395 citations · 2.4k across the 119 of their papers we have counts for
8 papers · 2 filters
Unveiling the weak radio quasar population at z 4
Krisztina Perger, Sándor Frey, Krisztina É. Gabányi +1
We applied image stacking on empty-field Faint Images of the Radio Sky at Twenty-Centimeters (FIRST) survey maps centred on optically identified high-redshift quasars at t…
Very long baseline interferometry observation of the triple AGN candidate J0849+1114
Krisztina Éva Gabányi, Sándor Frey, Shobita Satyapal +2
In the hierarchical structure formation model, galaxies grow through various merging events. Numerical simulations indicate that the mergers can enhance the activity of the central…
Detection statistics of the RadioAstron AGN survey
Y. Y. Kovalev, N. S. Kardashev, K. V. Sokolovsky +57
The largest Key Science Program of the RadioAstron space VLBI mission is a survey of active galactic nuclei (AGN). The main goal of the survey is to measure and study the brightnes…
The rare extended radio-loud narrow-line Seyfert 1 galaxy SDSS J1030+5516 at high resolution
Krisztina Éva Gabányi, Sándor Frey, Péter Veres +1
Recently, Rakshit et al. (2018) reported the discovery of SDSS J103024.95551622.7, a radio-loud narrow-line Seyfert 1 galaxy having a kpc scale double-lobed radio str…
High-resolution radio imaging of the gamma-ray blazar candidate J1331+2932
A. Gemes, K. É. Gabányi, S. Frey +3
Active galactic nuclei are the most luminous persistent (non-transient, even if often variable) objects in the Universe. They are bright in the entire electromagnetic spectrum. Bla…
The rise and fall of a binary AGN candidate: the story of PSO J334.2028+1.4075
P. Benke, S. Frey, K. É. Gabányi +7
Apparently periodic optical variations of the luminous high-redshift (z=2.06) quasar PSO J334.2028+1.4075 led Liu et al. (2015) to interpret the variability as the orbital period o…
Is there a Blazar Nested in the Core of the Radio Galaxy 3C 411?
Krisztina Perger, Sándor Frey, Krisztina Éva Gabányi
Previous spectral energy distribution modeling based on XMM-Newton X-ray observation of the classical double-lobed radio galaxy 3C 411 left the possibility open for the presence of…
Jet-powered Outflows in Supermassive Black Hole Binary Candidate SDSS J1048+0055
Sumit Jaiswal, Prashanth Mohan, Tao An +1
The search and study of close pairs of supermassive black holes (SMBHs) is important in the study of galaxy mergers which can possibly trigger active galactic nucleus (AGN) activit…