3 papers
astro-ph.HE2025
A Giant Peanut-shaped Ultra-High-Energy Gamma-Ray Emitter Off the Galactic Plane
Zhen Cao, Felix Aharonian, Yunxiang Bai +312
Ultra-high-energy (UHE), exceeding 100 TeV (10^12 electronvolts), γ-rays manifests extreme particle acceleration in astrophysical sources. Recent observations by γ-ray telescopes…
astro-ph.HE2025
Discrete treatment of inverse Compton scattering: implications on parameter estimation in gamma-ray astronomy
Junji Xia, Xingjian Lv, Kun Fang +1
In gamma-ray astronomy and cosmic-ray physics, the continuous approximation of inverse Compton scattering (ICS) is widely adopted to model the evolution of electron energy. However…
astro-ph.HE2024
Constraining anisotropic diffusion between Geminga and Earth with the cosmic-ray electron and positron spectrum
Junji Xia, Xiaojun Bi, Kun Fang +1
The gamma-ray halo surrounding Geminga suggests a notable reduction in cosmic-ray diffusion. One potential explanation for this phenomenon is the projection effect of slow diffusio…