2 papers
astro-ph.HE2025
Detection and Characterization of Quasi-Periodic Oscillations in Seyfert Galaxy NGC 4151
Yan Yongkang, Zhang Peng, Lu Zhou +6
This study aims to detect and characterize quasi-periodic oscillations (QPOs) signals in X-ray observations of NGC 4151. We employed the Weighted Wavelet Z-transform (WWZ) and Lomb…
astro-ph.HE2024
Investigating the Potential of LS 5039 as a Triple System Using Fermi-LAT Data
Lujun Zeng, Mengqing Zhang, Chongyang Ren +2
LS 5039 is one of a handful of -ray binary systems in the Milky Way, comprising a pulsar and a massive O-type companion star with an orbital period of 3.9 day. Recently, we con…