109 citations · 519 across the 39 of their papers we have counts for
4 papers · 1 filter
Fast jet proper motion discovered in a blazar at z = 4.72
Yingkang Zhang, Tao An, Sandor Frey
High-resolution observations of high-redshift () radio quasars offer a unique insight into jet kinematics at early cosmological epochs, as well as constraints on cosmological…
East Asia VLBI Network observations of the TeV Gamma-Ray Burst 190114C
Tao An, Om Sharan Salafia, Yingkang Zhang +7
Observations of gamma-ray bursts (GRBs) at Very High Energy (VHE) offer a unique opportunity to investigate particle acceleration processes, magnetic fields and radiation fields in…
Kinematics of the M87 jet in the collimation zone: gradual acceleration and velocity stratification
Jongho Park, Kazuhiro Hada, Motoki Kino +36
We study the kinematics of the M87 jet using the first year data of the KVN and VERA Array (KaVA) large program, which has densely monitored the jet at 22 and 43 GHz since 2016. We…
Source-Frequency Phase-Referencing Observation of AGNs with KaVA Using Simultaneous Dual-Frequency Receiving
Guang-Yao Zhao, Taehyun Jung, Bong Won Sohn +27
The KVN(Korean VLBI Network)-style simultaneous multi-frequency receiving mode is demonstrated to be promising for mm-VLBI observations. Recently, other Very long baseline interfer…