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Kinematics of Hot Subdwarfs from the Gaia DR2 Catalogue
V. V. Bobylev, A. T. Bajkova
We have studied the kinematic properties of the candidates for hot subdwarfs (HSDs) selected by Geier et al. from the Gaia DR2 catalogue. We have used a total of 12 515 stars with…
Features of the Residual Velocity Ellipsoid of Hot Subdwarfs from the Gaia DR2 Catalog
V. V. Bobylev, A. T. Bajkova
The evolution of the parameters of the residual velocity ellipsoid of hot subdwarfs (HSDs) with their position relative to the Galactic plane is traced, using the HSDs selected by…
Search for the evolutionary relationship between Galactic globular and open clusters using data from the Gaia DR2 Catalog
A. T. Bajkova, V. V. Bobylev
Passing through the Galactic disk, a massive object such as a globular cluster, can trigger star formation process leading to the birth of open clusters. Here, we analyze such poss…
Galactic Rotation Based on OB Stars from the Gaia DR2 Catalogue
V. V. Bobylev, A. T. Bajkova
We have studied a sample containing about 6000 OB stars with proper motions and trigonometric parallaxes from the Gaia DR2 catalogue. The following parameters of the angular veloci…
Kinematic Properties of Open Star Clusters with Data from the Gaia DR2 Catalogue
V. V. Bobylev, A. T. Bajkova
We consider open star clusters (OSCs) with the proper motions, parallaxes, and line-of-sight velocities calculated by various authors from Gaia DR2 data. The distance scale factor…
Kinematics of the Galaxy from a Sample of Young Open Star Clusters with Data from the Gaia DR2 Catalogue
V. V. Bobylev, A. T. Bajkova
We have selected a sample of 326 young open star clusters with the proper motions and distances calculated by various authors from Gaia DR2 data. The mean values of th…
Search for possibly evolutionary linked globular and open clusters
V. V. Bobylev, A. T. Bajkova
Based on a large sample of 133 Galactic globular clusters we obtained a new estimate of the frequency of globular-cluster impacts onto the Galactic plane, which we found to be equa…