44 citations · 92 across the 4 of their papers we have counts for
4 papers
Discovery of two rotational modulation periods from a young hierarchical triple system
Yu-Tao Chen, Hai-Jun Tian, Min Fang +7
GW~Ori is a young hierarchical triple system located in Orionis, consisting of a binary (GW~Ori\,A and B), a tertiary star (GW~Ori\,C) and a rare circumtriple disk. Due to the…
An X-ray periodicity of 1.8 hours in a narrow-line Seyfert 1 galaxy Mrk 766
Peng Zhang, Peng-fei Zhang, Jing-zhi Yan +2
In the narrow-line Seyfert 1 galaxy Mrk 766, a Quasi-Periodic Oscillation (QPO) signal with a period of s is detected in the \emph{XMM-Newton} data collected on 2005 May…
Two transient X-ray Quasi-Periodic Oscillations separated by an intermediate state in 1H 0707-495
Peng-Fei Zhang, Peng Zhang, Neng-Hui Liao +3
In the narrow-line Seyfert 1 galaxy 1H 0707-495, recently a transient quasi-periodic oscillation (QPO) signal with a frequency of Hz has been detected at a…
Long-term Optical Studies of the Be/X-ray Binary RX J0440.9+4431/LS V+44 17
Jingzhi Yan, Peng Zhang, Wei Liu +1
We present the spectroscopic and photometric observations on the Be/X-ray binary RX~J0440.9+4431 from 2001 to 2014. The short-term and long-term variability of the H line profil…