Zobrazeno 1 - 10
of 20
pro vyhledávání: '"G. A. Chuntonov"'
Publikováno v:
Odessa Astronomical Publications, Vol 23, Iss 0, Pp 33-36 (2010)
It is known that the chemical elements distribution on the surface of chemically peculiar (CP) stars are associated with the distribution of the magnetic field. It is interest to study CP stars of various types and temperatures for the distribution o
Externí odkaz:
https://doaj.org/article/c8e28c3545a047e4b3f46cfd5451f122
Autor:
A. V. Shavrina, Yu. V. Glagolevskij, J. Silvester, G. A. Chuntonov, Ya. V. Pavlenko, V. R. Khalack
Publikováno v:
Odessa Astronomical Publications, Vol 21, Iss 0, Pp 115-119 (2008)
Externí odkaz:
https://doaj.org/article/a53f1e18b06246208e08c36f58bb1d4c
Publikováno v:
Astrophysical Bulletin. 69:339-355
The Main Stellar Spectrograph (MSS) of the 6-m telescope of the Special Astrophysical Observatory was developed in the early 1970s and has been in permanent operation since 1975. This instrument has been successfully kept operational for a long time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::293918de3d8faf63a9e0d7cb2ec35204
https://doi.org/10.1134/s1990341314030109
https://doi.org/10.1134/s1990341314030109
Autor:
G. A. Chuntonov
Publikováno v:
Astrophysical Bulletin. 68:461-464
We search for the variable component of themagnetic field in γ Equ by studying four Nd III lines with the Main Stellar Spectrograph of the 6-m BTA telescope of the Special Astrophysical Observatory via accumulation and cyclic transfer of the electro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f7d4ac46d663af4c32d6fe3cf7a27b0
https://doi.org/10.1134/s199034131304007x
https://doi.org/10.1134/s199034131304007x
Publikováno v:
Astrophysical Bulletin. 68:454-460
Modelling the magnetic field structure in HD49976, we obtained a map of its magnetic field distribution on the surface and its main parameters. Simulating the distribution of Ca and Sr by the phase dependences of the Ca II 3934 A and Sr II 4215 A equ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e148b66f36d4a455c22c51c58e123c17
https://doi.org/10.1134/s1990341313040068
https://doi.org/10.1134/s1990341313040068
Publikováno v:
Astrophysical Bulletin. 68:184-195
The results of high-resolution spectropolari metric observations (R = 60 000) of the B0.5-type subgiant ɛ PerA are reported. Regular components of line profile variations with the frequencies 3.82–12.99 d−1 are found. A possible relation between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5198032cb3bda49066e4b1fd175fb52d
https://doi.org/10.1134/s1990341313020065
https://doi.org/10.1134/s1990341313020065
Autor:
Viktor Khalack, G. A. Chuntonov, A. V. Shavrina, Ya. V. Pavlenko, Yu. V. Glagolevskij, J. Silvester
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 401:1882-1888
The magnetic star HD 21699 possesses a unique magnetic field structure where the magnetic dipole is displaced from the centre by 0.4 +/- 0.1 of the stellar radius (perpendicularly to the magnetic axis), as a result, the magnetic poles are situated cl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2aa293a2a7a654ae2bbc8130cd61b275
https://doi.org/10.1111/j.1365-2966.2009.15765.x
https://doi.org/10.1111/j.1365-2966.2009.15765.x
Autor:
G. A. Chuntonov, G. G. Valyavin, D. O. Kudryavtsev, T. E. Burlakova, Alexander F. Kholtygin, S. N. Fabrika, D. Kang, G. A. Galazutdinov, M. V. Yushkin
Publikováno v:
Astronomy Reports. 51:920-931
We observed the bright supergiant ρ Leo (B1 lab) in January–February 2004 using the 6-m telescope of the Special Astrophysical Observatory (Russia) and the 1.8-m telescope of the Bohyunsan Optical Astronomy Observatory (South Korea). 47 spectra wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::465205c971499813abc5bd947c81f4e8
https://doi.org/10.1134/s1063772907110054
https://doi.org/10.1134/s1063772907110054
Autor:
G. A. Chuntonov, Yu. V. Glagolevskij
Publikováno v:
Astrophysics. 50:362-371
A model is constructed for the magnetic field of the He-weak CP star HD 21699. This star has the field structure of a dipole displaced by 0.4 radii from the center perpendicular to its axis. The magnetic poles appear to be close to one another on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b9a25d457eeb59189617a7d3330f006
https://doi.org/10.1007/s10511-007-0035-5
https://doi.org/10.1007/s10511-007-0035-5
Autor:
G. A. Chuntonov
Publikováno v:
Astrophysics. 50:83-86
A longitudinal magnetic field is measured for the star e1 Ori C at eight points in its period using the C IV 5801 and 5812 A absorption lines. The maximum value was +231±47 G. The measurements were made with the Main Stellar Spectrograph on the BTA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8fd3b659c23eebf4d4f36e266509aa9
https://doi.org/10.1007/s10511-007-0009-7
https://doi.org/10.1007/s10511-007-0009-7