20 citations · 48 across the 7 of their papers we have counts for
5 papers · 1 filter
Observational evidence of black hole event horizon from ultra-compact X-ray binaries
Qian-Qi Ma, Wei-Min Gu, Shan-Shan Weng +1
The event horizon is the most crucial feature that distinguishes black hole (BH) from all other objects in the universe. However, since no radiation can escape from the event horiz…
X-ray Quasi-Periodic Oscillations in Active Galactic Nuclei and Their Implications for the Changing Look Phenomenon
Mouyuan Sun, Shuying Zhou, Jihong Liu +12
X-ray timing of active galactic nuclei (AGN) provides a unique probe of gas accretion onto supermassive black holes (SMBHs). Quasi-periodic oscillations (QPOs), which trace gas dyn…
A reverberation mapping study of a highly variable AGN 6dFGS gJ022550.0-060145
Danyang Li, Mouyuan Sun, Junfeng Wang +2
We use LCOGT observations (MJD ) with a total exposure time of hours and a median cadence of days to measure the inter-band time delays (with respect…
The Nearest Neutron Star Candidate in a Binary Revealed by Optical Time-domain Surveys
Ling-Lin Zheng, Mouyuan Sun, Wei-Min Gu +19
The near-Earth (within pc) supernova explosions in the past several million years can cause the global deposition of radioactive elements (e.g., Fe) on Earth. The…
X-ray emission of contact binary variables within 1 kpc
Junhui Liu, Jianfeng Wu, Ali Esamdin +3
By assembling the largest sample to date of X-ray emitting EW-type binaries (EWXs), we carried out correlation analyses for the X-ray luminosity log, and X-ray acti…