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The OSACA database and a kinematic analysis of stars in the solar neighborhood
We transformed radial velocities compiled from more than 1400 published sources, including the Geneva-Copenhagen survey of the solar neighborhood (CORAVEL-CfA), into a uniform system based on the
Parameters of Six Selected Galactic Potential Models
Abstract This paper is devoted to the refinement of the parameters of the six three-component (bulge, disk, halo) axisymmetric Galactic gravitational potential models on the basis of modern data on
Analysis of the Z distribution of young objects in the Galactic thin disk
We have obtained new estimates of the Sun’s distance from the symmetry plane Z⊙ and the vertical disk scale height h using currently available data on stellar OB associations, Wolf–Rayet stars, HII
The Milky Way spiral structure parameters from data on masers and selected open clusters
To estimate the parameters of the Galactic spiral structure - namely, the pitch angle i and the number of spiral arms,- data on Galactic masers with known trigonometric parallaxes were used. We
Dynamical information along with survey data on metallicity and in some cases age have been used recently by some authors to search for candidates of stars that were born in the cluster where the Sun
Investigation of the Galactic bar based on photometry and stellar proper motions
A new method for selecting stars in the Galactic bar based on 2MASS infrared photometry in combination with stellar proper motions from the Kharkiv XPM catalogue has been implemented. In accordance
Analysis of peculiarities of the stellar velocity field in the solar neighborhood
Based on a new version of the Hipparcos catalogue and an updated Geneva-Copenhagen survey of F and G dwarfs, we analyze the space velocity field of ≈17 000 single stars in the solar neighborhood. The
Galactic masers: Kinematics, spiral structure and the disk dynamic state
We applied the currently most comprehensive version of the statistical-parallax technique to derive the kinematical parameters of the maser sample with 136 sources. Our kinematic model comprises the
Rotation curve and mass distribution in the Galaxy from the velocities of objects at distances up to 200 kpc
Three three-component (bulge, disk, halo) model Galactic gravitational potentials differing by the expression for the dark matter halo are considered. The central (bulge) and disk components are
Kinematic analysis of solar-neighborhood stars based on RAVE4 data
We consider stars with radial velocities, proper motions, and distance estimates from the RAVE4 catalogue. Based on a sample of more than 145 000 stars at distances r < 0.5 kpc, we have found the