14 citations · 40 across the 19 of their papers we have counts for
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What Do Radio Emission Constraints Tell Us About Little Red Dots as Tidal Disruption Events?
Krisztina Perger, Judit Fogasy, Sándor Frey
The real nature of little red dots (LRDs), a class of very compact galaxies in the early Universe recently discovered by the James Webb Space Telescope, is still poorly understood.…
An Ejection Event Captured by VLBI During the Outburst of Swift J1727.81613
Hongmin Cao, Jun Yang, Sándor Frey +9
We observed a newly-discovered Galactic black hole X-ray binary Swift J1727.81613 with the European Very Long Baseline Interferometry Network (EVN) at 5 GHz. The observation was…
Sub-Parsec Acceleration and Collimation of NGC 4261's Twin Jets
Xi Yan, Lang Cui, Kazuhiro Hada +6
We report the first robust evidence for a co-spatial sub-parsec acceleration and collimation zone (ACZ) in the twin jets of the nearby low-luminosity active galactic nucleus (LLAGN…
Superluminal Motion and Jet Parameters in the High-Redshift Blazar J1429+5406
Dávid Koller, Sándor Frey
We investigate the relativistic jet of the powerful radio-emitting blazar J1429+5406 at redshift z=3.015. Our understanding of jet kinematics in z>3 quasars is still rather limited…
Proper Motion and Natal Kick in the Galactic Black Hole X-ray Binary AT2019wey
Lang Cui, Pengfei Jiang, Tao An +9
Understanding the formation mechanisms of stellar-mass black holes in X-ray binaries (BHXBs) remains a fundamental challenge in astrophysics. The natal kick velocities imparted dur…
Solid Identification of Extragalactic Gamma-Ray Source Using High-Resolution Radio Interferometric Observation
K. É. Gabányi, S. Frey, K. Perger +1
The dominant fraction of the extragalactic -ray sources are blazars, active galactic nuclei with jets inclined at a small angle to the line of sight. Apart from blazars, a few d…
What is Inside the Double-Double Structure of the Radio Galaxy J0028+0035?
S. Frey, A. Marecki, K. É. Gabányi +1
The radio source J0028+0035 is a recently discovered double--double radio galaxy at redshift z=0.398. Its relic outer lobes are separated by about 3' in the sky, corresponding to ~…