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J0011+3443: a GPS compact symmetric object, gravitational lens, or dual AGN?
Efthalia Traianou, Tingting Liu, Roman Gold +1
We present new multi-frequency VLBA observations of \object{J0011+3443} (TXS\,0008+344, ) at 2.3, 4.9, 8.5, and, for the first time, 23.6\,GHz. The source consists of two c…
The Emerging Population of High-energy Emitting Radio Galaxies
G. Bruni, V. S. Paliya, D. J. Saikia +22
High-energy emission from radio galaxies provides a unique laboratory to study the connection between accretion, jet formation, and particle acceleration in active galactic nuclei…
Broadband multiwavelength properties of the archetypal blazar 3C 279 during the 2017 Event Horizon Telescope campaign
G. Principe, J. C. Algaba, E. Aviano +529
The archetypal blazar 3C 279 hosts a prominent relativistic jet and exhibits strong broadband variability across the electromagnetic spectrum. In April 2017, the Event Horizon Tele…
Unique Science Opportunities for Space VLBI Systems with the SKA Telescopes
Y. Y. Kovalev, G. Bruni, T. An +17
To date, two dedicated Space Very Long Baseline Interferometry (SVLBI) missions, the VLBI Space Observatory Programme (VSOP) and RadioAstron, have provided groundbreaking insights…
A Ring of Fire Orphan γ-Ray Flare in the Neutrino Candidate 3C 120
E. Traianou, G. Bruni, J. Rodi +7
We present 43\,GHz VLBI observations of the radio galaxy 3C~120 during its brightest -ray outburst (March 2018), recently associated with the IceCube neutrino alert IC-180213A.…
Where within the 3C 84 jet are -rays produced?
Georgios F. Paraschos, Ioannis Liodakis, Svetlana Jorstad +49
The location of -ray creation and emission within extra-galactic jets is a matter of active debate. One particularly well-suited source to pinpoint the location is the nearby, b…