Using very-long-baseline-interferometry (VLBI), an international team of astronomers has conducted a kinematic study of a jet of the blazar 4C+21.35. The research, presented in a paper published April 5 on the arXiv pre-print repository, sheds more light on the nature of this quasar and its jet.
Source:
https://phys.org/news/2019-04-astronomers-jet-kinematics-blazar-4c2135.html