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15 papers · 1 filter
Jet collimation in NGC 315 and other nearby AGN
B. Boccardi, M. Perucho, C. Casadio +14
Aims. The collimation of relativistic jets in galaxies is a poorly understood process. Detailed radio studies of the jet collimation region have been performed so far in few indivi…
Investigating the mini and giant radio flare episodes of Cygnus X-3
E. Egron, A. Pellizzoni, S. Righini +16
The microquasar Cygnus X-3 underwent a giant radio flare in April 2017, reaching a maximum flux of Jy at 8.5 GHz. We present results from a long monitoring campaign car…
Parsec-scale properties of the radio brightest jetted AGN at z > 6
C. Spingola, D. Dallacasa, S. Belladitta +4
We present Director's Discretionary Time multi-frequency observations obtained with the Jansky Very Large Array (VLA) and the Very Long Baseline Array (VLBA) of the blazar PSO J030…
The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope -- Data Release 2
B. Lott, D. Gasparrini, S. Ciprini
An incremental version (4LAC-DR2) of the fourth catalog of active galactic nuclei (AGNs) detected by the Fermi-LAT is presented. This version is associated with the second release…
VLBI20-30: a scientific roadmap for the next decade -- The future of the European VLBI Network
Tiziana Venturi, Zsolt Paragi, Michael Lindqvist +77
This white paper describes the science case for Very Long Baseline Interferometry (VLBI) and provides suggestions towards upgrade paths for the European VLBI Network (EVN). The EVN…
Linear polarization in the nucleus of M87 at 7 mm and 1.3 cm
E. V. Kravchenko, M. Giroletti, K. Hada +4
We report on high angular resolution polarimetric observations of the nearby radio galaxy M87 using the Very Long Baseline Array at 24 GHz (1.3 cm) and 43 GHz (7 mm) in 201…