42 citations · 126 across the 9 of their papers we have counts for
11 papers · 1 filter
Discovery of Very-high-energy Gamma-ray Emissions from the Low Luminosity AGN NGC 4278 by LHAASO
Zhen Cao, F. Aharonian, Q. An +276
The first source catalog of Large High Altitude Air Shower Observatory reported the detection of a very-high-energy gamma ray source, 1LHAASO J1219+2915. In this paper a further de…
The detection of possible -ray quasi-periodic modulation with 600 days from the blazar S2 0109+22
Haoyang Zhang, Fan Wu, Benzhong Dai
In this work, we analyzed the long term gamma-ray data by a Fermi Large Area Telescope (Fermi-LAT) of blazar S2 0109+22, ranging from 2008 to 2023. The quasi-periodic oscillations…
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…
The optical spectral features of 27 Fermi blazars
Bing-Kai Zhang, Wei-Feng Tang, Chun-Xiao Wang +4
A spectral variation accompanied with flux variability is a commonly-observed phenomenon for blazars. In order to further investigate the optical spectral feature of blazars, we ha…
Kinetic powers of the relativistic jets in Mrk 421 and Mrk 501
Xiao-Chun Deng, Wen Hu, Fang-Wu Lu +1
Using the standard one-zone synchrotron self-Compton (SSC) model and the Markov chain Monte Carlo (MCMC) technique, we systematically analyze the quasi-simultaneous multi-wavelengt…
Long-term multi-wavelength variations of Fermi blazar 3C 279
Bing-Kai Zhang, Min Jin, Xiao-Yun Zhao +2
The long-term optical, X-ray and -ray data of blazar 3C 279 have been compiled from -XRT, PCA, -LAT, SMARTS and literature. The source exhibits strong varia…