25 citations · 41 across the 7 of their papers we have counts for
7 papers
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…
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 cond…
An X-ray high-frequency quasi-periodic oscillation in NGC 1365
Yongkang Yan, Peng Zhang, Qingzhong Liu +4
This study presents the detection of a high-frequency quasi-periodic oscillation (QPO) in the Seyfert galaxy NGC 1365 based on observational data obtained by \emph{XMM-Newton} in J…
A spectral data release for 104 Type II Supernovae from the Tsinghua Supernova Group
Han Lin, Xiaofeng Wang, Jujia Zhang +33
We present 206 unpublished optical spectra of 104 type II supernovae obtained by the Xinglong 2.16m telescope and Lijiang 2.4m telescope during the period from 2011 to 2018, spanni…
Multiwavelength observations of KS 1947+300
Wei Liu, Pablo Reig, Jingzhi Yan +5
KS 1947+300 is a Be/X-ray binary. Despite its nearly circular orbit, it displays both giant and regular less intense X-ray outbursts. According to the viscous decretion disk model,…
Multiwavelength observation of 1A 0535+262=HD 245770 from 2010 to 2021
Wei Liu, Jingzhi Yan, Guangcheng Xiao +3
Context. 1A 0535+262 is a high-mass X-ray binary that went into a giant X-ray outburst in 2020. During this event, the X-ray luminosity reached the highest value measured over the…
Detection of gamma-ray emission from globular clusters M 15, NGC 6397, NGC 5904, NGC 6218 and NGC 6139 with Fermi-LAT
P. F. Zhang, Y. L. Xin, L. Fu +4
In the third Fermi catalogue (3FGL) there are sixteen gamma-ray globular clusters. After analyzing the recent released Pass 8 data of Fermi Large Area Telescope (LAT), we report th…