21 citations · 33 across the 9 of their papers we have counts for
9 papers
Jet reorientation revealed by intermittent jet activity in radio galaxy 0954+556
Ai-Ling Zeng, Wei Zhao, Jun Yang +9
Intermittent jet activity of AGNs is a common phenomenon, whereas significant jet reorientation during episodic jet activity in relatively young radio galaxies are rarely reported.…
Analysis of Jet Dynamics and Collimation Characteristics of 0241+622 on Parsec Scales
Haitian Shang, Wei Zhao, Xiaoyu Hong +1
We conducted a detailed analysis of the jet structure and dynamics of the source 0241+622 on milliarcsecond (mas) scales. We stacked images from multiple epochs to better recover t…
Unveiling the Complex Jet Dynamics in the Blazar 2021+317 through Multi-Epoch VLBI Observations
Haitian Shang, Wei Zhao, Xiaoyu Hong +4
We present an investigation of the compact structure of the AGN 2021+317 based on multi-epoch Very Long Baseline Interferometry (VLBI) observations at 15, 22, and 43 GHz in the per…
Evolution of magnetic field of the Quasar 1604+159 at pc scale
Xu-Zhi Hu, Xiaoyu Hong, Wei Zhao +3
We have analyzed the total intensity, spectral index, linear polarization, and RM distributions at pc scale for the quasar 1604+159. The source was observed in 2002 and 2020 with t…
Multi-band Cross-correlated Radio Variability of the Blazar 3C 279
Krishna Mohana A, Alok C. Gupta, Alan P. Marscher +18
We present the results of our study of cross-correlations between long-term multi-band observations of the radio variability of the blazar 3C 279. More than a decade (2008-2022) of…
Unveiling the small-scale jets in the rapidly growing supermassive black hole IZw1
Xiaolong Yang, Su Yao, Luigi C. Gallo +10
Accretion of black holes at near-Eddington or super-Eddington rates is the most powerful episode that drives black hole growth, and it may work in several types of objects. However…
Features of Structure and Absorption in the Jet-Launching Region of M87
Wei Zhao, Xiaoyu Hong, Tao An +3
M87 is one of the best available source for studying the AGN jet-launching region. To enrich our knowledge of this region, with quasi-simultaneous observations using VLBA at 22, 43…
The Jet of FSRQ PKS~122902 and its Misidentification as a -ray AGN
W. Zhao, X. -Y. Hong, T. AN +1
Flat-spectrum radio quasar PKS~122902 with a knotty and asymmetric radio morphology was identified as the optical and radio counterpart of a -ray source. In this paper, we st…
Imaging and variability studies of CTA~102 during the 2016 January -ray flare
Xiaofeng Li, P. Mohan, T. An +6
The -ray bright blazar CTA 102 is studied using imaging (new 15 GHz and archival 43 GHz Very Long Baseline Array, VLBA data) and time variable optical flux density, polarization…