20 citations · 20 across the 6 of their papers we have counts for
6 papers
Search for refractive substructure in active galactic nuclei using ground-based VLBI observations
Tatiana A. Koryukova, Alexander V. Plavin, Alexander B. Pushkarev +1
We present the results of the first systematic search for refractive scattering substructure in active galactic nuclei (AGN) using ground-based very long baseline interferometry (V…
Revisiting the angular size-redshift cosmological test with milliarcsecond radio structures in active galactic nuclei
Mina Ghodsi Yengejeh, Tatiana A. Koryukova, Leonid I. Gurvits +5
VLBI measurements of the sizes of compact extragalactic radio sources, jetted active galactic nuclei, provide data for probing the angular size--redshift relation, offering a compl…
Heavy interstellar scattering toward the near end of the Galactic bar
A. B. Pushkarev, A. Brunthaler, Y. Y. Kovalev +8
We present results of a pilot observational wide-field VLBI campaign on probing scattering properties of the partly ionized interstellar medium towards the Galactic plane sky regio…
Probing plasma scattering screens towards the quasar 2005+403 with long-term RATAN-600 observations
T. A. Koryukova, S. A. Trushkin, I. N. Pashchenko +1
We continue investigating the observed properties of the quasar 2005403 seen through the highly turbulent plasma in the Cygnus region. Our earlier study Koryukova+2023 revealed…
Multiple imaging of the quasar 2005+403 formed by anisotropic scattering
T. A. Koryukova, A. B. Pushkarev, S. Kiehlmann +1
We report on the low Galactic latitude () quasar 2005403, the second active galactic nuclei, in which we detected a rare phenomenon of multiple imaging induced by r…
Tracing Milky Way scattering by compact extragalactic radio sources
T. A. Koryukova, A. B. Pushkarev, A. V. Plavin +1
We used archival very long baseline interferometry (VLBI) data of active galactic nuclei (AGN) observed from 1.4 GHz to 86 GHz to measure the angular size of VLBI radio cores in 89…