2 papers
astro-ph.HE2025
Pattern and Origin for the Extreme -ray Flares of 3C 454.3 and 3C 279: An Astrophysical Critical Damper?
Haiyun Zhang, Dahai Yan, Jianeng Zhou +2
We apply a Gaussian process method to the extreme -ray flares of 3C 454.3 and 3C 279 to discover the variable patterns and then to investigate the physical origins of the giant…
astro-ph.HE2025
Evidence for Magneto-gravitational Processes in Supermassive Black Hole Binary PG 1553+113
Haiyun Zhang, Dahai Yan, Li Zhang +1
PG1553+113 has drawn significant attention for its quasi-periodic oscillation (QPO) in gamma-ray variability, though the origin of its variability remains uncertain. In this study,…