Opacity in parsec-scale jets of active galactic nuclei: VLBA study from 1.4 to 15 GHz

Y. Y. Kovalev, A. B. Pushkarev, A. P. Lobanov +1

In extragalactic jets, the apparent position of the bright/narrow end (the core) depends on the observing frequency, owing to synchrotron self-absorption and external absorption. T…