@article {10.3844/ajssp.2024.1.6, article_type = {journal}, title = {Extragalactic Diffuse Cascade Emission as a Probe of Processes in Active Galactic Nuclei}, author = {Uryson, Anna Vladimir}, volume = {5}, year = {2024}, month = {Feb}, pages = {1-6}, doi = {10.3844/ajssp.2024.1.6}, url = {https://thescipub.com/abstract/ajssp.2024.1.6}, abstract = {In this study, we discuss possible imprint of source characteristics on extragalactic diffuse cascade emission that is initiated by ultra-high energy cosmic rays propagating through the universe. The common opinion is that cosmic ray sources are active galactic nuclei. Based on cascade emission analyses we demonstrate that possibly a new subclass of cosmic ray sources exists, a particle flux from which on the Earth is small, however producing noticeable gamma-ray and neutrino emissions in the universe. We also estimate a fraction of active galactic nuclei with super-strong magnetic fields in their centers among those with common characteristics.}, journal = {Space Science International}, publisher = {Science Publications} }