17 citations · 44 across the 6 of their papers we have counts for
6 papers
Stability of rotation axis of galactic disks in HESTIA suite
Naira R. Arakelyan, Sergey V. Pilipenko, Stefan Gottlöber +3
We have found that in approximately 1/4 of Milky Way or M31 analogues in the HESTIA suite of simulations there is a significant, , change in the axis of rotation orienta…
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…
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…
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…
Globular Clusters Lost by the Sagittarius Dwarf Spheroidal Galaxy
N. R. Arakelyan, S. V. Pilipenko, M. E. Sharina
In this work a search was carried out for globular clusters belonging to the Sagittarius (Sgr) tidal stream using the analysis of spatial positions, radial velocities relative to t…
Spatial Distribution of Globular Clusters in the Galaxy
N. R. Arakelyan, S. V. Pilipenko, N. I. Libeskind
The Milky Way's satellite galaxies and Globular Clusters (GCs) are known to exhibit an anisotropic spatial distribution. We examine in detail this anisotropy by the means of the in…