104 citations · 724 across the 32 of their papers we have counts for
6 papers · 1 filter
A compact symmetric radio source born at one-tenth the current age of the Universe
Tao An, Ailing Wang, Yingkang Zhang +3
Studies of high redshift radio galaxies can shed light on the activity of active galactic nuclei (AGN) in massive elliptical galaxies, and on the assembly and evolution of galaxy c…
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…
The loud and the quiet: searching for radio counterparts of two radio-weak BL Lac candidates with VLBI
Hong-Min Cao, Sándor Frey, Krisztina É. Gabányi +4
BL Lac objects are known to have compact jets inclined to our line of sight at a small angle, showing prominent radio emission. Two radio-weak BL Lac candidates with no counterpart…
VLBA 24 and 43 GHz observations of massive binary black hole candidate PKS 1155+251
Xiaolong Yang, Xiang Liu, Jun Yang +5
PKS 1155+251 is a radio-loud quasar source at z=0.203. Observations using very long baseline interferometry (VLBI) at ~2, 5, 8 and 15 GHz show that the structure of the radio sourc…
Four dual AGN candidates observed with the VLBA
K. É. Gabányi, T. An, S. Frey +4
According to hierarchical structure formation models, merging galaxies are expected to be seen in different stages of their coalescence. However, currently there are no straightfor…