395 citations · 2.4k across the 119 of their papers we have counts for
4 papers · 2 filters
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…
Searching for the Origin of Double-peaked Broad Emission Lines in a Merging Galaxy with EVN
Krisztina É. Gabányi, Sándor Frey, Emma Kun +2
The current cosmological structure formation models predict that galaxies evolve through frequent mergers. During these events, the supermassive black holes (SMBHs) residing in the…
Unprecedented change in the position of four radio sources
Oleg Titov, Sándor Frey, Sébastien Lambert +7
Astrometric positions of radio-emitting active galactic nuclei (AGNs) can be determined with sub-milliarcsec accuracy using very long baseline interferometry (VLBI). The usually sm…
Three in One: The VLBI Radio View of the X-ray Quasar RX J1456.0+5048
Sándor Frey, Ingrid Tar, Krisztina Perger
RX J1456.0+5048 is a prominent X-ray source detected by ROSAT. There is ~100-mJy level radio emission associated with the X-ray source. However, interferometric observations with i…