395 citations · 2.4k across the 119 of their papers we have counts for
5 papers · 2 filters
The first estimate of radio jet proper motion at z>5
S. Frey, Z. Paragi, J. O. Fogasy +1
The extremely high redshift (z=5.3) radio source SDSS J102623.61+254259.5 (J1026+2542) is among the most distant and most luminous radio-loud active galactic nuclei (AGN) known to…
Jets in AGN at extremely high redshifts
Leonid I. Gurvits, Sandor Frey, Zsolt Paragi
A brief review of VLBI structures in extremely high-redshift AGN (revised/edited).
A close-pair binary in a distant triple supermassive black-hole system
R. P. Deane, Z. Paragi, M. J. Jarvis +8
Galaxies are believed to evolve through merging, which should lead to multiple supermassive black holes in some. There are four known triple black hole systems, with the closest pa…
The most compact bright radio-loud AGN -- I. A new target sample selected for the space VLBI
Tao An, Xiaocong Wu, Sandor Frey
We investigated the archival ground-based VLBI images of the extragalactic radio sources included in both the {\it Wilkinson Microwave Anisotropy Probe (WMAP)} and the {\it Planck}…
VLBI observations of the radio quasar J2228+0110 at z=5.95 and other field sources in multiple-phase-centre mode
H. -M. Cao, S. Frey, L. I. Gurvits +5
A patch of sky in the SDSS Stripe 82 was observed at 1.6 GHz with Very Long Baseline Interferometry (VLBI) using the European VLBI Network (EVN). The data were correlated at the EV…