42 citations · 140 across the 9 of their papers we have counts for
9 papers
A Mass-Independent Damping Timescale in Black Hole Accretion Systems
Haoyang Zhang, Shenbang Yang, Li Zhang +1
The scaling laws reveal the underlying structural similarities shared by astrophysical systems across vastly different scales. In black hole accretion systems, the scaling relation…
A characteristic optical variability time scale in jetted active galactic nuclei: a large gamma-ray emission sample
Dingrong Xiong, Mouyuan Sun, Jun-Xian Wang +14
The variability mechanisms from jetted AGNs are still under debate. Here the damped random walk (DRW) model, implemented through Gaussian Processe (GPs), is used to fit the l…
Discovering the Mass-Scaled Damping Timescale from Microquasars to Blazars
Haoyang Zhang, Shenbang Yang, Benzhong Dai
Studying the variability of the accretion disks of black holes and jets is important to identify their internal physical processes. In this letter, we obtain the characteristic dam…
Optimization of performance of the KM2A full array using the Crab Nebula
LHAASO collaboration
The full array of the Large High Altitude Air Shower Observatory (LHAASO) has been in operation since July 2021. For its kilometer-square array (KM2A), we have optimized the select…
Search for X-ray Quasi-periodicity of six AGNs using Gaussian Process method
Haoyang Zhang, Shenbang Yang, Benzhong Dai
The quasi-periodic oscillations (QPOs) found in active galactic nuclei (AGNs) are a very interesting observational phenomenon implying an unknown physical mechanism around supermas…
A Quasi-periodic Oscillation in the gamma-ray Emission from the Non-blazar Active Galactic Nucleus PKS 0521-36
Haiyun Zhang, Dahai Yan, Pengfei Zhang +2
Long-term gamma-ray variability of a non-blazar Active Galactic Nucleus (AGN) PKS 0521-36 is investigated by using Fermi-LAT pass 8 data covering from 2008 August to 2021 March. Th…
Gaussian Process Modeling -LAT -ray Blazar Variability: A Sample of Blazars with -ray Quasi-periodicities
Shenbang Yang, Dahai Yan, Pengfei Zhang +2
Blazar variability may be driven by stochastic processes. On the other hand, quasi-periodic oscillation (QPO) behaviors are recently reported to be detected in -LAT dat…
Statistical analysis on X-ray flares from the nucleus and HST-1 knot in the M87 jet
Shenbang Yang, Dahai Yan, Benzhong Dai +4
The statistical properties of X-ray flares from two separate locations (nucleus and HST-1) in the M87 jet are investigated to reveal the physical origin of the flares. We analyse t…
Statistical analysis on XMM-Newton X-ray flares of Mrk 421: distributions of peak flux and flaring time duration
Dahai Yan, Shenbang Yang, Pengfei Zhang +3
The energy dissipation mechanism in blazar jet is unknown. Blazar's flares could provide insights on this problem. Here we report statistical results of XMM-Newton X-ray flares of…