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Subarcsecond view on the high-redshift blazar GB 1508+5714 by the International LOFAR Telescope
A. Kappes, P. R. Burd, M. Kadler +14
Studies of the most distant AGNs allow us to test our current understanding of the physics present in radio-jetted AGNs across a range of environments. The decrease in apparent lum…
Radio-loud Quasars above Redshift 4: VLBI Imaging of an Extended Sample
M. Krezinger, K. Perger, K. É. Gabányi +7
High-redshift radio sources provide plentiful opportunities for studying the formation and evolution of early galaxies and supermassive black holes. However, the number of known ra…
Blazar nature of high-z radio-loud quasars
Tullia Sbarrato, Gabriele Ghisellini, Gianpiero Tagliaferri +3
We report on the Swift/XRT observation and classification of eleven blazar candidates at . These sources were selected as part of a sample of extremely radio-loud quasars, in…