3 papers
astro-ph.GA2025
Stability of the Milky Way Satellite Galaxy Plane under the Influence of Neighbors
S. V. Pilipenko, N. R. Arakelyan
Trajectories of test particles in a time-varying nonspherical gravitational potential model of our Galaxy are considered. The role of the quadrupole component of the potential, whi…
astro-ph.GA2025
Variable gravitational potential of Milky Way analogues in HESTIA suite
Naira R. Arakelyan, Sergey V. Pilipenko, Stefan Gottlöber +3
Investigations of trajectories of various objects orbiting the Milky Way (MW) halo with modern precision, achievable in observations by Gaia, requires sophisticated, non-stationary…
astro-ph.CO2025
On the increase in the concentration of primordial black holes in the halos of dwarf galaxies
S. V. Pilipenko, M. V. Tkachev, N. R. Arakelyan
Through numerical experiments, we have predicted that if dark matter (DM) contains even a small fraction, , of primordial black holes (PBHs), during the formation o…