Zobrazeno 1 - 10
of 10
pro vyhledávání: '"S L Malchenko"'
Autor:
S. L. Malchenko
Publikováno v:
Odessa Astronomical Publications, Vol 21, Iss 0, Pp 60-63 (2008)
Both high and medium resolution spectroscopy of the Be stars and binary stellar systems in the young open clusters (e.g., NGC 869 & 884, NGC 6913, NGC 6871, NGC 7160 and NGC 7419) were carried out. High resolution spectroscopy of 100 stars in the Hα
Externí odkaz:
https://doaj.org/article/225fe0d80b7d4d9484284f2055e3b8fb
Publikováno v:
Odessa Astronomical Publications, Vol 20, Iss 1, Pp 120-123 (2007)
On high-resolution spectra, obtained in the Hα region and medium resolution spectra obtained in the region 4420-4960A together with radial velocities, which was taken from other published sources we analyzed the radial velocities and calculate orbit
Externí odkaz:
https://doaj.org/article/abde753cb3bc49ec9afc13042ed2daee
Autor:
A E Kiv, V N Soloviev, S O Semerikov, A M Striuk, V V Osadchyi, T A Vakaliuk, P P Nechypurenko, O V Bondarenko, I S Mintii, S L Malchenko
Publikováno v:
Journal of Physics: Conference Series. 2288:011001
This paper represents a preface to the Proceedings of the XIV International Conference on Mathematics, Science and Technology Education (ICon-MaSTEd 2022) held at the Kryvyi Rih State Pedagogical University, Ukraine, 18-20 May 2022. Background inform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4757a610d6bf98e626a811477761603
https://doi.org/10.1088/1742-6596/2288/1/011001
https://doi.org/10.1088/1742-6596/2288/1/011001
Publikováno v:
Journal of Physics: Conference Series. 1946:012010
Modern mobile technologies have become widespread in our lives. All of us use them every day. The use of mobile phones in education is a topical issue too. This paper presents the methodological features of the use of mobile technologies in the astro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ba1e22d3ba990ccc42b36fa51272cc6
https://doi.org/10.1088/1742-6596/1946/1/012010
https://doi.org/10.1088/1742-6596/1946/1/012010
Autor:
S. L. Malchenko
Publikováno v:
Journal of Physics: Conference Series. 1840:012016
The method of astronomy homework organization in order to increase students’ cognitive activity is described in the article, as well as the possibility of individualisation and differentiation of homework is shown. Modern methods offer a lot of tec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7dd4237ec8afde2e43c8ee5a7f20aa18
https://doi.org/10.1088/1742-6596/1840/1/012016
https://doi.org/10.1088/1742-6596/1840/1/012016
Publikováno v:
Astronomy Letters. 42:674-685
Analysis of the radial velocities based on spectra of high (near the Hα line) and moderate (4420–4960 A) resolutions supplemented by the published radial velocities has revealed the binarity of a bright member of the young open star cluster χ Per
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b247598aa48a81d0a86c5848f0a9f3f1
https://doi.org/10.1134/s106377371609005x
https://doi.org/10.1134/s106377371609005x
Autor:
A. E. Tarasov, S. L. Malchenko
Publikováno v:
Astronomy Letters. 38:428-435
Based on high- and medium-resolution spectra, we analyze the population of Be stars in eight young open star clusters. We have found a clear dependence of the relative content of early-type (B0-B3) Be stars on the cluster age. The relative concentrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a75e10c44598595b1b853b587239f84d
https://doi.org/10.1134/s1063773712060059
https://doi.org/10.1134/s1063773712060059
Autor:
S. L. Malchenko, A. E. Tarasov
Publikováno v:
Astrophysics. 54:52-67
The populations of B and Be-stars in the young open clusters NGC 7419 and NGC 659 are studied. Lowresolution spectral observations in the region of the Hα line are used to study 34 members of NGC 7419 and additional spectra in the range λ3700-6200
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c78bb52161139f14412bf0910e0b686c
https://doi.org/10.1007/s10511-011-9157-x
https://doi.org/10.1007/s10511-011-9157-x
Autor:
A. E. Tarasov, S. L. Malchenko
Publikováno v:
Astrophysics. 52:235-250
This is a study of the population of B and Be stars in the young, relatively poor, diffuse stellar clusters NGC 6871 and NGC 6913. High resolution spectra are used to study the Hα line of eleven stars in order to detect emission. Emission profiles w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2f31aa247a27822f8d78b72c54a5d1f
https://doi.org/10.1007/s10511-009-9061-9
https://doi.org/10.1007/s10511-009-9061-9
Autor:
S. L. Malchenko, A. E. Tarasov
Publikováno v:
Astrophysics. 51:250-262
High dispersion CCD spectra are used to study the profiles of the Hα and Hβ lines of 48 stars in early spectral classes in the young diffuse binary cluster h/χ Per. In addition, moderate resolution spectra of 15 B and Be stars were taken over the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b8a81fef2775a420ae673c16e742c78
https://doi.org/10.1007/s10511-008-9002-z
https://doi.org/10.1007/s10511-008-9002-z