activity
20142026
most citedVLBI-Gaia offsets favor parsec-scale jet direction in Active Galactic Nuclei

102 citations · 150 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.HE2026

Multiwavelength variability of the high-energy neutrino candidate PKS 0735+178 over three decades

T. Mufakharov, Yu. Sotnikova, V. Vlasyuk +12

We present the multiwavelength variability of the BL Lac object PKS 0735+178, associated with the high-energy neutrino event IC211208A. The light curves cover the radio (1-230 GHz)…

astro-ph.HE2025★ 3 cited

Dim cores of radio-bright AGN jets: VLBI and Gaia astrometry pinpoint different parsec-scale features

A. V. Popkov, Y. Y. Kovalev, A. V. Plavin +2

Astrometry with the very long baseline radio interferometry (VLBI) allows to determine the position of a point close to the source's brightest compact detail at milliarcsecond scal…

astro-ph.HE2024★ 10 cited

Multiwavelength variability of the blazar AO 0235+164

V. V. Vlasyuk, Yu. V. Sotnikova, A. E. Volvach +28

We present a study of the multiwavelength (MW) variability of the blazar AO 0235+164 based on the radio-to--ray data covering a long time period from 1997 to 2023. The radio dat…

astro-ph.GA2024★ 2 cited

Magnetically Driven Relativistic Jet in the High-Redshift Blazar OH~471

S. Guo, T. An, Y. Liu +15

Context : Understanding the mechanisms that launch and shape powerful relativistic jets from supermassive black holes (SMBHs) in high-redshift active galactic nuclei (AGN) is cruci…

astro-ph.GA2020★ 14 cited

A bias in VLBI measurements of the core shift effect in AGN jets

I. N. Pashchenko, A. V. Plavin, A. M. Kutkin +1

The Blandford and Königl model of AGN jets predicts that the position of the apparent opaque jet base - the core - changes with frequency. This effect is observed with radio interf…

astro-ph.GA2018★ 14 cited

Frequency-Dependent Core Shifts in Ultracompact Quasars

P. A. Voitsik, A. B. Pushkarev, Y. Y. Kovalev +3

Results of a pilot project with the participation of the "Kvazar-KVO" radio interferometry array in observations carried out with the European VLBI Network are presented. The aim o…

astro-ph.GA2017★ 102 cited

VLBI-Gaia offsets favor parsec-scale jet direction in Active Galactic Nuclei

Y. Y. Kovalev, L. Petrov, A. V. Plavin

The data release 1 (DR1) of milliarcsecond-scale accurate optical positions of stars and galaxies was recently published by the space mission Gaia. We study the offsets of highly a…

astro-ph.HE2014★ 5 cited

Two active states of the narrow-line gamma-ray-loud AGN GB 1310+487

K. V. Sokolovsky, F. K. Schinzel, Y. T. Tanaka +49

Previously unremarkable, the extragalactic radio source GB 1310+487 showed a gamma-ray flare on 2009 November 18, reaching a daily flux of ~10^-6 photons/cm^2/s at energies E>100 M…