Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Koval', V. V."'
Publikováno v:
2024, Astrophysical Bulletin, Vol. 79, No. 3
We present an analysis of the relative abundance features of a number of chemical elements in the atmospheres of metal-rich ($\rm{[Fe/H]} > -1.0$) Galactic-field RR~Lyrae variable stars and the kinematic characteristics of these stars. We have previo
Externí odkaz:
http://arxiv.org/abs/2408.03107
The differences in the relationships between the physical parameters and the chemical-element abundances in accreted globular star clusters and those formed inside the Galaxy have been investigated. The information on the supposed formation sites of
Externí odkaz:
http://arxiv.org/abs/2010.10890
We use the data of our extended catalog of spectroscopic determinations of elemental abundances in the atmospheres of Galactic-field RR Lyrae type variables to show that metal-rich RR Lyraes ($\rm{[Fe/H]} > -1.0$) have anomalous abundances of some el
Externí odkaz:
http://arxiv.org/abs/2009.00906
Publikováno v:
Astrophysical Bulletin,2019, Volume 74, Issue 4, p.403-423
A comprehensive statistical analysis of the relationship between the chemical and spatially kinematic parameters of the globular clusters of the Galaxy has been performed. The data of the author's compilation catalog contain astrophysical parameters
Externí odkaz:
http://arxiv.org/abs/2002.10692
Using modern published data on velocities and spectroscopic definitions of chemical elements in stellar objects of the Galaxy, we investigated the relationship of chemical composition with the kinematics of different populations. The paper shows that
Externí odkaz:
http://arxiv.org/abs/2002.10729
Publikováno v:
Astronomy Reports, 2019, Vol. 63, No. 4, pp. 274-288
A catalog of Galactic globular clusters has been compiled and used to analyze relations between the chemical and kinematic parameters of the clusters. The catalog contains positions, distances, luminosities, metallicites, and horizontal-branch morpho
Externí odkaz:
http://arxiv.org/abs/1904.06256
Publikováno v:
Astronomy Reports, 2019, Vol. 63, No. 3, pp. 203-211
The surface gravities and effective temperatures have been added to a compilative catalog published earlier, which includes the relative abundances of several chemical elements for 100 field RR Lyrae stars. These atmoshperic parameters and evolutiona
Externí odkaz:
http://arxiv.org/abs/1903.12039
Akademický článek
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Data of our compiled catalog containing the positions, velocities, and metallicities of 415 RR~Lyrae variable stars and the relative abundances [el/Fe] of 12~elements for 101 RR~Lyrae stars, including four $\alpha$~elements (Mg, Ca, Si, and Ti), are
Externí odkaz:
http://arxiv.org/abs/1712.07373
Akademický článek
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