activity
20242026
most citedSpatial orientation and shape of the velocity ellipsoids of the Gaia DR3 giants and subgiants in the Galactic plane

3 citations · 5 across the 9 of their papers we have counts for

collaborators

10 papers

astro-ph.GA2026

The 2MIG isolated AGNs -- 4. Linking hot-dust reverberation to spectroscopically predicted BLR scales in IC~5287 and Mrk~845

I. O. Izviekova, I. B. Vavilova, O. V. Kompaniiets +2

We investigate the relation between directly measured hot-dust reverberation scales and spectroscopically predicted broad-line region (BLR) scales in the isolated Seyfert galaxies…

astro-ph.GA2026

Revealing a multi-zone circumnuclear dust response in UGC~11487 through phase-resolved WISE W1--W2 diagnostics

I. O. Izviekova, O. V. Kompaniiets, I. B. Vavilova

Mid-infrared (MIR) flares provide a direct probe of dust reprocessing in obscured tidal disruption event (TDE) candidates when the primary optical or ultraviolet flare is weak, mis…

astro-ph.GA2026

Milky Way Near Twins (MWNeTs). I. A Hierarchical Framework for Identifying Candidate Evolutionary Counterparts of the Milky Way

I. B. Vavilova, A. M. Dmytrenko, D. V. Dobrycheva +8

Searches for Milky Way analogues traditionally rely on a limited set of present-day global properties. However, galaxies with similar morphology, stellar mass, star-formation rate,…

astro-ph.GA2026

The 2MIG isolated AGNs. 3. Optical--IR variability and dust reverberation in the NLSy1 galaxies Mrk~42 and Mrk~493

I. O. Izviekova, I. B. Vavilova, O. V. Kompaniiets +2

This work presents the first dedicated optical--mid-infrared time-domain variability and dust-reverberation analysis of the isolated NLSy1 galaxies Mrk 42 and Mrk 493. We combine Z…

astro-ph.GA2025★ 2 cited

NGC 3521 as the Milky Way near twin: spectral energy distribution from UV to radio decameter ranges

O. V. Kompaniiets, I. B. Vavilova, Y. V. Vasylkivskyi +10

Milky Way analogues (MWAs) are usually selected from structural and kinematic properties, but robust SED-based similarity criteria are limited by heterogeneous photometry and incom…

astro-ph.GA2025

Galaxy rotation curve based on RGB stars from the Gaia DR3 catalogue

P. N. Fedorov, A. M. Dmytrenko, V. S. Akhmetov +8

In this paper, we construct a detailed circular velocity curve of the Milky Way out to 20 kpc based on the radial component of the Jeans equation in cylindrical coordinates, assumi…

astro-ph.GA2025

Search for the potential electromagnetic counterparts of neutrino events in SDSS galaxies at z<0.1

O. Sergijenko., I. B. Vavilova, I. O. Izviekova +1

Identification of electromagnetic emission in coincidence with high-energy neutrinos is fundamentally important for multimessenger astronomy. Such observations are essential for co…

astro-ph.GA2025

Milky Way galaxy-analogs and isolated galaxies with bars: environmental density in the Local Volume

O. V. Kompaniiets, I. B. Vavilova, O. M. Kukhar +6

The environmental density of galaxies within the cosmic web constrains their 3D locations in filaments, voids, groups, and clusters. It traces the distribution of baryons and the i…

astro-ph.HE2025

The 2MIG isolated AGNs -- 2. X-ray general properties and peculiarities

O. V. Kompaniiets, A. A. Vasylenko, I. B. Vavilova

We have analysed a sample of 2MIG isolated galaxies hosting AGNs (isolated AGNs) to assess whether their nuclear activity differs from that in denser environments. The isolation cr…

astro-ph.GA2024★ 3 cited

Spatial orientation and shape of the velocity ellipsoids of the Gaia DR3 giants and subgiants in the Galactic plane

A. M. Dmytrenko, P. N. Fedorov, V. S. Akhmetov +8

We present the results of determining the parameters characterizing the shape and orientation of residual velocity ellipsoids from the Gaia DR3 red giants and subgiants. We show th…