93 citations · 162 across the 9 of their papers we have counts for
9 papers
Galaxy rotation curve based on RGB stars from the Gaia DR3 catalogue
P. N. Fedorov, A. M. Dmytrenko, V. S. Akhmetov +8
In this paper, we construct a detailed circular velocity curve of the Milky Way out to 20 kpc based on the radial component of the Jeans equation in cylindrical coordinates, assumi…
Spatial orientation and shape of the velocity ellipsoids of the Gaia DR3 giants and subgiants in the Galactic plane
A. M. Dmytrenko, P. N. Fedorov, V. S. Akhmetov +8
We present the results of determining the parameters characterizing the shape and orientation of residual velocity ellipsoids from the Gaia DR3 red giants and subgiants. We show th…
Determining the parameters of the spiral arms of the Galaxy from kinematic tracers based on Gaia DR3 data
S. I. Denyshchenko, P. N. Fedorov, V. S. Akhmetov +2
We present the results of determining the parameters of the spiral arms of the Galaxy using the stars Gaia DR3, whose absolute magnitude is < 4, and which allow tracing spira…
The vertex coordinates of the Galaxy's stellar systems according to the Gaia DR3 catalogue
A. M. Dmytrenko, P. N. Fedorov, V. S. Akhmetov +2
We present the results of determining the coordinates of the vertices of various stellar systems, the centroids of which are located in the Galactic plane. To do this, the position…
Mapping the kinematic parameters of the Galaxy from the Gaia EDR3 red giants and sub-giants
P. N. Fedorov, V. S. Akhmetov, A. B. Velichko +2
We present the results of a kinematic analysis of red giants and subgiants whose centroids are in the plane of our Galaxy. For this, the positions, parallaxes, proper motions, and…
Kinematics of the Milky Way from the Gaia EDR3 red giants and sub-giants
P. N. Fedorov, V. S. Akhmetov, A. B. Velichko +2
We present the results of the kinematic investigations carried out with the use of spatial velocities of red giants and sub-giants containing in the ~EDR3 catalogue. The twel…
Testing stellar proper motions of the TGAS using data of the HSOY, UCAC5 and PMA catalogues
P. N. Fedorov, V. S. Akhmetov, A. B. Velichko
We present an investigation of stellar proper motions of the TGAS catalogue and ground-based HSOY, UCAC5 and PMA catalogues derived by combining with the Gaia DR1 space data. This…
Formation of Zr I and II lines under non-LTE conditions of stellar atmospheres
A. Velichko, L. Mashonkina, H. Nilsson
The non-local thermodynaic equilibrium (non-LTE) line formation for the two ions of zirconium is considered through a range of spectral types when the Zr abundance varies from the…
The Hamburg/ESO R-process Enhanced Star survey (HERES). V. Detailed abundance analysis of the r-process enhanced star HE 2327-5642
L. Mashonkina, N. Christlieb, P. S. Barklem +3
We report on a detailed abundance analysis of the strongly r-process enhanced giant star, HE 2327-5642 ([Fe/H] = -2.78, [r/Fe] = +0.99). Determination of stellar parameters and ele…