top of page

Selected Publications

DM structure around simulated Local Group from HESTIA-2 project

UHD simulation (4 pc resolution) of star formation in an isolated MW

Formation of nested bars in an N-body simulation

Stellar component, gas and young stars in a chemo-dynamical simulation of MW

Molecular clouds formation in spiral arms in a galaxy scale simulation

personal choice of a single first-author paper per year

2024

S. Khoperskov, I. Minchev, M. Steinmetz et al. "Why does Milky Way have a bar?", MNRAS

We analyzed the parameters of the Milky Way's bar to determine the conditions that favour its formation, using TNG50 MW/M31 analogues as a reference.

2023

S. Khoperskov, I. Minchev, N. Libeskind et al.   "The stellar halo in Local Group Hestia simulations", A&A

A series of three papers about in-situ, accreted and chemical abundance composition of stellar halos in HESTIA simulations of the LG

2022

S. Khoperskov & O. Gerhard "Chemo-kinematics of the Milky Way spiral arms and bar resonances", A&A

An in-depth chemo-kinematic study of ridges, moving groups and other phases-space features in MW; understanding their origin using N-body simulations

2021

S. Khoperskov, M. Haywood, O. Snaith et al. "Bimodality of [α/Fe]-[Fe/H] distributions is a natural outcome of dissipative collapse and disc growth in MW-type galaxies", A&A

A study of the origins of the disc chemical dichotomy through detailed analysis using our own chemo-dynamic galaxy formation simulations.

2020

S. Khoperskov, P. di Matteo, M. Haywood et al. "Escapees from the bar resonances. Presence of low-eccentricity metal-rich stars at the solar vicinity", A&A

Proposed a new mechanism of radial migration. Very metal-rich stars can be captured by the bar resonances and moved out to the Sun by decelerating bar.

2019

S. Khoperskov, A. Mastrobuono-Battisti, P. Di Matteo et al. "Mergers, tidal interactions, and mass exchange in a population of disc globular clusters", A&A

N-body models of resolved thick disc GCs show that they can exchange mass and even merge. Possible origin of multiple populations in GCs

2018

S. Khoperskov, P. Di Matteo, O. Gerhard et al. "The echo of the bar buckling: phase-space spirals in Gaia DR2", A&A Letters

First alternative mechanism of the phase-space spiral (Gaia snail) formation, driven by vertical waves triggered by the vertical instability of the bar

2017

S. Khoperskov & E. Vasiliev "A Kennicutt-Schmidt relation at molecular cloud scales and beyond", A&A

How to get the right K-S law? Depends on the spatial scale used to average gas density and star formation rate

2016

S. Khoperskov, E. Vasiliev, D. Ladeyschikov et al. "Giant molecular cloud scaling relations", A&A

Understanding of the MCs scaling relations depending on the definition of a cloud using galaxy-scale simulations and non-equilibrium chemistry

2015

S. Khoperskov & G. Bertin "Spiral density waves in the outer galactic gaseous discs", MNRAS

Galaxy interactions destroy the outer gas disc, but perturbations from the inner galaxy can propagate outwards and create spirals beyond the optical radius.

2014

S. Khoperskov, A. Moiseev, A. Saburova et al. "To be or not to be oblate: the shape of the dark matter halo in polar ring galaxies", MNRAS

Using long-slit observations about gas and stellar kinematics, we measured the shape of DM haloes in 3 PRGs. In one case, it changes with distance!

2013

S. Khoperskov, E. Vasiliev, A. Sobolev et al. "The simulation of molecular clouds formation in the Milky Way", MNRAS

Very high-resolution multiphase ISM galaxy scale simulations of molecular clouds in the MW-like spiral galaxy.

bottom of page