310 citations · 1.9k across the 53 of their papers we have counts for
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The Second LBA Calibrator Survey of southern compact extragalactic radio sources - LCS2
Leonid Petrov, Alet de Witt, Elaine M. Sadler +2
We present the second catalogue of accurate positions and correlated flux densities for 1100 compact extragalactic radio sources that were not observed before 2008 at high angular…
Stars of Empty Simplices
Matthias Reitzner, Daniel Temesvari
Let be an -element point set in general position. For a -element subset let the degree ${\rm…
Dissecting the AGN disk-jet system with joint VLBI-Gaia analysis
A. V. Plavin, Y. Y. Kovalev, L. Petrov
We analyze differences in positions of active galactic nuclei between Gaia data release 2 and VLBI and compare the significant VLBI-to-Gaia offsets in more than 1000 objects with t…
A quantitative analysis of systematic differences in positions and proper motions of Gaia DR2 with respect to VLBI
L. Petrov, Y. Y. Kovalev, A. V. Plavin
We have analyzed the differences in positions of 9081 matched sources between the Gaia DR2 and VLBI catalogues. The median position uncertainty of matched sources in the VLBI catal…
A wide and collimated radio jet in 3C 84 on the scale of a few hundred gravitational radii
G. Giovannini, T. Savolainen, M. Orienti +22
Understanding the launching, acceleration, and collimation of jets powered by active galactic nuclei remains an outstanding problem in relativistic astrophysics. This is partly bec…
Radio interferometric observation of an asteroid occultation
Jorma Harju, Kimmo Lehtinen, Jonathan Romney +5
The occultation of the radio galaxy 0141+268 by the asteroid (372) Palma on 2017 May 15 was observed using six antennas of the Very Long Baseline Array (VLBA). The shadow of Palma…