the MeV background without non-thermal electrons, suggesting a higher transition energy from the thermal to non-thermal Universe than expected. Our model is consistent with X-ray data of nearby objects, and testable by future MeV gamma-ray and high-energy neutrino detectors.
