Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Alexey S. Rastorguev"'
Publikováno v:
Astronomy Letters. 47:163-169
In view of the absence of a satisfactory solution to the globular cluster (GC) classification problem, we have searched for a physical parameter that admits of the GC classification and finding empirical dependences on observed physical characteristi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2584af92503fa0b1b81eaf16fb43b81b
https://doi.org/10.1134/s106377372103004x
https://doi.org/10.1134/s106377372103004x
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 502:4377-4391
To construct the rotation curve of the Galaxy, classical Cepheids with proper motions, parallaxes and line-of-sight velocities from the Gaia DR2 Catalog are used in large part. The working sample formed from literature data contains about 800 Cepheid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e68d5ca386402ec608134893959cc5b6
https://doi.org/10.1093/mnras/stab074
https://doi.org/10.1093/mnras/stab074
Publikováno v:
Astronomy Letters. 45:453-461
V CVn is a red semiregular variable star with an amplitude of its V-band brightness variations of ≈2m. An unusually high amplitude of its polarization variability, up to 6%, a noticeable inverse correlation between polarization and total flux, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28f04352d2c73b1739abcbf13d1270ae
https://doi.org/10.1134/s1063773719070065
https://doi.org/10.1134/s1063773719070065
Publikováno v:
Astrophysical Bulletin. 74:93-108
We present an analytical review of the current state of the problems of stellar astronomy. We report the results obtained by Russian astronomers by 2017.We show that the studies conducted in Russia cover all major fields of stellar astronomy, use mod
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https://explore.openaire.eu/search/publication?articleId=doi_________::23a28898a98c2d8a97ec40ab821f90fc
https://doi.org/10.1134/s1990341319010097
https://doi.org/10.1134/s1990341319010097
We present a realization of the maximum-likelihood (ML) technique, which is one of the latest modifications of the Baade--Becker--Wesselink (BBW) method. Our approach is based on non-linear calibrations of the effective temperature and bolometric cor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1299183006a9359109958af38150b14
http://arxiv.org/abs/2010.01699
http://arxiv.org/abs/2010.01699
We studied a small comet-shape reflection nebula, located in the dark cloud SL 4 in the Vela Molecular Ridge cloud C, known as BBWo 192E (GM 1-23), and a young infrared cluster embedded into the nebula, for the evidences of recent star formation. We
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5752b61057c3b3e10f10885caa7ddd1b
http://arxiv.org/abs/2009.00642
http://arxiv.org/abs/2009.00642
Autor:
A. A. Tatarnikov, A. M. Tatarnikov, A. A. Tatarnikova, Alexey S. Rastorguev, T. G. Sitnik, Oleg V. Egorov
Two star-forming regions are studied: the young embedded open cluster vdB 130 and the protocluster neighbourhood observed in the head and tail of the cometary molecular cloud located in the wall of the expanding supershell surrounding the Cyg OB1 ass
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d65ab5bd320d0838e23bdedb3dad5020
Publikováno v:
Astronomy Letters. 44:688-698
Based on a sample of RR Lyrae variable stars including more than 9000 objects with proper motions and distances, we have investigated the kinematics of the Galactic halo from the two-dimensional velocity field. We have used both the proper motions de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0269584036dfdd91baeee26c357ff32
https://doi.org/10.1134/s1063773718110075
https://doi.org/10.1134/s1063773718110075
Publikováno v:
Solar System Research. 51:579-586
We propose a number of prospective observational programs for the ultraviolet space observatory WSO-UV, which seem to be of great importance to modern galactic astronomy. The programs include the search for binary Cepheids; the search and detailed ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cff5ca3cff03816aca27cf11118ffd9b
https://doi.org/10.1134/s0038094617070152
https://doi.org/10.1134/s0038094617070152
Publikováno v:
Astronomy Letters. 43:536-544
Agekyan’s λ-factor that allows for the effect of multiplicity of stellar encounters with large impact parameters has been used for the first time to directly calculate the diffusion coefficients in the phase space of a stellar system. Simple estim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcff0a75b022331966af3f8aad24afbf
https://doi.org/10.1134/s1063773717080060
https://doi.org/10.1134/s1063773717080060