output
19982025
most citedHic sunt dracones: Cartography of the Milky Way spiral arms and bar resonances with Gaia Data Release 2

63 citations

Showing astro-ph.GAShow all

19 papers · 1 filter

astro-ph.GA2025

Merging of spiral galaxies: observations and modeling

Alexander Khoperskov, Sergei Khrapov, Danila Sirotin +1

We present a study of the dynamics of multi-component models of spiral galaxies at various stages of grand merging. Numerical models include a self-consistent account of the dynami…

astro-ph.GA2024★ 9 cited

Formation of Transitional cE/UCD Galaxies through Massive/Dwarf Disc Galaxy Mergers

Alexander V. Khoperskov, Sergey S. Khrapov, Danila S. Sirotin

The dynamics of the merger of a dwarf disc galaxy with a massive spiral galaxy of the Milky Way type have been studied in detail. The remnant of such interaction after numerous cro…

astro-ph.GA2023★ 1 cited

Formation of spiral dwarf galaxies: observational data and results of numerical simulation

Sergey Khrapov, Alexander Khoperskov, Natalia Zaitseva +2

Recent studies show the possibility of the formation of fairly regular and global spiral patterns in dwarf galaxies (dS type). Our sample of observed dwarf objects of this class al…

astro-ph.GA2021★ 2 cited

On the formation of spiral arms in dwarf galaxies

Anatoly V. Zasov, Alexander V. Khoperskov, Natalia A. Zaitseva +1

Spiral structure (both flocculent and Grand Design types) is very rarely observed in dwarf galaxies because the formation of spiral arms requires special conditions. In this work w…

astro-ph.GA2021★ 15 cited

Modeling of Spiral Structure in a Multi-Component Milky~Way-Like Galaxy

Sergey Khrapov, Alexander Khoperskov, Vladimir Korchagin

Using recent observational data, we construct a set of multi-component equilibrium models of the disk of a Milky Way-like galaxy. The disk dynamics are studied using collisionless-…

astro-ph.GA2020★ 45 cited

Extreme kinematic misalignment in IllustrisTNG galaxies: the origin, structure and internal dynamics of galaxies with a large-scale counterrotation

Sergey Khoperskov, Igor Zinchenko, Branislav Avramov +9

Modern galaxy formation theory suggests that the misalignment between stellar and gaseous components usually results from an external gas accretion and/or interaction with other ga…